Ohio · network infrastructure

Ohio spreads its facilities over 25 cities, but the network counts gather in Columbus. Cologix runs the three densest sites there, COL1 with 30 networks, COL2 with 25 and COL3 with 21, and Ohio IX in the same city has 53 participants. H5 Data Centers Cleveland holds 20 networks and CyrusOne Cincinnati 7th Street eight. Most of the remaining facilities carry five networks or fewer, which is how 60 buildings add up to 209 network presences.

An Ohio address in a geolocation database comes from the record the operator published for that block, not from any measurement of the device using it. Mobile networks route subscribers through regional gateways, so a phone in Akron or Cincinnati can present an address a lookup places in Columbus, or in another state entirely. AT&T, T-Mobile and Verizon each announce mobile traffic from several ASNs, among them AS27522 and AS16586, and those announcements do not stop at the state line.

Check the origin ASN and the netname on the exact prefix instead of trusting the city a lookup prints. A block announced by a network with a presence in the Columbus or Cleveland facilities has a clearer regional claim than one a database files under Ohio by default. The snapshot counts 62 networks peering in the state, nearly all of them at Ohio IX, so local interconnection is easier to verify here than in states with no exchange.