AS14893 — CHS-MI

AS14893 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

A netname that marks this block as the primary, which tells you there is a second one.

What it's used for

• A hospital's network. 1,024 addresses in a single IPv4 prefix, with two observed BGP neighbours and no IPv6 announced.

Notable

• The whole footprint is 205.141.232.0/22, carrying the netname SAGINAW-PRIMARY.
• That netname names the city the hospital serves and the role the block plays.
• The AS handle is CHS-MI, initials of a health system followed by a state abbreviation, while the registrant names a single medical centre.
• Three addresses were queried for reverse DNS and none returned a name.

Interesting

• Calling a block primary only makes sense in contrast to something else. Whatever the secondary is, it is either not announced here or lives under a different number, and the registry preserves half of a pairing the way it so often does.
• The handle and the registrant sit at different levels of the same organisation: a group covering a state, and one hospital within it. Health systems merge constantly, and the fields update at different times, so reading both together shows where this hospital sat when each was filed.
• Two upstreams is the right answer for a hospital. Clinical systems that stop reaching outside services do not simply inconvenience people.
• Publishing nothing in reverse DNS is appropriate for an organisation holding patient records, with everything the public touches reached through names held elsewhere.

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

Announced prefixes

• 205.141.232.0/22

Upstream networks

• AS30517 Great Lakes Comnet, Inc.
• AS22974 Charter Communications LLC

Adjacent networks

• AS30517 Great Lakes Comnet, Inc.
• AS22974 Charter Communications LLC

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-13986, AS-18474, AS-30517-ASSOCIATED, AS-CHTR-BB, AS-HURRICANE, AS-PNAPBOS, AS-PNAPBSN, AS-RR-SYNC, AS-WINDSTREAM-CUST.