LAYER3 INTEL
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Data as of Nov 8, 2026

81.128.0.0/11

No anonymizer space

British Telecommunications Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS2856
Type
Residential
91% of it

Residential-proxy exits

Proxy exits
56,084
2.7% of its addresses · listed by providers
Always-on exits
2,942
5.2% of its exits
Spread
5,139 of 8,192
/24s with at least one exit
Providers
128
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
81.154.206.0/24630
81.158.195.0/24628
81.132.189.0/24617
81.136.12.0/24523
81.135.120.0/24522
81.151.28.0/24522
81.129.73.0/24518
81.158.113.0/24517
81.132.16.0/24516
81.154.230.0/24512
81.132.62.0/24510
81.153.225.0/24429
81.156.139.0/24429
81.158.251.0/24425
81.158.40.0/24424
81.131.113.0/24424
81.152.16.0/24423
81.157.5.0/24423
81.156.134.0/24423
81.135.118.0/24422
81.140.232.0/24421
81.147.74.0/24421
81.136.101.0/24421
81.148.236.0/24421

Proxy providers listing exits

  • 2Captcha
  • 2Extract
  • 711Proxy
  • 9Proxy
  • ASHBURNPROXIES
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • ColaProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FROXY
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • FuseProxy
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPCola
  • IPFly
  • IPMUSK
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • MoMoProxy
  • MrScraper
  • NSocks
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXYON
  • PROXYWING_BASIC
  • PSBProxy
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyStyler
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • QUANTICDATA
  • RH7Proxy
  • RainProxy
  • RapidProxy
  • RealProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • SPYDERPROXY_BASIC
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • TrustProxy
  • VProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • WealthProxies
  • YumiProxy
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
81.128.0.0/12
since Jun 2005
AS2856Residential19,989
1,141 always on
British Telecommunications Limited
via BT Infrastructure Layer

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
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
└ 81.128.0.0/1732,768BT-N3SPunknownASSIGNED PAJun 8, 2004abuse@bt.com
via BT-INFRA
└ 81.128.128.0/2816BTNET-CUSTOMERFTIP008842695 IP MasterASSIGNED PAFeb 4, 2025abuse@bt.com
via BT-INFRA
└ 81.128.128.16/2816BTNET-CUSTOMERFTIP006578442 IP MasterASSIGNED PAOct 29, 2021abuse@bt.com
via BT-INFRA
└ 81.128.128.32/298BTNET-CUSTOMERFTIP006536039 IP MasterASSIGNED PASep 21, 2021abuse@bt.com
via BT-INFRA
└ 81.128.128.40/298BTNET-CUSTOMERFTIP008402295 IP MasterASSIGNED PAJul 30, 2024abuse@bt.com
via BT-INFRA
└ 81.128.128.48/298BTNET-CUSTOMERFTIP008765680 IP MasterASSIGNED PAOct 11, 2024abuse@bt.com
via BT-INFRA
└ 81.128.128.56/298BTNET-CUSTOMERFTIP009796881 IP MasterASSIGNED PAMay 21, 2026abuse@bt.com
via BT-INFRA
