Autonomous system
AS30313 IRS - Internal Revenue Service
Unclassified ARIN
Summary
Internal Revenue Service
government treasury tax us
The AS handle IRS is held by the Internal Revenue Service.
What it's used for
- The address space carries the operational network of the U.S. federal tax authority, identified by the netname
IRSNETon both announced IPv4 blocks. - The AS announces 8,192 IPv4 addresses across 2 prefixes and 36 IPv6 prefixes, while maintaining only 1 observed neighbour, indicating a self-contained government network rather than a transit or access provider.
Notable
- Registrants for both IPv4 prefixes are listed as
Internal Revenue Service, matching the AS holder and confirming direct ownership of the address space. - The inventory consists of two contiguous /20 IPv4 blocks and a large, finely subdivided IPv6 allocation under 2610:30::/35, reflecting a structured internal corporate estate.
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
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 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2386 | AT&T Enterprises, LLC | 908 |
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
IPv4 2 prefixes · 8.19K addresses IPv6 36 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 38 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS30313- Registry name
- IRS
- Registrant
- Internal Revenue Service
- Abuse contact
- abuse@irs.gov
- Registered
- 2003-09-05
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 17 valid, 0 with no ROA
- ROAs
- 18 authorising AS30313
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 19 naming AS30313
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: 449 networks and 1,846 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