AS15315 — IVANET-CAMBRIDGE-1

AS15315 announces 3 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

Two registries name two different cities for the same network.

What it's used for

• An international voice carrier's network. Three IPv4 prefixes announced from the United States, no IPv6, and three observed BGP neighbours.

Notable

• One registry records the handle as IVANET-LISBON and the other as IVANET-CAMBRIDGE-1, so the same number is filed under two cities on two continents.
• Two netnames share a stem with a three letter code that reads as a third city, one with a counter and one without.
• The third netname is the company name in mixed case with a two letter suffix, the only label here that is not built from the shared stem.
• Every block is registered to a network engineering department rather than to the company itself.
• Nine addresses were queried for reverse DNS and none returned a name.

Interesting

• Two cities in two registries is what happens when a network is operated in one place and administered in another, and neither record is wrong. It is a problem only for anyone trying to geolocate the network from its paperwork.
• The blocks sit in a range normally administered by a different regional registry from the one the announcements come from, which is ordinary for a carrier whose business is carrying calls between continents.
• A department as registrant rather than the company is good operational practice and poor identification: it reaches the right engineers and tells an outsider nothing about who owns the space.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 62.93.148.0/24
• 62.93.150.0/24
• 62.93.156.0/23

Upstream networks

• AS3257 GTT Communications Inc.
• AS8657 SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.

Adjacent networks

• AS3257 GTT Communications Inc.
• AS8657 SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.