Autonomous system
AS18988 CITYWEST-CORP
Residential ARIN Cable/DSL/ISP
Summary
City West Cable & Telephone
cable residential isp canada
CITYWEST-CORP is the autonomous system for City West Cable & Telephone Corp., a Canadian cable and telecommunications provider.
What it's used for
- The address space carries residential customer traffic, evidenced by reverse DNS entries such as
dhcp.ftth.smtr.citywest.caanddhcp.cmts.trrc.citywest.ca, indicating Fiber to the Home (FTTH) and Cable Modem Termination System (CMTS) infrastructure. - The AS announces 41,216 IPv4 addresses across 17 prefixes and 1 IPv6 prefix, while maintaining 18 observed routing neighbours; this high address-to-neighbour ratio is characteristic of an access or eyeball network rather than a transit provider.
Notable
- All registrants for the largest prefixes, including
CITYWEST-BLK3-CAandCITY-WEST-CGNT-NET-1, are consistently listed as City West Cable & Telephone Corp., aligning perfectly with the AS holder. - The inventory consists of a mix of larger /19 and /20 blocks alongside numerous smaller /22 and /24 allocations, reflecting a segmented internal estate for different service regions or technologies.
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 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.81.106 |
| YYCIX Calgary Internet Exchange | Calgary, Canada | 206.126.225.68 |
| Vancouver Internet Exchange | Vancouver, Canada | 206.41.104.43 |
Transit providers
9 upstream, 4 downstream and 17 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 41.22K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 18 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS18988- Registry name
- CITYWEST-CORP
- Registrant
- City West Cable & Telephone Corp.
- Abuse contact
- abuse@cwct.ca
- Registered
- 2000-11-06
- Last changed
- 2012-03-20
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- City West Cable & Telephone
- Also known as
- CityWest
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Heavy Inbound
- Peering policy
- Open
- IRR as-set
AS-CITYWEST- Present at
- 3 exchanges
- Facilities
- 3 facilities
- Website
- http://www.citywest.ca
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 33 with no ROA
- ROAs
- 0 authorising AS18988
- ASPA
- no ASPA record
- IRR
- 100% registered · 33 of 33 announcements
- Route objects
- 46 naming AS18988
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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