Autonomous system
AS46477 PERIM-ASN
Unclassified ARIN
Summary
Perimeter Institute
research education business
PERIM-ASN is held by Perimeter Institute.
What it's used for
- The space carries infrastructure for a theoretical physics research centre, with the sole announced prefix 38.64.135.0/24 registered under the netname
COGENT-Aby Cogent Communications, LLC. - The AS announces 256 IPv4 addresses across 1 prefix and maintains 1 observed neighbour, a ratio consistent with a small, self-contained institutional network rather than a transit or access provider.
- Traffic from this AS represents the digital footprint of an independent research institution in Waterloo, Canada, supporting staff, researchers, and associated scientific projects.
Notable
- The RDAP registrant for the announced prefix is Cogent Communications, LLC, which differs from the AS holder Perimeter Institute, indicating the address space is leased or allocated via Cogent.
- The address inventory consists of a single /24 block, representing a compact and uniform allocation for the organisation's needs.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS26677 | ORION | 61 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS46477- Registry name
- PERIM-ASN
- Registrant
- Perimeter Institute
- Abuse contact
- jgonzalez@perimeterinstitute.ca
- Registered
- 2008-09-29
- Last changed
- 2024-09-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS46477
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS46477
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 2026-10-17. 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