AS15185 — HIBBERT-EAST

AS15185 announces 3 IPv4 prefixes covering 768 addresses and 0 IPv6 prefixes.

About this network

A netname holding two carrier names at once, and reverse names that label the test environment.

What it's used for

• A marketing services company's network. Three IPv4 prefixes announced from the United States, no IPv6, and two observed BGP neighbours.

Notable

• Two of the three blocks are registered to a carrier, not to the holder, with netnames that name the current carrier, mark the entry as legacy, name the company it acquired, add a product word and end in a counter.
• The third block is registered to the holder under a six-letter abbreviation of its own name.
• Four of nine sampled addresses answered. Two are carrier-generated names encoding the address and the product; the other two are functional names under two further domains, neither matching the holder or the carrier.
• Both functional names carry a label marking the host as a testing environment, and one of them names a client brand in front of it.

Interesting

• A netname that stacks a carrier, an acquisition and a product is a record written by a merger. It survives because rewriting it would mean reissuing the assignment, so the acquired brand stays visible in public data long after it left the market.
• Publishing test hosts in reverse DNS hands out a map. Anyone resolving the block learns which addresses run staging systems, which tend to carry weaker credentials and older code. Adding a customer's brand to that label names who is affected.
• Two of three blocks borrowed from a carrier is a small company routing for continuity, not scale.

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

Announced prefixes

• 63.232.248.0/24
• 208.44.95.0/24
• 216.168.131.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS33659 Comcast Cable Communications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS33659 Comcast Cable Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-COMCAST-EDIA.