asn.dev

Autonomous system

AS13930 CMH

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

The Children's Mercy Hospital

United States · AI-generated

business enterprise

A three-letter handle, a single block, and a netname that promised a second one.

What it's used for

  • A children's hospital's network. 256 addresses in a single IPv4 prefix, one observed BGP neighbour, and no IPv6 announced.

Notable

  • The block is 199.242.168.0/24, netname CMH-BLK-1, registered to The Children's Mercy Hospital.
  • The AS handle is the same three letters.
  • Three addresses were queried for reverse DNS and none returned a name.

Interesting

  • Three-letter handles were first come, first served, and the ones worth having went early. Those initials belong to a great many organisations and an airport besides, so anyone searching the registry by them finds this hospital only by knowing the number already.
  • The -1 on the netname is a counter that stopped at one. Every registry is full of them: the field is filled in expecting growth, the growth goes elsewhere, and the suffix is left describing a series with one member.
  • A /24 behind one upstream is the smallest a network gets while still holding its own space. For an institution whose systems are reached from inside the building, the addresses matter more for what they let in than for what they publish.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS11320LightEdge Solutions65

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13930
Registry name
CMH
Registrant
The Children's Mercy Hospital
Abuse contact
noc@cmh.edu
Registered
2012-04-13
Last changed
2012-04-13
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS13930
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS13930

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,784 prefixes, as published 2026-10-19. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check