asn.dev

Autonomous system

AS399016 CFOC-1

Unclassified ARIN

IPv4 addresses 3.07K 5 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CA
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

4 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6461Zayo Bandwidth315
AS174Cogent Communications, LLC222
AS30500Wolfpaw Data Centres Inc131
AS852TELUS Communications Inc.111

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 5 prefixes · 3.07K addresses IPv6 1 prefixes

CountryNamePrefixes
CACanada6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS399016
Registry name
CFOC-1
Registrant
Canadian Fiber Optics Corp.
Abuse contact
abuse@canadianfiberoptics.ca
Registered
2020-11-06
Last changed
2020-11-06
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
93% valid · 14 valid, 0 with no ROA 1 RPKI-invalid
ROAs
21 authorising AS399016
ASPA
no ASPA record
IRR
100% registered · 15 of 15 announcements
Route objects
28 naming AS399016

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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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