How do I find out which Cloudflare data center serves me?

Open https://your-site/cdn-cgi/trace on any Cloudflare-proxied site — the colo field shows the IATA code of the data center you were routed to. Alternatively, check the cf-ray response header in your browser's DevTools: the code after the dash (e.g. 8f1a2b3c4d5e-FRA) is the colo.

Does every Cloudflare data center have its own cache?

Yes. Each colo keeps an independent cache, so a cache HIT in one city says nothing about another. That is why global sites warm their cache per location — otherwise the first visitor in each region always hits a cold cache.

Cloudflare data center locations: all colo codes (IATA) explained

Name: Cloudflare data center locations (colo codes)
Creator: warmup.rocks
License: https://creativecommons.org/licenses/by/4.0/

Colo code	Location	Region
`ABJ`	Abidjan, Ivory Coast	Africa
`ACC`	Accra, Ghana	Africa
`ADD`	Addis Ababa, Ethiopia	Africa
`ALG`	Algiers, Algeria	Africa
`AAE`	Annaba, Algeria	Africa
`TNR`	Antananarivo, Madagascar	Africa
`CAI`	Cairo, Egypt	Africa
`CPT`	Cape Town, South Africa	Africa
`CZL`	Constantine, Algeria	Africa
`DKR`	Dakar, Senegal	Africa
`DAR`	Dar Es Salaam, Tanzania	Africa
`JIB`	Djibouti City, Djibouti	Africa
`DLA`	Douala, Cameroon	Africa
`DUR`	Durban, South Africa	Africa
`GBE`	Gaborone, Botswana	Africa
`HRE`	Harare, Zimbabwe	Africa
`JNB`	Johannesburg, South Africa	Africa
`EBB`	Kampala, Uganda	Africa
`KGL`	Kigali, Rwanda	Africa
`FIH`	Kinshasa, DR Congo	Africa
`LOS`	Lagos, Nigeria	Africa
`LLW`	Lilongwe, Malawi	Africa
`LAD`	Luanda, Angola	Africa
`LUN`	Lusaka, Zambia	Africa
`MPM`	Maputo, Mozambique	Africa
`MBA`	Mombasa, Kenya	Africa
`NBO`	Nairobi, Kenya	Africa
`ORN`	Oran, Algeria	Africa
`OUA`	Ouagadougou, Burkina Faso	Africa
`MRU`	Port Louis, Mauritius	Africa
`RUN`	Saint-Denis, Réunion	Africa
`TUN`	Tunis, Tunisia	Africa
`WDH`	Windhoek, Namibia	Africa
`ASK`	Yamoussoukro, Ivory Coast	Africa
`AGR`	Agra, India	Asia
`AMD`	Ahmedabad, India	Asia
`AKX`	Aktobe, Kazakhstan	Asia
`ALA`	Almaty, Kazakhstan	Asia
`NQZ`	Astana, Kazakhstan	Asia
`BWN`	Bandar Seri Begawan, Brunei	Asia
`BLR`	Bangalore, India	Asia
`BKK`	Bangkok, Thailand	Asia
`XIY`	Baoji, China	Asia
`BHY`	Beihai, China	Asia
`BBI`	Bhubaneswar, India	Asia
`FRU`	Bishkek, Kyrgyzstan	Asia
`CGY`	Cagayan de Oro, Philippines	Asia
`CEB`	Cebu, Philippines	Asia
`IXC`	Chandigarh, India	Asia
`CGD`	Changde, China	Asia
`CSX`	Changsha, China	Asia
`CZX`	Changzhou, China	Asia
`CTU`	Chengdu, China	Asia
`MAA`	Chennai, India	Asia
`CNX`	Chiang Mai, Thailand	Asia
`CGP`	Chittagong, Bangladesh	Asia
`CKG`	Chongqing, China	Asia
`CJB`	Coimbatore, India	Asia
`CMB`	Colombo, Sri Lanka	Asia
`DAD`	Da Nang, Vietnam	Asia
`DLC`	Dalian, China	Asia
`DPS`	Denpasar, Indonesia	Asia
`DAC`	Dhaka, Bangladesh	Asia
`FUO`	Foshan, China	Asia
`FUK`	Fukuoka, Japan	Asia
`FOC`	Fuzhou, China	Asia
`CAN`	Guangzhou, China	Asia
`KWE`	Guiyang, China	Asia
`HAK`	Haikou, China	Asia
`HAN`	Hanoi, Vietnam	Asia
`SJW`	Hengshui, China	Asia
`SGN`	Ho Chi Minh City, Vietnam	Asia
`HKG`	Hong Kong	Asia
`HYD`	Hyderabad, India	Asia
`ISB`	Islamabad, Pakistan	Asia
`CGK`	Jakarta, Indonesia	Asia
`JXG`	Jiaxing, China	Asia
`TNA`	Jinan, China	Asia
`CNN`	Kannur, India	Asia
`KNU`	Kanpur, India	Asia
`KHH`	Kaohsiung City	Asia
`KHI`	Karachi, Pakistan	Asia
`KTM`	Kathmandu, Nepal	Asia
`COK`	Kochi, India	Asia
`CCU`	Kolkata, India	Asia
