AS817

AS817 is a dormant legacy autonomous system registered under ARIN to Verizon Business, via its MCI Communications Services, Inc. / legacy UUNET Canada lineage, that has announced zero IPv4 or IPv6 prefixes since 2008-09-11.

The registry name UUNET-CANADA reflects the ASN's origin as an early Canadian commercial internet backbone provider. It was folded into MCI and then into Verizon Business following the 2006 MCI/Verizon merger; ARIN RDAP lists the registrant org as MCICS (MCI Communications Services, Inc.), Verizon's legacy UUNET entity.

All routing sources consulted agree on total inactivity: RIPEstat, CAIDA AS Rank, bgp.he.net, and bgp.tools each show 0 announced IPv4/IPv6 prefixes and 0 observed BGP peers as of 2026-08-01. CAIDA ranks it 79,459 with a singleton customer cone (itself, 0 prefixes, 0 addresses). RIPEstat's routing-status data shows it historically announced /24 blocks between 2000-09-07 and 2008-09-11 (first seen 199.202.234.0/24, last seen 199.202.248.0/24), but nothing since.

No PeeringDB network record exists for AS817 (API query 404), and no independent peering-policy document names it specifically. Verizon Business publishes a general settlement-free interconnection policy covering its primary ASNs (such as AS701), but no source ties that policy text to AS817 by number.

RPKI cannot be assessed because AS817 announces no prefixes today, so there are no ROAs to validate. ARIN RDAP shows the registration itself remains Active (last changed 2022-05-31), but the ASN is operationally dormant on the live BGP table — a registry record kept current even though nothing routes under it.

Operator

Verizon Business (registrant org MCICS — MCI Communications Services, Inc.; legacy UUNET Canada; registry AS name UUNET-CANADA) [Confirmed] — https://rdap.arin.net/registry/autnum/817

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/817

Allocated

2002-05-21 (ARIN RDAP autnum top-level "registration" event; last changed 2022-05-31) [Confirmed] — https://rdap.arin.net/registry/autnum/817

Org status

Active registration status in ARIN RDAP (registrant MCICS/Verizon Business), last changed 2022-05-31; operationally dormant on the live BGP table since 2008-09-11 [Confirmed] — https://rdap.arin.net/registry/autnum/817

Contacts

abuse-mail@verizonbusiness.com; abuse@verizon.com (authoritative RIR: ARIN) [Confirmed] — RIPEstat abuse-contact-finder

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-08-01 — not in Spamhaus ASN-DROP; general 2003–2004 UUNET spam criticism not attributed to AS817 by name

Network & routing

Network type

legacy/transit-class ASN, originally UUNET Canada; currently dormant, not announcing routes distinct from Verizon's primary infrastructure [Confirmed] — https://bgp.he.net/AS817

Size

dormant — 0 IPv4/IPv6 prefixes announced; historically announced /24 blocks 2000-09-07 to 2008-09-11 (first seen 199.202.234.0/24, last seen 199.202.248.0/24); customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS817, https://asrank.caida.org/asns/817

Routing/peering

NOT announced — 0 RIS peers see it (0/328 v4, 0/322 v6); CAIDA degree total 0 (customer 0, peer 0, provider 0); no PeeringDB network record exists for AS817 (API returns 404) [Confirmed]. No peering-policy document names AS817 specifically

[Unknown] — https://asrank.caida.org/asns/817, https://www.peeringdb.com/api/net?asn=817

RPKI

not assessable — AS817 announces no prefixes, so no ROAs exist to validate [Confirmed] — RIPEstat rpki-validation (skipped: requires a specific announced prefix)

Notable usage

historically UUNET Canada, an early Canadian commercial internet backbone; no current notable usage sourced given the ASN is dormant [Unknown] — https://bgp.he.net/AS817, https://en.wikipedia.org/wiki/UUNET

Related ASNs

AS701, AS702 (Verizon Business's primary operational ASNs, per descriptive mention in bgp.he.net context) [Likely] — https://bgp.he.net/AS817

Analyst note

Encountered as a dormant legacy ASN whose registry name (UUNET-CANADA) reflects its origin as an early Canadian ISP, now folded into Verizon Business via the MCI/UUNET lineage. No dedicated operator website or PeeringDB record exists for AS817 itself, and no notable current usage or abuse signal could be sourced given zero live routing.