Quick answer
Which city has the most datacenters?
In PeeringDB on 19 October 2026, New York and London tied with 82 colocation facilities within 40 km of the city centre, followed by Paris (76), Ashburn (71) and São Paulo (66). By connected networks, IX.br São Paulo (1,869) led, ahead of DE-CIX Frankfurt (1,019). RackProxies rents datacenter IPs in these cities from $1.29 per IP for 30 days; no KYC, crypto only.
What does this dataset cover?
| Cities | 34 datacenter cities in 20 countries (Singapore and Hong Kong are covered on country pages) |
|---|---|
| Source | PeeringDB public API: facility records (5,885) and internet exchange records (1,330) |
| Date read | 19 October 2026 |
| Facility count | PeeringDB facilities whose coordinates are within 40 km of the city centre |
| Exchange match | Exchanges whose PeeringDB city name matches the city or its datacenter suburbs |
| Networks | PeeringDB "net_count": networks that list themselves at an exchange or facility |
| Reuse | Quote the figures with a link to this page; the underlying records belong to PeeringDB |
How do the 34 datacenter cities rank?
Sorted by colocation facilities within 40 km. "Top operator" is the organisation with the most facility records in that radius; "largest exchange" is the exchange with the most connected networks.
| City | Country | Facilities ≤ 40 km | Operators | Top operator (facilities) | Exchanges | Largest exchange (networks) |
|---|---|---|---|---|---|---|
| New York | United States | 82 | 42 | Digital Realty (6) | 10 | DE-CIX New York (263) |
| London | United Kingdom | 82 | 46 | Digital Realty (10) | 14 | LINX LON1 (834) |
| Paris | France | 76 | 41 | Digital Realty (9) | 11 | France-IX Paris (454) |
| Ashburn | United States | 71 | 31 | Digital Realty (15) | 11 | Equinix Ashburn (345) |
| São Paulo | Brazil | 66 | 45 | Scala Data Centers (8) | 5 | IX.br (PTT.br) São Paulo (1,869) |
| Amsterdam | Netherlands | 64 | 41 | Equinix (8) | 23 | AMS-IX (856) |
| Chicago | United States | 62 | 33 | Digital Realty (9) | 13 | Equinix Chicago (254) |
| Silicon Valley | United States | 57 | 27 | Digital Realty (11) | 15 | EVIX (185) |
| Dallas | United States | 53 | 26 | Equinix (8) | 10 | Equinix Dallas (209) |
| Frankfurt | Germany | 53 | 33 | Equinix (6) | 21 | DE-CIX Frankfurt (1,019) |
| Mumbai | India | 49 | 26 | NTTCINS (7) | 10 | DE-CIX Mumbai (452) |
| Toronto | Canada | 44 | 21 | Equinix (6) | 8 | TorIX (233) |
| Los Angeles | United States | 43 | 29 | Colocation America (5) | 6 | Any2West (264) |
| Atlanta | United States | 40 | 22 | Coloblox Data Centers (3) | 6 | Digital Realty Atlanta (146) |
| Sydney | Australia | 39 | 19 | Equinix (5) | 7 | MegaIX Sydney (229) |
| Tokyo | Japan | 38 | 11 | Equinix (10) | 11 | BBIX Tokyo (355) |
| Seattle | United States | 35 | 23 | Digital Fortress (3) | 5 | SIX Seattle (370) |
| Montreal | Canada | 35 | 16 | Cologix (11) | 4 | CANIX Montreal (81) |
| Zurich | Switzerland | 34 | 25 | CKW Fiber Services (4) | 9 | 4b42 Internet Exchange Point (279) |
| Seoul | South Korea | 33 | 16 | kt cloud (7) | 8 | KINX (91) |
| Madrid | Spain | 31 | 24 | Digital Realty (3) | 7 | DE-CIX Madrid (188) |
| Vienna | Austria | 30 | 25 | Raiffeisen Informatik (3) | 2 | VIX (174) |
| Denver | United States | 28 | 16 | DataBank (5) | 5 | IX-Denver (91) |
| Stockholm | Sweden | 27 | 16 | AB Stokab (4) | 11 | Netnod Stockholm GREEN -- MTU1500 (188) |
| Phoenix | United States | 25 | 18 | DataBank (3) | 7 | Ninja-IX Phoenix (58) |
| Miami | United States | 24 | 18 | Equinix (3) | 9 | FL-IX (196) |
| Warsaw | Poland | 24 | 13 | Netia (4) | 7 | EPIX.Warszawa (381) |