`KJA`	Krasnoyarsk, Russia	Asia
`KUL`	Kuala Lumpur, Malaysia	Asia
`KCH`	Kuching, Malaysia	Asia
`KMG`	Kunming, China	Asia
`LHE`	Lahore, Pakistan	Asia
`PKX`	Langfang, China	Asia
`LYA`	Luoyang, China	Asia
`MFM`	Macau	Asia
`MLG`	Malang, Indonesia	Asia
`MLE`	Malé, Maldives	Asia
`MNL`	Manila, Philippines	Asia
`BOM`	Mumbai, India	Asia
`NAG`	Nagpur, India	Asia
`OKA`	Naha, Japan	Asia
`DEL`	New Delhi, India	Asia
`KIX`	Osaka, Japan	Asia
`PAT`	Patna, India	Asia
`PNH`	Phnom Penh, Cambodia	Asia
`PNQ`	Pune, India	Asia
`TAO`	Qingdao, China	Asia
`JRG`	Sambalpur, India	Asia
`ICN`	Seoul, South Korea	Asia
`SHA`	Shanghai, China	Asia
`HGH`	Shaoxing, China	Asia
`SZX`	Shenzhen, China	Asia
`SIN`	Singapore, Singapore	Asia
`URT`	Surat Thani, Thailand	Asia
`TPE`	Taipei	Asia
`HYN`	Taizhou, China	Asia
`CRK`	Tarlac City, Philippines	Asia
`PBH`	Thimphu, Bhutan	Asia
`NRT`	Tokyo, Japan	Asia
`TEN`	Tongren, China	Asia
`ULN`	Ulaanbaatar, Mongolia	Asia
`VTE`	Vientiane, Laos	Asia
`XFN`	Xiangyang, China	Asia
`ACX`	Xingyi, China	Asia
`KHN`	Xinyu, China	Asia
`TYN`	Yangquan, China	Asia
`EVN`	Yerevan, Armenia	Asia
`JOG`	Yogyakarta, Indonesia	Asia
`CGO`	Zhengzhou, China	Asia
`AMS`	Amsterdam, Netherlands	Europe
`ATH`	Athens, Greece	Europe
`BCN`	Barcelona, Spain	Europe
`BEG`	Belgrade, Serbia	Europe
`TXL`	Berlin, Germany	Europe
`BOD`	Bordeaux, France	Europe
`BTS`	Bratislava, Slovakia	Europe
`BRU`	Brussels, Belgium	Europe
`OTP`	Bucharest, Romania	Europe
`BUD`	Budapest, Hungary	Europe
`KIV`	Chișinău, Moldova	Europe
`CPH`	Copenhagen, Denmark	Europe
`DUB`	Dublin, Ireland	Europe
`DUS`	Düsseldorf, Germany	Europe
`FRA`	Frankfurt, Germany	Europe
`GVA`	Geneva, Switzerland	Europe
`GOT`	Gothenburg, Sweden	Europe
`HAM`	Hamburg, Germany	Europe
`HEL`	Helsinki, Finland	Europe
`IST`	Istanbul, Turkey	Europe
`ADB`	Izmir, Turkey	Europe
`KBP`	Kyiv, Ukraine	Europe
`LIS`	Lisbon, Portugal	Europe
`LJU`	Ljubljana, Slovenia	Europe
`LHR`	London, United Kingdom	Europe
`LUX`	Luxembourg City, Luxembourg	Europe
`LYS`	Lyon, France	Europe
`MAD`	Madrid, Spain	Europe
`MAN`	Manchester, United Kingdom	Europe
`MRS`	Marseille, France	Europe
`MXP`	Milan, Italy	Europe
`MSQ`	Minsk, Belarus	Europe
`DME`	Moscow, Russia	Europe
`MUC`	Munich, Germany	Europe
`LCA`	Nicosia, Cyprus	Europe
`OSL`	Oslo, Norway	Europe
`PMO`	Palermo, Italy	Europe
`CDG`	Paris, France	Europe
`PRG`	Prague, Czech Republic	Europe
`KEF`	Reykjavík, Iceland	Europe
`RIX`	Riga, Latvia	Europe
`FCO`	Rome, Italy	Europe
`LED`	Saint Petersburg, Russia	Europe
`MLA`	Santa Venera, Malta	Europe
`SKP`	Skopje, North Macedonia	Europe
`SOF`	Sofia, Bulgaria	Europe
`ARN`	Stockholm, Sweden	Europe
`STR`	Stuttgart, Germany	Europe
`TLL`	Tallinn, Estonia	Europe
`TBS`	Tbilisi, Georgia	Europe
`SKG`	Thessaloniki, Greece	Europe
`TIA`	Tirana, Albania	Europe
`VIE`	Vienna, Austria	Europe
`VNO`	Vilnius, Lithuania	Europe
`WAW`	Warsaw, Poland	Europe
`WRO`	Wroclaw, Poland	Europe
`ZAG`	Zagreb, Croatia	Europe
`ZRH`	Zurich, Switzerland	Europe
`QWJ`	Americana, Brazil	Latin America & the Caribbean
`ARU`	Aracatuba, Brazil	Latin America & the Caribbean
`ARI`	Arica, Chile	Latin America & the Caribbean
`ASU`	Asunción, Paraguay	Latin America & the Caribbean
`BAQ`	Barranquilla, Colombia	Latin America & the Caribbean
`BEL`	Belém, Brazil	Latin America & the Caribbean
`CNF`	Belo Horizonte, Brazil	Latin America & the Caribbean
`BOG`	Bogotá, Colombia	Latin America & the Caribbean
