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Data as of Nov 7, 2026

81.128.137.16/29

No anonymizer space · no proxy exits in 30 days

British Telecommunications Limited

Announcement
81.128.0.0/12
RPKI valid
Announced by
AS2856
Type
Business
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
1
13% of its addresses · listed by providers
Providers
1
selling exits here

Proxy providers listing exits

  • NovProxy

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
81.128.0.0/11
since May 2005
AS2856Residential55,475
2,884 always on
British Telecommunications Limited

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
81.128.0.0/112,097,152UK-BT-20020725British Telecommunications Limited (ORG-BPIS1-RIPE) · GBALLOCATED PASep 10, 2002abuse@bt.com
└ 81.128.0.0/121,048,576BT-INFRABT Infrastructure LayerLIR-PARTITIONED PAAug 1, 2014abuse@bt.com
via UK-BT-20020725

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 81.128.0.0/12

Prefix
81.128.0.0/12
Announced by
AS2856 British Telecommunications Limited
Type
Residential
Proxy exits
19,793
Always-on exits
1,117
RPKI
RPKI valid
Netname
BT-INFRA
Registrant
BT Infrastructure Layer
RIR
RIPE NCC
Registry

Holder

Organization
British Telecommunications Limited
Handle
ORG-BPIS1-RIPE
Range
81.128.0.0/11
Registration type
ALLOCATED PA
Record created
Sep 10, 2002
Reallocated to
BT Infrastructure Layer
Reallocated range
81.128.0.0/12
Reallocation type
LIR-PARTITIONED PA
Reallocated
Aug 1, 2014
Origin network

AS2856

GB
Name
British Telecommunications Limited
Type
Internet provider
Registered
Dec 22, 1993
Domain
bt.net
Website
www.bt.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
12