Data as of Nov 8, 2026
142.173.72.0/21
Anonymizer · ISP proxyCox Communications Inc. · space held by TELUS Communications Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Nov 8, 2026
from AS6079 RCN
IPv4 market
Path
Announced by AS22773 since Nov 8, 2026 · this week
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 142.173.72.0/21 | /24s |
|---|---|---|
| IPv4.Global | 2,048100% | 8 |
Leased from
Owners leasing their own space
| Name | In 142.173.72.0/21 | /24s |
|---|---|---|
| TELUS Communications Inc. | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
142.173.72.0/21
From the registry to its use
- Aug 26, 1992Registry recordTELUS Communications Inc.Direct Allocation (legacy, pre-1997)142.173.0.0/16
- Jul 15, 2026
- Jul 23, 2026Route objectAS20115 Charter Communications LLCARIN route object for AS20115 Charter Communications LLC, maintainer MNT-TACE
- Aug 6, 2026
- Aug 11, 2026– Nov 7, 2026
- Aug 27, 2026Route objectAS7843 Charter Communications IncARIN route object for AS7843 Charter Communications Inc, maintainer MNT-TACE
- Aug 27, 2026Route objectAS22773 Cox Communications Inc.ARIN route object for AS22773 Cox Communications Inc., maintainer MNT-TACE
- Nov 8, 2026– today
- todayLeased fromIPv4.GlobalIP broker
Network & registry
Origin network
AS22773
US
- Name
- Cox Communications Inc.
- Type
- Internet provider
- Registered
- Nov 20, 2001
- Domain
- cox.com
- Website
- www.cox.com/peering
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Nov 8, 2026 · under a month
- Origin networks
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 142.173.72.0/21 | AS6079 | /21 | ARIN | Another network |
| 142.173.72.0/21 | AS7843 | /21 | ARIN | Another network |
| 142.173.72.0/21 | AS20115 | /21 | ARIN | Another network |
| 142.173.72.0/21 | AS22773 | /21 | ARIN | RPKI valid |
| 142.173.72.0/21 | AS201115 | /21 | ARIN | Another network |
| 142.173.64.0/20 | AS6079 | /20 | ARIN | Another network |
| 142.173.64.0/20 | AS7029 | /20 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6079 not the origin | ARIN | TELUS Communications Inc. | MNT-TACE | Aug 6, 2026 |
| AS7843 not the origin | ARIN | TELUS Communications Inc. | MNT-TACE | Aug 27, 2026 |
| AS20115 not the origin | ARIN | TELUS Communications Inc. | MNT-TACE | Jul 23, 2026 |
| AS22773 | ARIN | TELUS Communications Inc. | MNT-TACE | Aug 27, 2026 |
| AS201115 not the origin | ARIN | TELUS Communications Inc. | MNT-TACE | Jul 15, 2026 |
Whois
Registration for this announcement
- Range
- 142.
173. 0. 0/ 16 - Netname
- TELUS-142-173
- Registrant
- TELUS Communications Inc.
- Organization
- TELUS Communications Inc. (TACE)
- Org address
- 510 W Georgia St, Vancouver, BC, V6B 2A3
- Org country
- CA
- Type
- Direct Allocation
- Handle
- NET-142-173-0-0-1
- Parent
- NET-142-0-0-0-0
- Created
- Aug 26, 1992
- RIR
- ARIN
- Country
- CA
- Delegated
- Aug 26, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
telus. com - Name
- Abuse at TELUS
- Phone
- +1-877-945-8220
- Handle
- AAT-ARIN