`BSB`	Brasilia, Brazil	Latin America & the Caribbean
`BGI`	Bridgetown, Barbados	Latin America & the Caribbean
`EZE`	Buenos Aires, Argentina	Latin America & the Caribbean
`CFC`	Caçador, Brazil	Latin America & the Caribbean
`CLO`	Cali, Colombia	Latin America & the Caribbean
`VCP`	Campinas, Brazil	Latin America & the Caribbean
`CAW`	Campos dos Goytacazes, Brazil	Latin America & the Caribbean
`XAP`	Chapeco, Brazil	Latin America & the Caribbean
`COR`	Córdoba, Argentina	Latin America & the Caribbean
`CGB`	Cuiaba, Brazil	Latin America & the Caribbean
`CWB`	Curitiba, Brazil	Latin America & the Caribbean
`FLN`	Florianopolis, Brazil	Latin America & the Caribbean
`FOR`	Fortaleza, Brazil	Latin America & the Caribbean
`GEO`	Georgetown, Guyana	Latin America & the Caribbean
`GYN`	Goiânia, Brazil	Latin America & the Caribbean
`GUA`	Guatemala City, Guatemala	Latin America & the Caribbean
`GYE`	Guayaquil, Ecuador	Latin America & the Caribbean
`JOI`	Joinville, Brazil	Latin America & the Caribbean
`JDO`	Juazeiro do Norte, Brazil	Latin America & the Caribbean
`LPB`	La Paz, Bolivia	Latin America & the Caribbean
`LIM`	Lima, Peru	Latin America & the Caribbean
`MAO`	Manaus, Brazil	Latin America & the Caribbean
`MDE`	Medellín, Colombia	Latin America & the Caribbean
`NQN`	Neuquén, Argentina	Latin America & the Caribbean
`PMW`	Palmas, Brazil	Latin America & the Caribbean
`PTY`	Panama City, Panama	Latin America & the Caribbean
`PBM`	Paramaribo, Suriname	Latin America & the Caribbean
`POS`	Port of Spain, Trinidad and Tobago	Latin America & the Caribbean
`POA`	Porto Alegre, Brazil	Latin America & the Caribbean
`UIO`	Quito, Ecuador	Latin America & the Caribbean
`REC`	Recife, Brazil	Latin America & the Caribbean
`RAO`	Ribeirao Preto, Brazil	Latin America & the Caribbean
`GIG`	Rio de Janeiro, Brazil	Latin America & the Caribbean
`SSA`	Salvador, Brazil	Latin America & the Caribbean
`SJO`	San José, Costa Rica	Latin America & the Caribbean
`SJU`	San Juan, Puerto Rico	Latin America & the Caribbean
`SAP`	San Pedro Sula, Honduras	Latin America & the Caribbean
`STI`	Santiago de los Caballeros, Dominican Republic	Latin America & the Caribbean
`SCL`	Santiago, Chile	Latin America & the Caribbean
`SDQ`	Santo Domingo, Dominican Republic	Latin America & the Caribbean
`SJP`	São José do Rio Preto, Brazil	Latin America & the Caribbean
`SJK`	São José dos Campos, Brazil	Latin America & the Caribbean
`GRU`	São Paulo, Brazil	Latin America & the Caribbean
`SOD`	Sorocaba, Brazil	Latin America & the Caribbean
`GND`	St. George's, Grenada	Latin America & the Caribbean
`TGU`	Tegucigalpa, Honduras	Latin America & the Caribbean
`NVT`	Timbó, Brazil	Latin America & the Caribbean
`UDI`	Uberlândia, Brazil	Latin America & the Caribbean
`VIX`	Vitoria, Brazil	Latin America & the Caribbean
`AMM`	Amman, Jordan	Middle East
`LLK`	Astara, Azerbaijan	Middle East
`BGW`	Baghdad, Iraq	Middle East
`GYD`	Baku, Azerbaijan	Middle East
`BSR`	Basra, Iraq	Middle East
`BEY`	Beirut, Lebanon	Middle East
`DMM`	Dammam, Saudi Arabia	Middle East
`DOH`	Doha, Qatar	Middle East
`DXB`	Dubai, United Arab Emirates	Middle East
`EBL`	Erbil, Iraq	Middle East
`HFA`	Haifa, Israel	Middle East
`JED`	Jeddah, Saudi Arabia	Middle East
`KWI`	Kuwait City, Kuwait	Middle East
`BAH`	Manama, Bahrain	Middle East
`MCT`	Muscat, Oman	Middle East
`NJF`	Najaf, Iraq	Middle East
`XNH`	Nasiriyah, Iraq	Middle East
`ZDM`	Ramallah	Middle East
