AS14946 — BMHCC

AS14946 announces 7 IPv4 prefixes covering 65,024 addresses and 0 IPv6 prefixes.

About this network

Ten prefixes that cover the whole range except for one /23-sized hole in the middle of it.

What it's used for

• A hospital system's network. 65,024 addresses across ten IPv4 prefixes, with three observed BGP neighbours and no IPv6 announced.

Notable

• Every record checked carries the netname BMHCC, registered to Baptist Memorial Health Care Corporation, with a networking group as contact.
• All ten prefixes sit inside 167.251, from a /17 down to a /23.
• The announced total is one /23 short of a full sixteen-bit range, and the gap sits between 167.251.32.0/20 and 167.251.50.0/23.
• Eighteen addresses were queried for reverse DNS and none returned a name.
• The registry lookup for 167.251.50.0/23 failed.

Interesting

• The missing piece is the interesting part. Everything either side of the gap is announced, so the hole is not the edge of an allocation: it is a piece of the range that has been carved out, and whatever holds it is not this network. Address space gets lent, sold or simply forgotten in units this small.
• The contact is a department rather than a person, which is what a hospital's registry entry should look like. Staff turn over; the networking group does not.
• Three neighbours across a system spanning several hospitals. Clinical networks buy redundancy at the circuit level rather than by collecting adjacencies.
• Nothing answers a reverse lookup on any address sampled.

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

Announced prefixes

• 167.251.0.0/19
• 167.251.32.0/20
• 167.251.50.0/23
• 167.251.52.0/22
• 167.251.56.0/21
• 167.251.64.0/18
• 167.251.128.0/17

Upstream networks

• AS7018 AT&T Enterprises, LLC
• AS21922 WorldSpice Technologies
• AS11272 C Spire Fiber

Adjacent networks

• AS7018 AT&T Enterprises, LLC
• AS21922 WorldSpice Technologies
• AS11272 C Spire Fiber