asn.dev

Autonomous system

AS55291 HARRIS-COUNTY-AS - Harris County

Unclassified ARIN

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Harris County

United States of America · AI-generated

government municipal texas houston

The AS handle HARRIS-COUNTY-AS is held by Harris County, the government of a major county in Texas, USA.

What it's used for

  • The address space carries municipal government infrastructure, evidenced by the netname HARRIS-COUNTY-NETWORK and the reverse DNS record filexfr.hcpid.org (Harris County Public Information Division).
  • The AS announces 1280 IPv4 addresses across 2 prefixes and maintains 2 observed routing neighbours, a ratio consistent with a small, self-contained internal network rather than a transit or large access provider.
  • Traffic from this AS consists of internal government services, including public information systems and administrative endpoints for the county's operations.

Notable

  • Registrants align with the announcer, listing "Harris County" for the primary block and "Harris County ITC" for the secondary block.
  • The inventory consists of two distinct IPv4 prefixes: a /22 block and a /24 block, with no IPv6 prefixes announced.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS33662Comcast Cable Communications, LLC51
AS22442Phonoscope, Inc.11

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, 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 · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS55291
Registry name
HARRIS-COUNTY-AS
Registrant
Harris County
Abuse contact
daniel.merkel@harriscountytx.gov
Registered
2013-05-17
Last changed
2013-05-17
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS55291
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
8 naming AS55291

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: 447 networks and 1,843 prefixes, as published 2026-11-02. 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