Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS102

Announcement observedARIN

U.S. National Science Foundation · NSF-HQ-AS

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active9/29/2026, 05:51:38Snapshot expired

View network topology RDAP registration

ASN: AS102
Registration country: United States
Name: U.S. National Science Foundation
Abbreviation: NSF-HQ-AS
Registration date: 3/31/1987, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
128.150.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record
192.12.209.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record
198.181.231.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: U.S. National Science Foundation
RIR: ARIN
Registration country: United States
Registration date: 3/31/1987, 05:00:00
Abuse contact: arin-abuse@nsf.gov

Snapshot trend

9/29/2026, 05:51:383 v41 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn