asn.dev

Autonomous system

AS19050 TIC-DHHS-INTERIOR

Unclassified ARIN

IPv4 addresses 2.56K 9 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 7 downstream
Flagged prefixes 0 none

Summary

U.S. Department of Health & Human Services

United States of America · AI-generated

government healthcare enterprise internal

TIC-DHHS-INTERIOR is operated by the U.S. Department of Health & Human Services.

What it's used for

  • The address space carries internal government infrastructure, evidenced by netnames UDHHS-4, NET-HHS2, CMSNET, and NET-HHS5, and reverse DNS entries pointing to net.nih.gov hosts such as bth-tic-edge-rt-a-lo0.net.nih.gov and cul-tic-cms-pe-b.net.nih.gov.
  • The AS announces 2560 IPv4 addresses across 9 prefixes and 3 IPv6 prefixes, with 8 observed neighbours; this ratio of moderate address space against a low neighbour count indicates an internal corporate estate rather than a transit or access network.

Notable

  • All registrants align with the announcer, consistently identifying the U.S. Department of Health & Human Services, with specific sub-registrants including CMS IT Service Desk and Abuse contacts.
  • The inventory is finely subdivided into multiple /24 and /23 blocks, reflecting site-by-site segmentation typical of a large federal agency's internal network.

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, 7 downstream and 14 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15029U.S. Department of Health & Human Services699

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 9 prefixes · 2.56K addresses IPv6 3 prefixes

CountryNamePrefixes
USUnited States of America12

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS19050
Registry name
TIC-DHHS-INTERIOR
Registrant
U.S. Department of Health & Human Services
Abuse contact
citnsarin@mail.nih.gov
Registered
2012-10-03
Last changed
2012-10-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
38% valid · 5 valid, 8 with no ROA
ROAs
6 authorising AS19050
ASPA
no ASPA record
IRR
38% registered · 5 of 13 announcements
Route objects
6 naming AS19050

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: 442 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