| Milan | Italy | 23 | 18 | Equinix (4) | 4 | MIX-IT (403) |
| Dublin | Ireland | 21 | 13 | Digital Realty (4) | 4 | INEX LAN1 (107) |
| Manchester | United Kingdom | 20 | 13 | Equinix (4) | 2 | LINX Manchester (135) |
| Melbourne | Australia | 20 | 12 | Vocus Group (4) | 6 | MegaIX Melbourne (135) |
| Johannesburg | South Africa | 14 | 11 | Africa Data Centres (2) | 5 | NAPAfrica IX Johannesburg (544) |
| Osaka | Japan | 12 | 6 | NTT DOCOMO BUSINESS (3) | 6 | BBIX Osaka (129) |
| Dubai | United Arab Emirates | 7 | 3 | Equinix (3) | 2 | UAE-IX (105) |
Prices checked on
What stands out in the data?
- Size is not connectivity. São Paulo has fewer facilities than New York, but its exchange, IX.br, has more connected networks (1,869) than any other exchange in the data. Brazil's NIC.br runs IX.br as a non-profit, and Brazilian regional ISPs connect to it in large numbers.
- Europe has the densest exchanges. DE-CIX Frankfurt (1,019 networks), AMS-IX in Amsterdam (856) and LINX LON1 in London (834) are each larger than any US exchange in the data; the largest US one is SIX Seattle (370).
- US hubs spread networks across buildings. Ashburn's Equinix campus alone counts 523 networks present, but they connect through several exchanges rather than one dominant platform.
- Some markets are thin in PeeringDB. Dubai shows 7 facilities and Johannesburg 14, yet NAPAfrica Johannesburg connects 544 networks: one large campus can matter more than many buildings.
How was the ranking built?
We downloaded every facility and exchange record from the public PeeringDB API on 19 October 2026 and kept the records of the 34 cities that have a page on RackProxies. A facility counts for a city when its latitude and longitude lie within 40 km of the city centre (great-circle distance). Operator names were shortened (for example "Equinix, Inc." to "Equinix").
Limits: PeeringDB lists only facilities and exchanges that operators registered; some campuses register each building, others one record; and "networks" counts self-declared presence, not traffic. Treat the figures as a consistent comparison, not as a census. The per-city pages, such as Frankfurt or Ashburn, add operators, buildings and distances.
What do people ask about datacenter cities?
What is the largest internet exchange by networks?
In this dataset, IX.br São Paulo, with 1,869 connected networks in PeeringDB on 19 October 2026. In Europe, DE-CIX Frankfurt led with 1,019. Exchange operators also publish traffic peaks, which rank differently.
Why is Ashburn called Data Center Alley?
Loudoun County, Virginia, markets the Ashburn area as "Data Center Alley" because of its concentration of datacenter campuses. PeeringDB lists 71 facilities within 40 km of Ashburn, run by 31 operators.
Does a bigger datacenter city mean a faster proxy?
Not by itself. Speed to a target depends on distance and on the route between the networks. A city with a large exchange gives more chances of a short local path, but the route depends on the network that holds the IP.
Can I reuse these figures?
Yes: quote them with a link to this page and the date. The records come from PeeringDB, whose data is public; check its terms before republishing the raw records.
Where can I rent an IP in these cities?
RackProxies rents dedicated datacenter IPv4 in all 34 cities and in Singapore and Hong Kong, from $1.29 per IP for 30 days as of October 2026. Availability varies; the checkout shows what is online. No KYC: pay in crypto.
Sources (2)
- PeeringDB API: facilities — PeeringDB (2026-10-19)
- PeeringDB API: internet exchanges — PeeringDB (2026-10-19)