└ 81.128.128.64/2816BTNET-CUSTOMERFTIP003358641 IP MasterASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.128.80/298BTNET-CUSTOMERFTIP003350898 IP MasterASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.128.88/298ALTRO-LIMITEDFTIP004011026 Altro LimitedASSIGNED PANov 15, 2017abuse@bt.com
via BT-INFRA
└ 81.128.128.96/2816BTNET-CUSTOMERFTIP003361092 IP MasterASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.128.112/2816BTNET-CUSTOMERFTIP005978441 IP MasterASSIGNED PAOct 9, 2024abuse@bt.com
via BT-INFRA
└ 81.128.128.128/2816BTNET-CUSTOMERFTIP006564650 IP MasterASSIGNED PAJan 14, 2022abuse@bt.com
via BT-INFRA
└ 81.128.128.144/2816BTNET-CUSTOMERFTIP006309428 IP MasterASSIGNED PAJun 8, 2021abuse@bt.com
via BT-INFRA
└ 81.128.128.160/2816SUMMIT-ROOFGUARD-LTDFTIP003350959 Summit Roofguard LtdASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.128.176/2816BTNET-CUSTOMERFTIP006547639 IP MasterASSIGNED PANov 1, 2021abuse@bt.com
via BT-INFRA
└ 81.128.128.192/2664EMECFTIP003361207 The European Marine Energy Centre LtdASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.0/304BTNET-CUSTOMERFTIP006541040 IP MasterASSIGNED PASep 21, 2021abuse@bt.com
via BT-INFRA
└ 81.128.129.8/298BTNET-CUSTOMERFTIP006934132 IP MasterASSIGNED PAMay 24, 2022abuse@bt.com
via BT-INFRA
└ 81.128.129.16/298BRITANNIA-PARKINGFTIP003361153 Britannia Parking LtdASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.24/298MAYFAIR-PRESSFTIP003361184 Mayfair Press (Oxford) LtdASSIGNED PAJun 8, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.32/298BTNET-CUSTOMERFTIP006533830 IP MasterASSIGNED PASep 21, 2021abuse@bt.com
via BT-INFRA
└ 81.128.129.40/298BTNET-CUSTOMERFTIP003360248 IP MasterASSIGNED PAJun 9, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.48/2816HMCTSFTIP005180639 HMCTSASSIGNED PANov 1, 2019abuse@bt.com
via BT-INFRA
└ 81.128.129.80/298AA-HOMES-AND-HOUSING-LTDFTIP003353790 A A Homes and Housing LtdASSIGNED PAJun 9, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.96/2732BTNET-CUSTOMERFTIP007470455 IP MasterASSIGNED PAMay 16, 2023abuse@bt.com
via BT-INFRA
└ 81.128.129.128/298BTNET-CUSTOMERFTIP005777051 IP MasterASSIGNED PAApr 28, 2022abuse@bt.com
via BT-INFRA
└ 81.128.129.136/298P-ANDFTIP004330738 P AND O Ferries LTDASSIGNED PAJun 9, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.144/298BTNET-CUSTOMERFTIP004677635 IP MasterASSIGNED PAFeb 4, 2019abuse@bt.com
via BT-INFRA
└ 81.128.129.152/298BTNET-CUSTOMERFTIP009385320 IP MasterASSIGNED PAAug 4, 2025abuse@bt.com
via BT-INFRA
└ 81.128.129.160/298BTNET-CUSTOMERFTIP008446923 IP MasterASSIGNED PAOct 11, 2024abuse@bt.com
via BT-INFRA
└ 81.128.129.168/298BTNET-CUSTOMERFTIP007244223 IP MasterASSIGNED PANov 22, 2022abuse@bt.com
via BT-INFRA
└ 81.128.129.176/298BTNET-CUSTOMERFTIP006989729 IP MasterASSIGNED PAJul 15, 2022abuse@bt.com
via BT-INFRA
└ 81.128.129.184/298BTNET-CUSTOMERFTIP008144690 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
└ 81.128.129.192/2816BTNET-CUSTOMERFTIP003168684 IP MasterASSIGNED PANov 3, 2021abuse@bt.com
via BT-INFRA
