AS545

AS545 is a legacy autonomous system number, registered under ARIN on 1989-10-17 (the RDAP autnum's top-level "registration" event, distinct from three newer nested contact-entity registration dates that belong to individual POCs, not the ASN itself) to the Corporation for National Research Initiatives (CNRI), a Reston, Virginia nonprofit founded by TCP/IP co-inventor Robert E. Kahn. CNRI is best known for developing the Handle System — the persistent-identifier infrastructure underlying the Digital Object Architecture and the Handle.Net Registry, which today manages tens of millions of digital object identifiers — and for related work including Cordra.org and a historical role running the IETF Secretariat. AS545 is small but actively announced, not dormant: it currently originates two IPv4 prefixes (132.151.0.0/16 and 65.194.67.0/24, roughly 65,792 addresses) and one IPv6 prefix (2602:80d:3000::/44), consistently confirmed across RIPEstat and Hurricane Electric. CAIDA ranks it 13,834 globally with a singleton customer cone (no downstream customers), and its only identified upstream/peer is AS701 (Verizon Business/UUNET), a single-source finding. No RPKI ROA history and no public abuse signal were found as of 2026-07-11.

Operator

Corporation for National Research Initiatives (CNRI); nonprofit, Reston, VA [Confirmed] — https://rdap.arin.net/registry/autnum/545, https://www.cnri.reston.va.us/

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/545

Allocated

1989-10-17 (ARIN RDAP autnum top-level "registration" event, handle AS545 — a first-party RIR fact, not derived from the nested contact/org entity dates); last changed 2025-11-06 [Confirmed] — https://rdap.arin.net/registry/autnum/545

AS name (RDAP)

"NRI" [Confirmed] — https://rdap.arin.net/registry/autnum/545

Org status

active independent nonprofit corporation, founded 1986 by Robert E. Kahn [Confirmed] — https://rdap.arin.net/registry/autnum/545, https://www.cnri.reston.va.us/about_cnri.html

Contacts

RDAP lists three individually named technical/abuse POCs, all at the cnri.reston.va.us domain, plus registrant org CNRI-Z; HQ 1895 Preston White Drive, Suite 100, Reston, VA 20191 [Confirmed] — https://rdap.arin.net/registry/autnum/545

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-11 — not on the live Spamhaus ASN-DROP feed, no NANOG/seclists.org hijack or route-leak threads found; one unconfirmed single-source "announces bogons" note surfaced from a bgp.he.net summary is flagged but not asserted as fact

Network & routing

Network type

nonprofit research organization (self-reported on PeeringDB); operates Digital Object Architecture, Handle.Net Registry, Cordra.org [Confirmed] — https://www.peeringdb.com/asn/545, https://www.cnri.reston.va.us/

Size

actively announced — 2 IPv4 prefixes / ~65,792 addresses, 1 IPv6 prefix; singleton customer cone (1 ASN, 2 prefixes, 65,792 addresses; no downstream customers) [Confirmed] — https://stat.ripe.net/data/announced-prefixes/data.json?resource=AS545, https://api.asrank.caida.org/v2/restful/asns/545, https://bgp.he.net/AS545

Routing/peering

visible since 2000-08-18, currently seen by 325 (v4) / 322 (v6) RIS peers; open peering policy (unicast IPv4/IPv6, no multicast) per PeeringDB [Confirmed]. Only identified upstream/peer is AS701 (Verizon Business/UUNET) [Likely, single-source] — https://stat.ripe.net/data/routing-status/data.json?resource=AS545, https://www.peeringdb.com/asn/545, https://bgp.he.net/AS545

RPKI

no ROA/validation records found — RIPEstat rpki-history query returned an empty timeseries (confirmed absence in the queried dataset; not evidence of absence elsewhere) [Confirmed absence in dataset] — https://stat.ripe.net/data/rpki-history/data.json?resource=AS545

Notable usage

Digital Object Architecture and the Handle.Net Registry (persistent digital-object identifiers), Cordra.org; CNRI historically operated the IETF Secretariat and contributed to founding the Internet Society

[Confirmed] — https://www.cnri.reston.va.us/, https://en.wikipedia.org/wiki/Corporation_for_National_Research_Initiatives

Related ASNs

none identified [Unknown]

Analyst note

A small, actively routed legacy ASN held by a well-regarded internet-research nonprofit (Handle System, Digital Object Architecture). No NANOG/Reddit community discussion or documented incidents found, consistent with a low-visibility research/infrastructure operator rather than a commercial ISP.