Data as of Nov 8, 2026
51.146.176.0/22
Anonymizer · ISP proxy15 residential-proxy exits · 30 daysFrontier Communications of America, Inc. · space held by Sky UK Limited
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Residential-proxy exits
Proxy exits
15
1.5% of its addresses · 30 days
Always-on exits
15
100% of its exits
Spread
1 of 4
/24s with at least one exit
Providers
6
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
19K observations
Proxy providers listing exits
- 711Proxy
- KocerRoxy
- LemonBright
- Proxiware
- Smartproxy
- ThunderProxy
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 51.146.176.0/22 | /24s |
|---|---|---|
| IPXO | 1,024100% | 4 |
Leased from
Owners leasing their own space
| Name | In 51.146.176.0/22 | /24s |
|---|---|---|
| Sky UK Limited | 1,024100% | 4 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
51.146.176.0/22
From the registry to its use
- Feb 5, 2026Registry recordSky UK LimitedALLOCATED PA51.146.0.0/16
- Feb 5, 2026ReallocatedSky UK LimitedSUB-ALLOCATED PA51.146.128.0/17
- Mar 8, 2026– today
- Mar 11, 2026Route objectAS5650 Frontier Communications of America, Inc.RADB route object for AS5650 Frontier Communications of America, Inc., maintainer MAINT-AS1020
- Mar 14, 2026Route objectIPXORADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS834
- Jul 6, 2026– Jul 17, 2026
- Jul 12, 2026Route objectAS12083 WideOpenWest Finance LLCRADB route object for AS12083 WideOpenWest Finance LLC, maintainer MAINT-AS1020
- Jul 12, 2026Route objectAS13347 Midwest CableRADB route object for AS13347 Midwest Cable, maintainer MAINT-AS1020
- Jul 18, 2026Route objectAS7029 Windstream Communications LLCRADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS102051.146.176.0/23
- Jul 18, 2026Route objectAS7029 Windstream Communications LLCRADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS102051.146.178.0/23
- todayLeased fromIPXOIP broker
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 |
|---|---|---|---|---|---|---|
| 51.146.0.0/16 | 65,536 | UK-SKY-19930901 | Sky UK Limited (ORG-SUL39-RIPE) · GB | ALLOCATED PA | Feb 5, 2026 | hostmaster@ |
| └ 51.146.128.0/17 | 32,768 | NET-51-146-128-0-17 | Sky UK Limited (ORG-SUL39-RIPE) · GB | SUB-ALLOCATED PA | Feb 5, 2026 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Sky UK Limited
- Handle
- ORG-SUL39-RIPE
- Range
- 51.
146. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Feb 5, 2026
Origin network
AS5650
US
- Name
- Frontier Communications of America, Inc.
- Type
- Internet provider
- Registered
- Jul 25, 1995
- Domain
- verizonbusiness.com
- Website
- www.frontier.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Mar 2026
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 2
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 51.146.176.0/23 | AS7029 | RADB | MAINT-AS1020 | Jul 18, 2026 | |
| 51.146.178.0/23 | AS7029 | RADB | MAINT-AS1020 | Jul 18, 2026 |
Whois
Registration for this announcement
- Range
- 51.
146. 128. 0/ 17 - Netname
- NET-51-146-128-0-17
- Registrant
- Sky UK Limited
- Registrant country
- US
- Organization
- Sky UK Limited (ORG-SUL39-RIPE)
- Org country
- GB
- Type
- SUB-ALLOCATED PA
- Created
- Feb 5, 2026
- Updated
- Apr 23, 2026
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse Contact
- Handle
- AR834