AS804

AS804 is a dormant, decades-old ASN registered under ARIN to the Institute for Space and Terrestrial Science (ISTS), a Canadian research organization; it currently announces zero IPv4 and zero IPv6 prefixes and shows no active BGP presence in any source checked.

The registry record dates to 1990-11-09 (ARIN RDAP top-level registration event), with a last-changed date of 1994-07-13. The registrant address on file — 4850 Keele Street, North York, ON — is the York University campus, consistent with ISTS having been a federally funded Canadian "Networks of Centres of Excellence" space/earth-science research institute historically hosted there, though no operator-official source confirms this beyond the registrant address itself.

RIPEstat and CAIDA independently agree on total routing inactivity: zero of 328 IPv4 and zero of 322 IPv6 RIS peers observe this AS, CAIDA's AS rank sits at 79,459, and the customer cone is a singleton (the ASN itself, 0 prefixes, 0 addresses) with AS degree all zeros — no customers, peers, or providers, and no IXP membership.

ARIN's registry status still reads "Active" — the allocation has not been revoked — but ARIN itself flags the administrative/technical/abuse point of contact (Michael Roberts, MR244-ARIN) as unvalidated with no response since 2010-06-17. No operator-official website, PeeringDB record, or network-type statement could be located; the ists.ca domain now belongs to an unrelated modern IT-services company and should not be conflated with the original research institute.

Operator

Institute for Space and Terrestrial Science (ISTS) — Canadian research organization (ARIN entity ISTS-5), registrant address consistent with York University, North York, ON [Confirmed] — ARIN RDAP autnum 804

Country / RIR

CA, ARIN [Confirmed] — CAIDA AS Rank country field; ARIN RDAP

Allocated

1990-11-09 (ARIN RDAP top-level registration event); last changed 1994-07-13 [Confirmed] — ARIN RDAP autnum top-level events

Org status

ARIN registry status "Active" (allocation not revoked), but the administrative/technical/abuse POC (Michael Roberts, MR244-ARIN) is flagged by ARIN as unvalidated with no response since 2010-06-17, indicating the underlying organization may be dormant or unreachable even though the registration persists

[Confirmed] — ARIN RDAP autnum 804

Contacts

the administrative/technical/abuse point of contact is ARIN handle MR244-ARIN (Michael Roberts), North York, ON, Canada — ARIN-flagged unvalidated with no response since 2010-06-17. The mailbox and telephone on that POC record are withheld here: the RDAP vCard declares kind: "individual", so they are a named person's contact details and are not republished on this page. Registrant (organisation) address 4850 Keele Street, North York, ON M3J 3K1, Canada

[Confirmed] — ARIN RDAP autnum 804

Website

Unknown / unverifiable — ists.ca now resolves to an unrelated modern IT-services company, not the original research institute; a 1998 Wayback snapshot exists per the archive.org availability API but could not be fetched to confirm [Unknown] — archive.org/wayback/available?url=ists.ca&timestamp=1998

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-08-01 — not present in Spamhaus ASN-DROP; consistent with a long-dormant, unrouted ASN

Network & routing

Network type

Unknown — no PeeringDB record exists for AS804 and no operator-official network-type statement was found [Unknown] — peeringdb.com/api/net?asn=804

Size

dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — RIPEstat routing-status, CAIDA AS Rank (2026-08)

Routing/peering

NOT announced — 0 of 328 IPv4 and 0 of 322 IPv6 RIS peers see it; CAIDA degree total 0 (customer 0, peer 0, provider 0); no upstreams, peers, or IXP memberships visible [Confirmed]. Peering policy Unknown — no PeeringDB record or operator-official policy page [Unknown]

RPKI

not assessable — AS804 announces no prefixes, so there is no route in flight to validate against a ROA [Confirmed] — stat.ripe.net/AS804

Notable usage

Likely a Canadian federally funded space/earth-science research institute (Networks of Centres of Excellence program) historically hosted at York University, inferred from the RDAP registrant address; no operator-official confirmation of network usage found

[Likely] — rdap.arin.net/registry/autnum/804

Related ASNs

none identified — no PeeringDB record and no documented sibling ASN block for this operator [Unknown]

Analyst note

Encountered as a long-dormant Canadian research-institute ASN with zero live routing across all sources checked (RIPEstat, CAIDA); ARIN's own unvalidated-POC flag since 2010 corroborates operational dormancy beyond just the routing absence.