Autonomous system
AS10520 EXECULINK
Unclassified ARIN
Summary
Execulink Telecom Inc.
isp legacy
A secondary ASN of Execulink Telecom, an independent Ontario telephone-and-internet company. The handle is simply EXECULINK.
What it's used for
Execulink is a genuinely old Canadian operator: it traces back to a rural Ontario telephone company and grew by absorbing a string of small local telcos and ISPs, and it serves tens of thousands of subscribers today across southwestern Ontario. But almost none of that lives here. AS10520 announces 3 IPv4 prefixes totalling 512 addresses (205.210.156.0/23 plus the two component /24s), no IPv6, and RIS sees one neighbour.
The company's main eyeball network is carried under a different, much larger ASN — AS7794. AS10520 is best read as a leftover: a legacy number and a legacy /23 that stayed attached to the group through the mergers and are still announced, rather than the AS that carries Execulink's subscribers.
Notable
The /23 is announced alongside both of its more-specific /24s. That is a common pattern for keeping a block reachable through more than one path or handing pieces of it to different downstream links, and it means the "3 prefixes" figure describes 512 unique addresses, not three separate networks.
Interesting
A good illustration of why an ASN's size tells you little about its holder's size. The brand behind this number is one of Ontario's larger independents; the number itself carries a /23.
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 |
|---|---|---|
| AS7794 | Execulink Telecom Inc. | 92 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10520- Registry name
- EXECULINK
- Registrant
- Execulink Telecom Inc.
- Abuse contact
- abuse@execulink.com
- Registered
- 2001-11-19
- Last changed
- 2022-03-10
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 1 authorising AS10520
- ASPA
- 1 declared providers
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 1 naming AS10520
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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