asn.dev

Autonomous system

AS39983 PBGC-HQ-AS

Unclassified ARIN

IPv4 addresses 512 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

Pension Benefit Guaranty Corporation

United States of America · AI-generated

government corporate infrastructure

The AS handle PBGC-HQ-AS is held by Pension Benefit Guaranty Corporation.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by the netname PBGC-DMZ-NETWORKS and the registrant PBGC Infrastructure Operations.
  • The AS announces 512 IPv4 addresses within a single prefix (208.68.128.0/23) and maintains 2 observed neighbours, a ratio consistent with a small, self-contained government network rather than a transit or access provider.
  • Traffic from this AS consists of internal office workers and government systems for the U.S. federal agency that guarantees pension benefits.

Notable

  • The registrant Pension Benefit Guaranty Corp.; PBGC Infrastructure Operations aligns directly with the AS holder and the announced netname.
  • The inventory is a single contiguous /23 block, indicating a compact and stable address allocation for the agency's headquarters and operations.

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
AS6223CenturyLink Communications, LLC61
AS16524MetTel60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS39983
Registry name
PBGC-HQ-AS
Registrant
Pension Benefit Guaranty Corp.
Abuse contact
thorpe.joelle@pbgc.gov
Registered
2006-05-31
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS39983
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS39983

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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