Autonomous system
AS26546 NUCLEUS-INC
Residential ARIN
Summary
Nucleus Inc
cable dsl isp residential
NUCLEUS-INC is operated by Nucleus Inc, a Canadian cable and DSL internet service provider.
What it's used for
- The address space carries residential broadband traffic, evidenced by reverse DNS entries such as
DSL-vlan475-66-18-239-254.broadband.nucleus.comandcable-southern-216-66-144-0.broadband.nucleus.com. - With 34,304 IPv4 addresses announced across 5 prefixes and only 3 observed neighbours, the high address-to-neighbour ratio indicates an access network serving end-user connections rather than a transit provider.
Notable
- Registrants for the majority of prefixes are listed as FIBERNETICS CORPORATION, while the 204.209.5.0/24 block is registered to Cameo Systems, Inc. with netname
PINCODER. - The inventory consists of two large /18 blocks and three smaller /22 and /24 blocks, reflecting a mix of legacy and newer address allocations.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| YYCIX Calgary Internet Exchange | Calgary, Canada | 206.126.225.19 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 34.30K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS26546- Registry name
- NUCLEUS-INC
- Registrant
- FIBERNETICS CORPORATION
- Abuse contact
- arinabuse@fibernetics.ca
- Registered
- 2002-10-14
- Last changed
- 2019-04-01
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 1 authorising AS26546
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 11 naming AS26546
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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