AS563

AS563 is a long-tenured autonomous system number registered under ARIN to HP Inc. (RDAP registrant handle HPINC-Z, autnum name "HPINC"), with its top-level registration event dated 1990-01-01 and its record last administratively updated 2024-02-22. The ASN is currently dormant from a routing standpoint: RIPEstat, CAIDA AS Rank, Hurricane Electric's BGP Toolkit, and bgp.tools independently agree it announces zero IPv4 and zero IPv6 prefixes today, has zero visible BGP peers or upstreams, and a CAIDA customer cone of exactly one ASN (itself) with zero prefixes and zero addresses. Its CAIDA AS rank of 79,459 places it near the bottom of the global connectivity ranking. The only historical BGP activity on record is a single announced block, 192.136.34.0/23, first seen 2000-10-31 and last seen 2001-03-20 — never observed since. No PeeringDB network entry exists for ASN 563, and no HP-published peering policy was located, consistent with an internal/reserved enterprise ASN rather than a transit or peering network. RPKI posture cannot be evaluated because there is no active origination to validate against a ROA. No notable public abuse signal was found as of 2026-07-11.

Operator

HP Inc. (ARIN registrant handle HPINC-Z; autnum name "HPINC"; address 1501 Page Mill Rd, Palo Alto, CA 94304, US) [Confirmed] — https://rdap.arin.net/registry/autnum/563

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/563

Allocated

1990-01-01 (ARIN RDAP autnum top-level "registration" event — first-party RIR fact, not an IEEE/OUI-style date); last changed 2024-02-22 [Confirmed] — https://rdap.arin.net/registry/autnum/563, corroborated https://bgp.tools/as/563 ("Active, Allocated under ARIN" since January 1, 1990)

Org status

active per ARIN RDAP (status: active); registrant HP Inc., contact entity HIA8-ARIN (HP Inc IP Admin) with Abuse/Technical/Administrative roles, status Validated [Confirmed] — https://rdap.arin.net/registry/autnum/563

Contacts

IPAdmin@hp.com and the corporate switchboard +1-650-857-1501 (1501 Page Mill Rd, Palo Alto), both carried on HP's "HP Inc IP Admin" group POC record (HIA8-ARIN, RDAP kind=group); an individual staff mailbox also listed on that record is not reproduced here. authoritative_rir=arin

[Confirmed] — https://rdap.arin.net/registry/autnum/563, RIPEstat abuse-contact-finder (resource=563)

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-11 — not named in Spamhaus/NANOG archive context checked; consistent with a quiet, non-transit corporate ASN; live Spamhaus ASN-DROP list membership not directly queried

Network & routing

Network type

enterprise/internal ASN, not a public transit or peering network — no PeeringDB record for ASN 563 (404 on both UI and API), zero announced routes [Likely] — https://www.peeringdb.com/asn/563, https://bgp.he.net/AS563

Size / current routing

0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes announced; CAIDA customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — RIPEstat announced-prefixes (resource=563), CAIDA ASRank API (asn=563), https://bgp.he.net/AS563, https://bgp.tools/as/563

Routing/peering

not currently announced — 0/327 v4 RIS peers seeing it, 0/322 v6; CAIDA AS degree total 0 (customer 0, peer 0, provider 0); no PeeringDB listing or published peering policy found [Confirmed] — RIPEstat routing-status (resource=563), CAIDA ASRank API

RPKI

not assessable — AS563 announces no prefixes, so there are no ROAs to validate; RIPEstat rpki-validation was skipped (requires a prefix) [Unknown, honestly abstained] — RIPEstat rpki-validation (resource=563)

Historical routing

only observed announcement is 192.136.34.0/23, first_seen 2000-10-31, last_seen 2001-03-20; not seen since [Confirmed] — RIPEstat routing-status (resource=563)

CAIDA AS rank

79,459; geo footprint US (CAIDA lat/long fields are placeholder 0, not real coordinates) [Confirmed] — CAIDA ASRank API (asn=563)

Historical ownership note

one third-party source lists the ASN as historically associated with 3Com Corporation prior to HP's 2010 acquisition of 3Com; not corroborated by ARIN RDAP or by other angles [Likely, single-source] — https://bgp.potaroo.net/cidr/autnums.html

Analyst note

registered decades ago to HP Inc. but shows no current routing footprint, no PeeringDB entry, and no peers/upstreams in any source consulted — reads as a reserved/internal enterprise ASN rather than an actively operated network.