AS14762 — AMGEN

AS14762 announces 12 IPv4 prefixes covering 5,120 addresses and 0 IPv6 prefixes.

About this network

Eleven blocks, one netname, and the only two hostnames that answer are a mail discovery endpoint and a development server.

What it's used for

• A biotechnology company's corporate network. 4,864 addresses across 11 IPv4 prefixes, with six observed BGP neighbours and no IPv6 announced.

Notable

• All 11 blocks carry the netname AMGEN, registered to AMGEN, Inc., with no numbering or variation between them.
• Two of eighteen sampled addresses returned names: msautodiscover.amgen.com and crisfoundationdev.amgen.com.

Interesting

• A single unvaried netname across eleven separately announced blocks is unusual discipline. Most estates this size accumulate suffixes, dates and half-remembered project names; this one was filed by somebody who decided the company name was sufficient and then held the line.
• The two hostnames that do answer are the two most interesting kinds. One is the endpoint mail clients query to configure themselves, which confirms the mail platform in use to anyone who looks. The other ends in the letters that mark a development system, published from the same address space as production.
• Six neighbours for a company that does not sell connectivity means several carriers, which is what research and manufacturing sites in different regions each buying local transit looks like from outside.
• Address blocks scattered across three unrelated ranges, all under one name, trace a company that kept buying small allocations rather than renumbering into one.

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

Announced prefixes

• 138.133.25.0/24
• 138.133.52.0/24
• 138.133.60.0/23
• 138.133.177.0/24
• 138.133.183.0/24
• 138.133.192.0/24
• 138.133.194.0/24
• 138.133.232.0/22
• 192.207.147.0/24
• 198.176.188.0/22
• 198.178.218.0/23
• 198.178.220.0/24

Upstream networks

• AS202 Level 3 Parent, LLC
• AS44735 Nova hf
• AS174 Cogent Communications, LLC
• AS9583 Sify Limited
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS23005 SWITCH, LTD

Adjacent networks

• AS202 Level 3 Parent, LLC
• AS44735 Nova hf
• AS174 Cogent Communications, LLC
• AS9583 Sify Limited
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS23005 SWITCH, LTD