AS13628 — CENCORA-INTERNET
AS13628 announces 11 IPv4 prefixes covering 7,936 addresses and 0 IPv6 prefixes.
About this network
The AS handle carries the new corporate name while every address object still carries the old one, and the only reverse name that answers is a test environment.
What it's used for
- A pharmaceutical distributor's network. 7,936 addresses across eleven IPv4 prefixes, eight observed BGP neighbours, and no IPv6 announced.
Notable
- Nine blocks are netname AMERISOURCEBERGEN, the company's former name, in capitals.
- 12.30.173.0/24 is netname AMERISOU44-173, truncating that name to eight characters.
- 66.192.173.0/24 is netname TWTC-NETBLK-4, registered to a transit provider.
- One of eighteen sampled addresses answered, as mpsqa.amerisourcebergen.com.
- First seen in the routing archive on 2002-08-02, an actual date rather than the archive's start.
Interesting
- Two letters at the end of that hostname mark a quality assurance environment, published in public DNS on a routed address. Test systems run older code and looser configuration than production, and naming one is an invitation to look at it first.
- The rebrand reached the AS object and stopped. Address registrations are filed once and edited rarely, so the registry is a reliable record of what a company used to be called.
- Eight upstreams for a distributor is unusual and appropriate. Wholesale pharmaceutical ordering runs to a schedule that pharmacies depend on daily, and paths are cheaper than missed deliveries.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 12.30.173.0/24
- 64.225.248.0/21
- 66.192.173.0/24
- 209.35.120.0/21
- 209.182.160.0/22
- 209.182.164.0/23
- 209.182.166.0/24
- 209.182.169.0/24
- 209.182.170.0/23
- 209.182.172.0/23
- 209.182.174.0/24
Upstream networks
- AS3356 Level 3 Parent, LLC
- AS6461 Zayo Bandwidth
- AS7018 AT&T Enterprises, LLC
- AS32787 Akamai Technologies, Inc.
- AS23550 HUB Advanced Networks, LLC
- AS3257 GTT Communications Inc.
- AS33657 Comcast Cable Communications, LLC
- AS10396 DATACOM CARIBE, INC.
Adjacent networks
BGP / ASN / CIDR
awaiting query
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IPv4
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IPv4 Prefixes
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED