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Data as of Nov 14, 2026

51.146.136.0/22

Anonymizer · ISP proxy3 residential-proxy exits · 30 days

British Telecommunications Limited · space held by Sky UK Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS2856
Type
ISP proxy
Risk
90 / 100 · Critical

Residential-proxy exits

Proxy exits
3
0.29% of its addresses · 30 days
Spread
3 of 4
/24s with at least one exit
Providers
7
selling exits here
Oct 15, 2026 – Nov 13, 2026

Exits seen per day

1.2K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
51.146.137.0/2401
51.146.138.0/2401
51.146.139.0/2401

Proxy providers listing exits

  • Ake.net
  • CatProxies
  • KocerRoxy
  • LemonBright
  • NextProxy
  • ProxyRack
  • ThunderProxy
IPv4 market

Path

1 · Holder
Sky UK Limited
record created Feb 5, 2026
2 · Leased from
IPXO
for its owner Sky UK Limited
3 · Announced by
AS2856 British Telecommunications Limited
since Mar 2026 · 8 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 51.146.136.0/22/24s
IPXO
1,024100%
4
Leased from

Owners leasing their own space

NameIn 51.146.136.0/22/24s
Sky UK Limited
1,024100%
4

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

51.146.136.0/22

From the registry to its use

  1. Feb 5, 2026
    Registry record
    Sky UK Limited
    ALLOCATED PA
    51.146.0.0/16
  2. Feb 5, 2026
    Reallocated
    Sky UK Limited
    SUB-ALLOCATED PA
    51.146.128.0/17
  3. Feb 27, 2026
    Route object
    IPXO
    RIPE route object for AS2856 British Telecommunications Limited, maintainer NETUTILS-MNT
  4. Feb 27, 2026
    Route object
    IPXO
    RADB route object for AS2856 British Telecommunications Limited, maintainer MAINT-AS834
  5. Mar 8, 2026– today
    Announced
    AS2856 British Telecommunications Limited
    Internet provider
  6. Apr 30, 2026
    Route object
    IPXO
    RIPE route object for AS6079 RCN, maintainer NETUTILS-MNT
  7. Apr 30, 2026
    Route object
    IPXO
    RADB route object for AS6079 RCN, maintainer MAINT-AS834
  8. Apr 30, 2026
    Route object
    IPXO
    RIPE route object for AS399955 B-Rock Crude, maintainer NETUTILS-MNT
  9. Apr 30, 2026
    Route object
    IPXO
    RADB route object for AS399955 B-Rock Crude, maintainer MAINT-AS834
  10. today
    Leased from
    IPXO
    IP 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
51.146.0.0/1665,536UK-SKY-19930901Sky UK Limited (ORG-SUL39-RIPE) · GBALLOCATED PAFeb 5, 2026hostmaster@sky.uk
└ 51.146.128.0/1732,768NET-51-146-128-0-17Sky UK Limited (ORG-SUL39-RIPE) · GBSUB-ALLOCATED PAFeb 5, 2026report@abuseradar.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
Mar 2026
Current origin since
Mar 2026 · 8 mo
Origin networks
1