`RUH`	Riyadh, Saudi Arabia	Middle East
`ISU`	Sulaymaniyah, Iraq	Middle East
`TLV`	Tel Aviv, Israel	Middle East
`ABQ`	Albuquerque, NM, United States	North America
`ANC`	Anchorage, AK, United States	North America
`IAD`	Ashburn, VA, United States	North America
`ATL`	Atlanta, GA, United States	North America
`AUS`	Austin, TX, United States	North America
`BGR`	Bangor, ME, United States	North America
`BOS`	Boston, MA, United States	North America
`BUF`	Buffalo, NY, United States	North America
`YYC`	Calgary, AB, Canada	North America
`CLT`	Charlotte, NC, United States	North America
`ORD`	Chicago, IL, United States	North America
`CVG`	Cincinnati, United States	North America
`CLE`	Cleveland, OH, United States	North America
`CMH`	Columbus, OH, United States	North America
`DFW`	Dallas, TX, United States	North America
`DEN`	Denver, CO, United States	North America
`DTW`	Detroit, MI, United States	North America
`RDU`	Durham, NC, United States	North America
`GDL`	Guadalajara, Mexico	North America
`YHZ`	Halifax, Canada	North America
`HNL`	Honolulu, HI, United States	North America
`IAH`	Houston, TX, United States	North America
`IND`	Indianapolis, IN, United States	North America
`JAX`	Jacksonville, FL, United States	North America
`MCI`	Kansas City, MO, United States	North America
`KIN`	Kingston, Jamaica	North America
`LAS`	Las Vegas, NV, United States	North America
`LAX`	Los Angeles, CA, United States	North America
`MEM`	Memphis, TN, United States	North America
`MEX`	Mexico City, Mexico	North America
`MIA`	Miami, FL, United States	North America
`MSP`	Minneapolis, MN, United States	North America
`YUL`	Montréal, QC, Canada	North America
`BNA`	Nashville, United States	North America
`EWR`	Newark, NJ, United States	North America
`ORF`	Norfolk, VA, United States	North America
`OKC`	Oklahoma City, OK, United States	North America
`OMA`	Omaha, NE, United States	North America
`PHL`	Philadelphia, United States	North America
`PHX`	Phoenix, AZ, United States	North America
`PIT`	Pittsburgh, PA, United States	North America
`PDX`	Portland, OR, United States	North America
`QRO`	Queretaro, MX, Mexico	North America
`RIC`	Richmond, VA, United States	North America
`SMF`	Sacramento, CA, United States	North America
`SLC`	Salt Lake City, UT, United States	North America
`SAT`	San Antonio, TX, United States	North America
`SAN`	San Diego, CA, United States	North America
`SFO`	San Francisco, CA, United States	North America
`SJC`	San Jose, CA, United States	North America
`YXE`	Saskatoon, SK, Canada	North America
`SEA`	Seattle, WA, United States	North America
`FSD`	Sioux Falls, SD, United States	North America
`STL`	St. Louis, MO, United States	North America
`TLH`	Tallahassee, FL, United States	North America
`TPA`	Tampa, FL, United States	North America
`YYZ`	Toronto, ON, Canada	North America
`YVR`	Vancouver, BC, Canada	North America
`YWG`	Winnipeg, MB, Canada	North America
`ADL`	Adelaide, SA, Australia	Oceania
`AKL`	Auckland, New Zealand	Oceania
`BNE`	Brisbane, QLD, Australia	Oceania
`CBR`	Canberra, ACT, Australia	Oceania
`CHC`	Christchurch, New Zealand	Oceania
`GUM`	Hagatna, Guam	Oceania
`HBA`	Hobart, Australia	Oceania
`MEL`	Melbourne, VIC, Australia	Oceania
`NOU`	Noumea, New Caledonia	Oceania
`PER`	Perth, WA, Australia	Oceania
`SUV`	Suva, Fiji	Oceania
`SYD`	Sydney, NSW, Australia	Oceania
`PPT`	Tahiti, French Polynesia	Oceania
`WLG`	Wellington, New Zealand	Oceania

