Autonomous system profile

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

AS11584

Announcement observedARIN

NYCHHC - New York City Health & Hospitals Corporation · NYCHHC

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

Last active9/30/2026, 04:58:30Snapshot expired

View network topology RDAP registration

ASN: AS11584
Registration country: United States
Name: NYCHHC - New York City Health & Hospitals Corporation
Abbreviation: NYCHHC
Registration date: 3/11/2008, 20:19:50
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
64.251.32.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.40.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.40.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.41.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.42.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.43.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.44.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.45.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.46.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
64.251.47.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
67.221.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
67.221.24.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
67.221.24.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
67.221.26.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid
67.221.27.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	10/26/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: NYCHHC - New York City Health & Hospitals Corporation
RIR: ARIN
Registration country: United States
Registration date: 3/11/2008, 20:19:50
Abuse contact: khalid.rucker@nychhc.org

Snapshot trend

9/30/2026, 04:58:3015 v40 v62 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 · rir-rdap-asn · iana-rdap-asn-bootstrap