Data as of Nov 14, 2026
204.12.158.0/24
No anonymizer space · no proxy exits in 30 daysShaw Communications
Announcement
this exact prefix
No RPKI
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Sep 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.12.144.0/20 since Sep 2021 | AS6327 | Residential | 14 | Shaw Communications |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 204.12.144.0/20 | 4,096 | SHAWENV-BLOCK4 | Shaw Communications (RCC-291) · CA | Direct Allocation | Jun 8, 2009 | internet. |
| └ 204.12.158.32/28 | 16 | ENV-CSC-204-12-158-32 | unknown | — | — | — |
| └ 204.12.158.48/28 | 16 | ENV-AF-204-12-158-48 | unknown | — | — | — |
| └ 204.12.158.64/27 | 32 | ENV-MCC-204-12-158-64 | unknown | — | — | — |
| └ 204.12.158.96/28 | 16 | ENV-PDC-204-12-158-96 | unknown | — | — | — |
| └ 204.12.158.112/30 | 4 | ENV-NEX-204-12-158-112 | unknown | — | — | — |
| └ 204.12.158.128/26 | 64 | ENV-PDC-204-12-158-128 | unknown | — | — | — |
| └ 204.12.158.216/29 | 8 | ENV-DGM-204-12-158-216 | unknown | — | — | — |
| └ 204.12.158.240/29 | 8 | ENV-CCHS-204-12-158-240 | unknown | — | — | — |
| └ 204.12.158.248/29 | 8 | ENV-DGM-204-12-158-248 | unknown | — | — | — |
Network & registry
Origin network
AS6327
CA
- Name
- Shaw Communications
- Type
- Internet provider
- Registered
- Mar 8, 1996
- Domain
- shaw.ca
- Website
- www.shaw.ca
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2026
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 204.
12. 144. 0/ 20 - Netname
- SHAWENV-BLOCK4
- Registrant
- Shaw Communications
- Organization
- Shaw Communications (RCC-291)
- Org address
- 8200 Dixie Rd, Brampton, ON, L6T 0C1
- Org country
- CA
- Type
- Direct Allocation
- Handle
- NET-204-12-144-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Jun 8, 2009
- RIR
- ARIN
- Country
- CA
- Delegated
- Jun 8, 2009
- Status
- assigned
Report abuse
Abuse contact
- internet.
abuse@ sjrb. ca - Name
- SHAW ABUSE
- Phone
- +1-403-750-7420
- Handle
- SHAWA-ARIN