Colo code

Location

Region

ABJ

Abidjan, Ivory Coast

Africa

ACC

Accra, Ghana

Africa

ADD

Addis Ababa, Ethiopia

Africa

ALG

Algiers, Algeria

Africa

AAE

Annaba, Algeria

Africa

TNR

Antananarivo, Madagascar

Africa

CAI

Cairo, Egypt

Africa

CPT

Cape Town, South Africa

Africa

CZL

Constantine, Algeria

Africa

DKR

Dakar, Senegal

Africa

DAR

Dar Es Salaam, Tanzania

Africa

JIB

Djibouti City, Djibouti

Africa

DLA

Douala, Cameroon

Africa

DUR

Durban, South Africa

Africa

GBE

Gaborone, Botswana

Africa

HRE

Harare, Zimbabwe

Africa

JNB

Johannesburg, South Africa

Africa

EBB

Kampala, Uganda

Africa

KGL

Kigali, Rwanda

Africa

FIH

Kinshasa, DR Congo

Africa

LOS

Lagos, Nigeria

Africa

LLW

Lilongwe, Malawi

Africa

LAD

Luanda, Angola

Africa

LUN

Lusaka, Zambia

Africa

MPM

Maputo, Mozambique

Africa

MBA

Mombasa, Kenya

Africa

NBO

Nairobi, Kenya

Africa

ORN

Oran, Algeria

Africa

OUA

Ouagadougou, Burkina Faso

Africa

MRU

Port Louis, Mauritius

Africa

RUN

Saint-Denis, Réunion

Africa

TUN

Tunis, Tunisia

Africa

WDH

Windhoek, Namibia

Africa

ASK

Yamoussoukro, Ivory Coast

Africa

AGR

Agra, India

Asia

AMD

Ahmedabad, India

Asia

AKX

Aktobe, Kazakhstan

Asia

ALA

Almaty, Kazakhstan

Asia

NQZ

Astana, Kazakhstan

Asia

BWN

Bandar Seri Begawan, Brunei

Asia

BLR

Bangalore, India

Asia

BKK

Bangkok, Thailand

Asia

XIY

Baoji, China

Asia

BHY

Beihai, China

Asia

BBI

Bhubaneswar, India

Asia

FRU

Bishkek, Kyrgyzstan

Asia

CGY

Cagayan de Oro, Philippines

Asia

CEB

Cebu, Philippines

Asia

IXC

Chandigarh, India

Asia

CGD

Changde, China

Asia

CSX

Changsha, China

Asia

CZX

Changzhou, China

Asia

CTU

Chengdu, China

Asia

MAA

Chennai, India

Asia

CNX

Chiang Mai, Thailand

Asia

CGP

Chittagong, Bangladesh

Asia

CKG

Chongqing, China

Asia

CJB

Coimbatore, India

Asia

CMB

Colombo, Sri Lanka

Asia

DAD

Da Nang, Vietnam

Asia

DLC

Dalian, China

Asia

DPS

Denpasar, Indonesia

Asia

DAC

Dhaka, Bangladesh

Asia

FUO

Foshan, China

Asia

FUK

Fukuoka, Japan

Asia

FOC

Fuzhou, China

Asia

CAN

Guangzhou, China

Asia

KWE

Guiyang, China

Asia

HAK

Haikou, China

Asia

HAN

Hanoi, Vietnam

Asia

SJW

Hengshui, China

Asia

SGN

Ho Chi Minh City, Vietnam

Asia

HKG

Hong Kong

Asia

HYD

Hyderabad, India

Asia

ISB

Islamabad, Pakistan

Asia

CGK

Jakarta, Indonesia

Asia

JXG

Jiaxing, China

Asia

TNA

Jinan, China

Asia

CNN

Kannur, India

Asia

KNU

Kanpur, India

Asia

KHH

Kaohsiung City

Asia

KHI

Karachi, Pakistan

Asia

KTM

Kathmandu, Nepal

Asia

COK

Kochi, India

Asia

CCU

Kolkata, India

Asia

KJA

Krasnoyarsk, Russia

Asia

KUL

Kuala Lumpur, Malaysia

Asia

KCH

Kuching, Malaysia

Asia

KMG

Kunming, China

Asia

LHE

Lahore, Pakistan

Asia

PKX

Langfang, China

Asia

LYA

Luoyang, China

Asia

MFM

Macau

Asia

MLG

Malang, Indonesia

Asia

MLE

Malé, Maldives

Asia

MNL

Manila, Philippines

Asia

BOM

Mumbai, India

Asia

NAG

Nagpur, India

Asia

OKA

Naha, Japan

Asia

DEL

New Delhi, India

Asia

KIX

Osaka, Japan

Asia

PAT

Patna, India

Asia

PNH

Phnom Penh, Cambodia

Asia

PNQ

Pune, India

Asia

TAO

Qingdao, China

Asia

JRG

Sambalpur, India

Asia

ICN

Seoul, South Korea

Asia

SHA

Shanghai, China

Asia

HGH

Shaoxing, China

Asia

SZX

Shenzhen, China

Asia

SIN

Singapore, Singapore

Asia

URT

Surat Thani, Thailand

Asia

TPE

Taipei

Asia

HYN

Taizhou, China

Asia

CRK

Tarlac City, Philippines

Asia

PBH

Thimphu, Bhutan

Asia

NRT

Tokyo, Japan

Asia

TEN

Tongren, China

Asia

ULN

Ulaanbaatar, Mongolia

Asia

VTE

Vientiane, Laos

Asia

XFN

Xiangyang, China

Asia

ACX

Xingyi, China

Asia

KHN

Xinyu, China

Asia

TYN

Yangquan, China

Asia

EVN

Yerevan, Armenia

Asia

