asn.dev

Autonomous system

AS21804 ACCESS-SK

Unclassified ARIN

IPv4 addresses 87.81K 20 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CA
Exchanges 3 recorded by PCH
Upstreams 16 3 downstream
Flagged prefixes 0 none

Summary

Access Communications

Canada · AI-generated

cable dsl isp residential

The AS handle ACCESS-SK is operated by Access Communications Co-operative Limited.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries such as static24-72-95-254.km.rev.accesscomm.ca and network24-72-32-0.r.rev.accesscomm.ca.
  • With 87808 IPv4 addresses announced across 20 prefixes and 24 observed neighbours, the ratio indicates an access network providing last-mile connectivity rather than a transit provider.

Notable

  • All registrants in the RDAP sample are consistent with the announcer, listing "Access Communications Co-operative Limited" or "Access Communications".
  • The address inventory is finely subdivided into multiple /20, /21, /22, and /24 blocks, reflecting site-by-site segmentation typical of a regional cable and DSL operator.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
Seattle Internet ExchangeSeattle, United States206.81.81.24
Toronto Internet ExchangeToronto, Canada206.108.35.61
Equinix Internet Exchange ChicagoChicago, United States208.115.137.45

Transit providers

16 upstream, 3 downstream and 27 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3257GTT Communications Inc.619
AS6327Shaw Communications230
AS6939Hurricane Electric LLC214
AS174Cogent Communications, LLC144
AS9002RETN Limited74
AS22652Videotron Ltee50
AS24482SG.GS26
AS394256Tech Futures Interactive Inc.26

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 20 prefixes · 87.81K addresses IPv6 1 prefixes

CountryNamePrefixes
CACanada21

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21804
Registry name
ACCESS-SK
Registrant
Access Communications Co-operative Limited
Abuse contact
hostmaster@accesscomm.ca
Registered
2001-06-21
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
11% valid · 3 valid, 25 with no ROA
ROAs
1 authorising AS21804
ASPA
no ASPA record
IRR
100% registered · 28 of 28 announcements
Route objects
98 naming AS21804

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check