└ 81.128.129.208/2816BTNET-CUSTOMERFTIP009957510 IP MasterASSIGNED PAJun 9, 2014abuse@bt.com
via BT-INFRA
└ 81.128.129.224/298BTNET-CUSTOMERFTIP008432681 IP MasterASSIGNED PAJul 30, 2024abuse@bt.com
via BT-INFRA
└ 81.128.129.232/298BTNET-CUSTOMERFTIP006934101 IP MasterASSIGNED PAMay 24, 2022abuse@bt.com
via BT-INFRA
└ 81.128.129.240/298BTNET-CUSTOMERFTIP007244469 IP MasterASSIGNED PANov 22, 2022abuse@bt.com
via BT-INFRA
└ 81.128.130.0/2816BTNET-CUSTOMERFTIP003851937 IP MasterASSIGNED PAJul 28, 2017abuse@bt.com
via BT-INFRA
└ 81.128.130.16/298BTNET-CUSTOMERFTIP003523551 IP MasterASSIGNED PAMar 16, 2016abuse@bt.com
via BT-INFRA
└ 81.128.130.24/298BTNET-CUSTOMERFTIP007013829 IP MasterASSIGNED PAJul 15, 2022abuse@bt.com
via BT-INFRA
└ 81.128.130.48/298BTNET-CUSTOMERFTIP004270140 IP MasterASSIGNED PAJun 6, 2018abuse@bt.com
via BT-INFRA
└ 81.128.130.56/298DECATHLON-UK-LIMITEDFTIP003358085-Decathlon UK LimitedASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.130.64/2732THE-TAUNTON-ACADEMYFTIP003360606 The Taunton AcademyASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.130.96/2816BTNET-CUSTOMERFTIP007661280 IP MasterASSIGNED PAAug 23, 2023abuse@bt.com
via BT-INFRA
└ 81.128.130.112/298LEND-LEASEFTIP003358115-Lend LeaseASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.130.120/298VERIGOLD-JEWELLERY-LTDFTIP003358696 Verigold Jewellery LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.130.128/298BTNET-CUSTOMERFTIP003360613 IP MasterASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.130.136/298EDWARD-DAVIESFTIP003462324 Edward Davies Commercials LTDASSIGNED PAMar 31, 2016abuse@bt.com
via BT-INFRA
└ 81.128.130.144/2816BTNET-CUSTOMERFTIP006316624 IP MasterASSIGNED PAJun 9, 2021abuse@bt.com
via BT-INFRA
└ 81.128.130.160/2816BTNET-CUSTOMERFTIP009536104 IP MasterASSIGNED PANov 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.130.176/298ONE-BUSINESSBTN-26-00007-38812 IP MasterASSIGNED PAJun 9, 2026abuse@bt.com
via BT-INFRA
└ 81.128.130.184/298BTNET-CUSTOMERFTIP008238283 IP MasterASSIGNED PAApr 29, 2024abuse@bt.com
via BT-INFRA
└ 81.128.130.192/298BTNET-CUSTOMERFTIP006933425 IP MasterASSIGNED PAMay 24, 2022abuse@bt.com
via BT-INFRA
└ 81.128.130.200/298BTNET-CUSTOMERFTIP009535886 IP MasterASSIGNED PANov 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.130.208/298ONE-BUSINESSBTN-26-00016-53212 IP MasterASSIGNED PAOct 14, 2026abuse@bt.com
via BT-INFRA
└ 81.128.130.216/298ONE-BUSINESSBTN-26-00015-08388 IP MasterASSIGNED PAOct 8, 2026abuse@bt.com
via BT-INFRA
└ 81.128.130.224/298BTNET-CUSTOMERFTIP006640446 IP MasterASSIGNED PADec 16, 2021abuse@bt.com
via BT-INFRA
└ 81.128.130.232/298BTNET-CUSTOMERFTIP006694944 IP MasterASSIGNED PADec 16, 2021abuse@bt.com
via BT-INFRA
└ 81.128.130.240/2816BTNET-CUSTOMERFTIP008015082 IP MasterASSIGNED PAApr 20, 2020abuse@bt.com
via BT-INFRA