JOG

Yogyakarta, Indonesia

Asia

CGO

Zhengzhou, China

Asia

AMS

Amsterdam, Netherlands

Europe

ATH

Athens, Greece

Europe

BCN

Barcelona, Spain

Europe

BEG

Belgrade, Serbia

Europe

TXL

Berlin, Germany

Europe

BOD

Bordeaux, France

Europe

BTS

Bratislava, Slovakia

Europe

BRU

Brussels, Belgium

Europe

OTP

Bucharest, Romania

Europe

BUD

Budapest, Hungary

Europe

KIV

Chișinău, Moldova

Europe

CPH

Copenhagen, Denmark

Europe

DUB

Dublin, Ireland

Europe

DUS

Düsseldorf, Germany

Europe

FRA

Frankfurt, Germany

Europe

GVA

Geneva, Switzerland

Europe

GOT

Gothenburg, Sweden

Europe

HAM

Hamburg, Germany

Europe

HEL

Helsinki, Finland

Europe

IST

Istanbul, Turkey

Europe

ADB

Izmir, Turkey

Europe

KBP

Kyiv, Ukraine

Europe

LIS

Lisbon, Portugal

Europe

LJU

Ljubljana, Slovenia

Europe

LHR

London, United Kingdom

Europe

LUX

Luxembourg City, Luxembourg

Europe

LYS

Lyon, France

Europe

MAD

Madrid, Spain

Europe

MAN

Manchester, United Kingdom

Europe

MRS

Marseille, France

Europe

MXP

Milan, Italy

Europe

MSQ

Minsk, Belarus

Europe

DME

Moscow, Russia

Europe

MUC

Munich, Germany

Europe

LCA

Nicosia, Cyprus

Europe

OSL

Oslo, Norway

Europe

PMO

Palermo, Italy

Europe

CDG

Paris, France

Europe

PRG

Prague, Czech Republic

Europe

KEF

Reykjavík, Iceland

Europe

RIX

Riga, Latvia

Europe

FCO

Rome, Italy

Europe

LED

Saint Petersburg, Russia

Europe

MLA

Santa Venera, Malta

Europe

SKP

Skopje, North Macedonia

Europe

SOF

Sofia, Bulgaria

Europe

ARN

Stockholm, Sweden

Europe

STR

Stuttgart, Germany

Europe

TLL

Tallinn, Estonia

Europe

TBS

Tbilisi, Georgia

Europe

SKG

Thessaloniki, Greece

Europe

TIA

Tirana, Albania

Europe

VIE

Vienna, Austria

Europe

VNO

Vilnius, Lithuania

Europe

WAW

Warsaw, Poland

Europe

WRO

Wroclaw, Poland

Europe

ZAG

Zagreb, Croatia

Europe

ZRH

Zurich, Switzerland

Europe

QWJ

Americana, Brazil

Latin America & the Caribbean

ARU

Aracatuba, Brazil

Latin America & the Caribbean

ARI

Arica, Chile

Latin America & the Caribbean

ASU

Asunción, Paraguay

Latin America & the Caribbean

BAQ

Barranquilla, Colombia

Latin America & the Caribbean

BEL

Belém, Brazil

Latin America & the Caribbean

CNF

Belo Horizonte, Brazil

Latin America & the Caribbean

BOG

Bogotá, Colombia

Latin America & the Caribbean

BSB

Brasilia, Brazil

Latin America & the Caribbean

BGI

Bridgetown, Barbados

Latin America & the Caribbean

EZE

Buenos Aires, Argentina

Latin America & the Caribbean

CFC

Caçador, Brazil

Latin America & the Caribbean

CLO

Cali, Colombia

Latin America & the Caribbean

VCP

Campinas, Brazil

Latin America & the Caribbean

CAW

Campos dos Goytacazes, Brazil

Latin America & the Caribbean

XAP

Chapeco, Brazil

Latin America & the Caribbean

COR

Córdoba, Argentina

Latin America & the Caribbean

CGB

Cuiaba, Brazil

Latin America & the Caribbean

CWB

Curitiba, Brazil

Latin America & the Caribbean

FLN

Florianopolis, Brazil

Latin America & the Caribbean

FOR

Fortaleza, Brazil

Latin America & the Caribbean

GEO

Georgetown, Guyana

Latin America & the Caribbean

GYN

Goiânia, Brazil

Latin America & the Caribbean

GUA

Guatemala City, Guatemala

Latin America & the Caribbean

GYE

Guayaquil, Ecuador

Latin America & the Caribbean

JOI

Joinville, Brazil

Latin America & the Caribbean

JDO

Juazeiro do Norte, Brazil

Latin America & the Caribbean

LPB

La Paz, Bolivia

Latin America & the Caribbean

LIM

Lima, Peru

Latin America & the Caribbean

MAO

Manaus, Brazil

Latin America & the Caribbean

MDE

Medellín, Colombia

Latin America & the Caribbean

NQN

Neuquén, Argentina

Latin America & the Caribbean

PMW

Palmas, Brazil

Latin America & the Caribbean

PTY

Panama City, Panama

