AS15081 — OMNI-FIBER

Network type: residential

AS15081 announces 14 IPv4 prefixes covering 88,320 addresses and 1 IPv6 prefixes.

About this network

Fifty-three prefixes, four upstreams, and a netname that names a parent it does not fit.

What it's used for

• A fibre internet provider's network. Fifty-three IPv4 prefixes and one IPv6 /32 announced from the United States, with four observed BGP neighbours.

Notable

• The netname 38-194-128-0-1 appears on two different blocks, neither of which is the address it names, and its trailing digit is not a prefix length.
• Other blocks use OMNIFIBER-CGNT-NET-1 and OMNIFIBER-CGNT-NET-4, an abbreviation of the upstream carrier sitting inside the operator's own name, plus OFL-62 and the bare word CROSNET.
• Two registry lookups failed, so those blocks' ownership is unknown rather than absent.
• Eight of eighteen sampled addresses answered, all in one uniform form, 38-194-136-0-dhcp.omnifibernet.net, with the service marker after the address rather than before.

Interesting

• A netname naming a range rather than the block that carries it is the same defect seen elsewhere in this range, and it is why netnames should never be trusted to describe the prefix they sit on.
• CROSNET is the outlier: a word that is not this operator's name and carries no counter. That is what an acquired network's identifier looks like after the acquisition, kept because renaming a registry object gains nothing.
• Putting the service marker at the end of the label is unusual. The common convention leads with it, and the difference matters to anything matching names by prefix rather than by suffix.
• Ninety thousand addresses behind four upstreams is a large network on thin transit, and the single IPv6 allocation covers all of it.

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

Announced prefixes

• 38.179.0.0/19
• 38.179.32.0/20
• 38.194.96.0/19
• 38.194.128.0/18
• 64.52.192.0/20
• 64.52.224.0/19
• 96.43.192.0/19
• 149.120.96.0/19
• 168.75.176.0/20
• 198.34.0.0/19
• 198.34.32.0/20
• 198.34.56.0/21
• 198.101.48.0/20
• 207.174.115.0/24
• 2606:c040::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS20205 Amplex Electric, Inc.
• AS2707 First Communications LLC

Adjacent networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS20205 Amplex Electric, Inc.
• AS2707 First Communications LLC

Internet exchanges

• Detroit Internet Exchange — Detroit, United States
• Ohio IX — Columbus, United States
• Pittsburgh Internet Exchange — Pittsburgh, United States