Autonomous system profile

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

AS30387

Announcement observedARIN

National Institutes of Health · NIH-NET-NCCS

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

Last active10/2/2026, 07:03:21Snapshot expired

View network topology RDAP registration

ASN: AS30387
Registration country: United States
Name: National Institutes of Health
Abbreviation: NIH-NET-NCCS
Registration date: 9/26/2003, 21:51:39
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
156.40.53.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
156.40.98.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.0.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.124.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.127.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.136.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.194.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.200.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.200.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.252.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record
165.112.32.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Historical record

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

Registration and sources

Organization: National Institutes of Health
RIR: ARIN
Registration country: United States
Registration date: 9/26/2003, 21:51:39
Abuse contact: citnsarin@mail.nih.gov

Snapshot trend

10/2/2026, 07:03:2112 v40 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