Latin America & the Caribbean

PBM

Paramaribo, Suriname

Latin America & the Caribbean

POS

Port of Spain, Trinidad and Tobago

Latin America & the Caribbean

POA

Porto Alegre, Brazil

Latin America & the Caribbean

UIO

Quito, Ecuador

Latin America & the Caribbean

REC

Recife, Brazil

Latin America & the Caribbean

RAO

Ribeirao Preto, Brazil

Latin America & the Caribbean

GIG

Rio de Janeiro, Brazil

Latin America & the Caribbean

SSA

Salvador, Brazil

Latin America & the Caribbean

SJO

San José, Costa Rica

Latin America & the Caribbean

SJU

San Juan, Puerto Rico

Latin America & the Caribbean

SAP

San Pedro Sula, Honduras

Latin America & the Caribbean

STI

Santiago de los Caballeros, Dominican Republic

Latin America & the Caribbean

SCL

Santiago, Chile

Latin America & the Caribbean

SDQ

Santo Domingo, Dominican Republic

Latin America & the Caribbean

SJP

São José do Rio Preto, Brazil

Latin America & the Caribbean

SJK

São José dos Campos, Brazil

Latin America & the Caribbean

GRU

São Paulo, Brazil

Latin America & the Caribbean

SOD

Sorocaba, Brazil

Latin America & the Caribbean

GND

St. George's, Grenada

Latin America & the Caribbean

TGU

Tegucigalpa, Honduras

Latin America & the Caribbean

NVT

Timbó, Brazil

Latin America & the Caribbean

UDI

Uberlândia, Brazil

Latin America & the Caribbean

VIX

Vitoria, Brazil

Latin America & the Caribbean

AMM

Amman, Jordan

Middle East

LLK

Astara, Azerbaijan

Middle East

BGW

Baghdad, Iraq

Middle East

GYD

Baku, Azerbaijan

Middle East

BSR

Basra, Iraq

Middle East

BEY

Beirut, Lebanon

Middle East

DMM

Dammam, Saudi Arabia

Middle East

DOH

Doha, Qatar

Middle East

DXB

Dubai, United Arab Emirates

Middle East

EBL

Erbil, Iraq

Middle East

HFA

Haifa, Israel

Middle East

JED

Jeddah, Saudi Arabia

Middle East

KWI

Kuwait City, Kuwait

Middle East

BAH

Manama, Bahrain

Middle East

MCT

Muscat, Oman

Middle East

NJF

Najaf, Iraq

Middle East

XNH

Nasiriyah, Iraq

Middle East

ZDM

Ramallah

Middle East

RUH

Riyadh, Saudi Arabia

Middle East

ISU

Sulaymaniyah, Iraq

Middle East

TLV

Tel Aviv, Israel

Middle East

ABQ

Albuquerque, NM, United States

North America

ANC

Anchorage, AK, United States

North America

IAD

Ashburn, VA, United States

North America

ATL

Atlanta, GA, United States

North America

AUS

Austin, TX, United States

North America

BGR

Bangor, ME, United States

North America

BOS

Boston, MA, United States

North America

BUF

Buffalo, NY, United States

North America

YYC

Calgary, AB, Canada

North America

CLT

Charlotte, NC, United States

North America

ORD

Chicago, IL, United States

North America

CVG

Cincinnati, United States

North America

CLE

Cleveland, OH, United States

North America

CMH

Columbus, OH, United States

North America

DFW

Dallas, TX, United States

North America

DEN

Denver, CO, United States

North America

DTW

Detroit, MI, United States

North America

RDU

Durham, NC, United States

North America

GDL

Guadalajara, Mexico

North America

YHZ

Halifax, Canada

North America

HNL

Honolulu, HI, United States

North America

IAH

Houston, TX, United States

North America

IND

Indianapolis, IN, United States

North America

JAX

Jacksonville, FL, United States

North America

MCI

Kansas City, MO, United States

North America

KIN

Kingston, Jamaica

North America

LAS

Las Vegas, NV, United States

North America

LAX

Los Angeles, CA, United States

North America

MEM

Memphis, TN, United States

North America

MEX

Mexico City, Mexico

North America

MIA

Miami, FL, United States

North America

MSP

Minneapolis, MN, United States

North America

YUL

Montréal, QC, Canada

North America

BNA

Nashville, United States