└ 81.128.131.0/298MJ-CHURCH-PLANTFTIP003361320 Mj Church Plant LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.131.8/298EXETER-CASTLE-MANAGEMENT-COFTIP003356616 Exeter Castle Management Co LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.131.16/2816BIRMINGHAM-CITY-COUNCILFTIP003393857 Birmingham City CouncilASSIGNED PAFeb 12, 2015abuse@bt.com
via BT-INFRA
└ 81.128.131.32/298BTNET-CUSTOMERFTIP003488751 IP MasterASSIGNED PAAug 11, 2016abuse@bt.com
via BT-INFRA
└ 81.128.131.40/298DIA-CUSTOMERETHI16265318 IP MasterASSIGNED PAFeb 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.131.48/2816BTNET-CUSTOMERFTIP005917433 & FTIP008234285 IP MasterASSIGNED PAOct 12, 2023abuse@bt.com
via BT-INFRA
└ 81.128.131.96/2816BTNET-CUSTOMERFTIP004687627 IP MasterASSIGNED PAFeb 19, 2019abuse@bt.com
via BT-INFRA
└ 81.128.131.116/304BTNET-CUSTOMERFTIP006075026 IP MasterASSIGNED PANov 9, 2021abuse@bt.com
via BT-INFRA
└ 81.128.131.120/298BTNET-CUSTOMERFTIP004382836 IP MasterASSIGNED PAJul 30, 2018abuse@bt.com
via BT-INFRA
└ 81.128.131.128/2816MONKTON-COMBE-SCHOOL-LTDFTIP003205075 Monkton Combe School LtdASSIGNED PAFeb 14, 2015abuse@bt.com
via BT-INFRA
└ 81.128.131.144/2816BTNET-CUSTOMERFTIP005870424 IP MasterASSIGNED PANov 3, 2021abuse@bt.com
via BT-INFRA
└ 81.128.131.160/298ONE-BUSINESSBTN-26-00013-25759 IP MasterASSIGNED PASep 11, 2026abuse@bt.com
via BT-INFRA
└ 81.128.131.168/298BTNET-CUSTOMERFTIP003390931 IP MasterASSIGNED PAFeb 14, 2015abuse@bt.com
via BT-INFRA
└ 81.128.131.176/2816BTNET-CUSTOMERFTIP003361993 IP MasterASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.131.192/298STOWE-SCHOOLFTIP003400012 Stowe SchoolASSIGNED PAMar 10, 2015abuse@bt.com
via BT-INFRA
└ 81.128.131.208/2816BTNET-CUSTOMERFTIP003361504 IP MasterASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.131.224/2816BANKING-AUTOMATION-LTDFTIP003362020 Banking Automation LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.131.240/298CLINOVA-LIMITEDFTIP004560234 Clinova LimitedASSIGNED PANov 28, 2018abuse@bt.com
via BT-INFRA
└ 81.128.131.248/298MERCURY-COMPUTER-SYSTEMSFTIP003361191 Mercury Computer Systems LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.132.0/298BTNET-CUSTOMERFTIP007609930 IP MasterASSIGNED PAAug 14, 2023abuse@bt.com
via BT-INFRA
└ 81.128.132.8/298BTNET-CUSTOMERFTIP005521777 IP MasterASSIGNED PAApr 1, 2020abuse@bt.com
via BT-INFRA
└ 81.128.132.16/298BTNET-CUSTOMERFTIP005643622 IP MasterASSIGNED PAJul 3, 2020abuse@bt.com
via BT-INFRA
└ 81.128.132.24/298QTS-GROUPFTIP003361269 QTS Group LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.132.32/2732HENRY-SCHEIN-HOLDINGSFTIP003354841 Henry Schein UK Holdings LtdASSIGNED PAJun 10, 2014abuse@bt.com
via BT-INFRA
└ 81.128.132.64/2816BTNET-CUSTOMERFTIP006310127 IP MasterASSIGNED PAJun 9, 2021abuse@bt.com
via BT-INFRA
└ 81.128.132.80/298BTNET-CUSTOMERFTIP007348068 IP MasterASSIGNED PAJan 17, 2023abuse@bt.com
via BT-INFRA
└ 81.128.132.88/298BTNET-CUSTOMERIP MasterASSIGNED PAApr 17, 2020abuse@bt.com
via BT-INFRA
└ 81.128.132.96/2816BTNET-CUSTOMERFTIP008079084 IP MasterASSIGNED PAFeb 20, 2024abuse@bt.com
