Autonomous system
AS63363 TUCOWS-TRS-DNS2
Unclassified ARIN
Summary
Tucows
registry dns business
The AS handle TUCOWS-TRS-DNS2 is held by Tucows.com Co.
What it's used for
- The address space carries registry and DNS infrastructure, evidenced by the netname
UNI-SRSand reverse DNS entries pointing totucowsregistry.net. - The AS announces 512 IPv4 addresses across 2 prefixes and 2 IPv6 prefixes, with only 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
- Traffic from this AS consists of web and API endpoints for Tucows' domain registration and DNS management services.
Notable
- The RDAP registrant for both announced IPv4 prefixes is Uniregistry Inc, which differs from the AS holder Tucows.com Co.
- The address inventory is finely subdivided into two /24 blocks, consistent with an internal corporate estate for specific service segments.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS63363- Registry name
- TUCOWS-TRS-DNS2
- Registrant
- Tucows.com Co.
- Abuse contact
- arin-abuse@tucows.com
- Registered
- 2014-12-19
- Last changed
- 2022-08-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 6 authorising AS63363
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS63363
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 1,781 prefixes, as published 2026-10-16. 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