North America

EWR

Newark, NJ, United States

North America

ORF

Norfolk, VA, United States

North America

OKC

Oklahoma City, OK, United States

North America

OMA

Omaha, NE, United States

North America

PHL

Philadelphia, United States

North America

PHX

Phoenix, AZ, United States

North America

PIT

Pittsburgh, PA, United States

North America

PDX

Portland, OR, United States

North America

QRO

Queretaro, MX, Mexico

North America

RIC

Richmond, VA, United States

North America

SMF

Sacramento, CA, United States

North America

SLC

Salt Lake City, UT, United States

North America

SAT

San Antonio, TX, United States

North America

SAN

San Diego, CA, United States

North America

SFO

San Francisco, CA, United States

North America

SJC

San Jose, CA, United States

North America

YXE

Saskatoon, SK, Canada

North America

SEA

Seattle, WA, United States

North America

FSD

Sioux Falls, SD, United States

North America

STL

St. Louis, MO, United States

North America

TLH

Tallahassee, FL, United States

North America

TPA

Tampa, FL, United States

North America

YYZ

Toronto, ON, Canada

North America

YVR

Vancouver, BC, Canada

North America

YWG

Winnipeg, MB, Canada

North America

ADL

Adelaide, SA, Australia

Oceania

AKL

Auckland, New Zealand

Oceania

BNE

Brisbane, QLD, Australia

Oceania

CBR

Canberra, ACT, Australia

Oceania

CHC

Christchurch, New Zealand

Oceania

GUM

Hagatna, Guam

Oceania

HBA

Hobart, Australia

Oceania

MEL

Melbourne, VIC, Australia

Oceania

NOU

Noumea, New Caledonia

Oceania

PER

Perth, WA, Australia

Oceania

SUV

Suva, Fiji

Oceania

SYD

Sydney, NSW, Australia

Oceania

PPT

Tahiti, French Polynesia

Oceania

WLG

Wellington, New Zealand

Oceania

What the colo code tells you

Every response that passes through Cloudflare carries a cf-ray header like 8f1a2b3c4d5e-FRA. The suffix is the colo — the data center that handled your request, named after the IATA code of the nearest airport. You can also open /cdn-cgi/trace on any Cloudflare-proxied site and read the colo= field.

Why this list matters for caching

Cloudflare doesn't run one cache — it runs 336 independent ones. A page cached in Frankfurt is still cold in Singapore, São Paulo and Sydney. Which colo a visitor hits depends on their location and network routing, so your real-world cache hit ratio is decided per location:

Check a URL per location: our free cache checker requests any URL from six locations at once and shows the cache status and colo per check.
Understand the statuses: every cf-cache-status value explained.
Keep every colo warm: warmup.rocks requests your pages from 90+ edge locations on a schedule and reports the hit ratio per colo after every run.

FAQ

What is a Cloudflare colo?

A colo (colocation) is one of Cloudflare's data centers. Each runs its own independent cache. The colo that served your request appears as a three-letter IATA code in the cf-ray response header.

How do I find out which data center serves me?

Open /cdn-cgi/trace on any Cloudflare-proxied site — the colo field shows your data center. Or check the cf-ray header in DevTools.

Why airport codes?

IATA codes are short, unique and globally understood — FRA for Frankfurt, IAD for Washington-Dulles/Ashburn, SIN for Singapore. The industry has used them for edge locations since the early CDN days.

Is this list official?

It's generated from Cloudflare's official public status page on every deploy, so it tracks the live network. Cloudflare itself publishes the city list at cloudflare.com/network.

One cache per data center — keep them all warm

warmup.rocks requests your pages from 90+ edge locations on a schedule and shows the hit ratio per colo, per run.

Start your 7-day free trial