via BT-INFRA
└ 81.128.132.112/298BTNET-CUSTOMERFTIP008966889 IP MasterASSIGNED PAJan 22, 2025abuse@bt.com
via BT-INFRA
└ 81.128.132.120/298BTNET-CUSTOMERFTIP005251575 IP MasterASSIGNED PANov 11, 2019abuse@bt.com
via BT-INFRA
└ 81.128.132.128/298BTNET-CUSTOMERFTIP007555480 IP MasterASSIGNED PAJun 6, 2023abuse@bt.com
via BT-INFRA
└ 81.128.132.136/298BTNET-CUSTOMERFTIP009563087 IP MasterASSIGNED PANov 21, 2025abuse@bt.com
via BT-INFRA
└ 81.128.132.144/2816BTNET-CUSTOMERFTIP007283031 IP MasterASSIGNED PANov 29, 2022abuse@bt.com
via BT-INFRA
└ 81.128.132.160/298BTNET-CUSTOMERFTIP006691028 IP MasterASSIGNED PADec 16, 2021abuse@bt.com
via BT-INFRA
└ 81.128.132.168/298BTNET-CUSTOMERFTIP006671846 IP MasterASSIGNED PADec 16, 2021abuse@bt.com
via BT-INFRA
└ 81.128.132.176/2816DAVID-STAGG-AND-ASSOCIATES-LTDFTIP003359068 David Stagg & Associates LtdASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.132.192/298BTNET-CUSTOMERFTIP005648429 IP MasterASSIGNED PAJul 6, 2020abuse@bt.com
via BT-INFRA
└ 81.128.132.200/298CARELINES-GROUPFTIP003952351 CareLines Group LimitedASSIGNED PAOct 6, 2017abuse@bt.com
via BT-INFRA
└ 81.128.132.208/2816PURELY-COMPUTING-LIMITEDFTIP003314586-Purely Computing LimitedASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.132.224/2732UNIVERSITY-HOSPITALS-BIRMINGHAMFTIP003407431 University Hospitals Birmingham NHS TrustASSIGNED PAFeb 23, 2016abuse@bt.com
via BT-INFRA
└ 81.128.133.0/298BTNET-CUSTOMERFTIP007215421 IP MasterASSIGNED PANov 22, 2022abuse@bt.com
via BT-INFRA
└ 81.128.133.16/298ANDY-LOOS-LIMITEDFTIP003329054-Andy Loos LimitedASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.24/298ONE-BUSINESSBTN-26-00011-32693 IP MasterASSIGNED PAOct 23, 2026abuse@bt.com
via BT-INFRA
└ 81.128.133.32/2816NEVIS-RANGE-DEVELOPMENT-COMPANYFTIP003332047-Nevis Range Development CompanyASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.48/2816BTNET-CUSTOMERFTIP007554315 IP MasterASSIGNED PAMay 26, 2023abuse@bt.com
via BT-INFRA
└ 81.128.133.64/298BTNET-CUSTOMERFTIP009620285 IP MasterASSIGNED PAJan 2, 2026abuse@bt.com
via BT-INFRA
└ 81.128.133.72/298SCHUHFTIP004936633 Schuh LimitedASSIGNED PAJul 10, 2019abuse@bt.com
via BT-INFRA
└ 81.128.133.80/2816BTNET-CUSTOMERFTIP003355008 IP MasterASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.96/2816BTNET-CUSTOMERFTIP003370377 IP MasterASSIGNED PAJun 1, 2022abuse@bt.com
via BT-INFRA
└ 81.128.133.112/298ANDY-LOOS-LIMITEDFTIP003333273-Andy Loos LimitedASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.120/298CORPORATE-SOLUTIONS-LOGISTICS-LIMITEDFTIP003337325-Corporate Solutions logistics LimitedASSIGNED PAJun 11, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.128/2816SONEX-TECHNOLOGIESFTIP003393000 Sonex TechnologiesASSIGNED PAFeb 20, 2015abuse@bt.com
via BT-INFRA
└ 81.128.133.144/298BTNET-CUSTOMERFTIP006101633 IP MasterASSIGNED PAMay 3, 2017abuse@bt.com
via BT-INFRA
└ 81.128.133.152/298DIA-CUSTOMERETHI16472220 IP MasterASSIGNED PAJan 10, 2026abuse@bt.com
