AS30313 — IRS

AS30313 announces 1 IPv4 prefixes covering 8,192 addresses and 5 IPv6 prefixes.

About this network

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 IRSNET on 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.

Announced prefixes

• 152.216.0.0/19
• 2610:30::/32
• 2610:30:e500::/40
• 2610:30:e600::/39
• 2610:30:e800::/37
• 2610:30:f000::/36

Upstream networks

• AS2386 AT&T Enterprises, LLC

Adjacent networks

• AS2386 AT&T Enterprises, LLC