via BT-INFRA
└ 81.128.133.160/298BTNET-CUSTOMERFTIP008114105 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
└ 81.128.133.168/298BTNET-CUSTOMERFTIP008770080 IP MasterASSIGNED PAOct 11, 2024abuse@bt.com
via BT-INFRA
└ 81.128.133.176/298CANARA-BANKFTIP003362259 Canara BankASSIGNED PAJun 12, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.184/298BTNET-CUSTOMERFTIP006850029 IP MasterASSIGNED PAMar 25, 2022abuse@bt.com
via BT-INFRA
└ 81.128.133.192/298BTNET-CUSTOMERFTIP006933432 IP MasterASSIGNED PAMay 24, 2022abuse@bt.com
via BT-INFRA
└ 81.128.133.200/298BTNET-CUSTOMERFTIP008108746 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
└ 81.128.133.208/2816BTNET-CUSTOMERFTIP006460426 IP MasterASSIGNED PANov 3, 2021abuse@bt.com
via BT-INFRA
└ 81.128.133.224/298JACKS-LANE-ENERGYFTIP003362471 Jacks Lane Energy LtdASSIGNED PAJun 12, 2014abuse@bt.com
via BT-INFRA
└ 81.128.133.232/298BTNET-CUSTOMERFTIP007974724 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
└ 81.128.133.240/2816BTNET-CUSTOMERFTIP003379356 IP MasterASSIGNED PANov 30, 2022abuse@bt.com
via BT-INFRA
└ 81.128.134.0/2816BTNET-CUSTOMERFTIP007529047 IP MasterASSIGNED PAFeb 21, 2024abuse@bt.com
via BT-INFRA
└ 81.128.134.16/298Kiowa-LtdFTIP003362549 Kiowa LtdASSIGNED PAJun 12, 2014abuse@bt.com
via BT-INFRA
└ 81.128.134.24/298BTNET-CUSTOMERFTIP007985485 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
└ 81.128.134.32/2816BTNET-CUSTOMERFTIP003260500 IP MasterASSIGNED PAJul 2, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.48/298ONE-BUSINESSBTN-26-00014-86332 IP MasterASSIGNED PASep 11, 2026abuse@bt.com
via BT-INFRA
└ 81.128.134.56/298BTNET-CUSTOMERFTIP006483623 IP MasterASSIGNED PASep 21, 2021abuse@bt.com
via BT-INFRA
└ 81.128.134.64/298BTNET-CUSTOMERFTIP007348853 IP MasterASSIGNED PAJan 17, 2023abuse@bt.com
via BT-INFRA
└ 81.128.134.72/298DIA-CUSTOMERETHI16602364 IP MasterASSIGNED PAMay 21, 2026abuse@bt.com
via BT-INFRA
└ 81.128.134.80/298COFFETEKFTIP004824039 Coffetek LimitedASSIGNED PAMay 8, 2019abuse@bt.com
via BT-INFRA
└ 81.128.134.96/298BTNET-CUSTOMERFTIP004550976 IP MasterASSIGNED PADec 4, 2018abuse@bt.com
via BT-INFRA
└ 81.128.134.104/298BTNET-CUSTOMERFTIP005031221 IP MasterASSIGNED PAJan 11, 2023abuse@bt.com
via BT-INFRA
└ 81.128.134.112/298THE-INFORMATION-CONSULTING-SERVICES-LTDFTIP003359006 The Information Consulting Services LtdASSIGNED PAJun 12, 2014abuse@bt.com
via BT-INFRA
└ 81.128.134.120/298THE-ATTIC-ROOMFTIP003362204 The Attic RoomASSIGNED PAJun 12, 2014abuse@bt.com
via BT-INFRA
└ 81.128.134.128/298BTNET-CUSTOMERFTIP006042639 IP MasterASSIGNED PAFeb 4, 2021abuse@bt.com
via BT-INFRA
└ 81.128.134.136/298BTNET-CUSTOMERFTIP006050306 IP MasterASSIGNED PAFeb 4, 2021abuse@bt.com
via BT-INFRA
└ 81.128.134.144/2816BTNET-CUSTOMERFTIP005577620 IP MasterASSIGNED PAMay 13, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.160/298BTNET-CUSTOMERFTIP003460641 IP MasterASSIGNED PAApr 5, 2016abuse@bt.com
via BT-INFRA
└ 81.128.134.168/298BTNET-CUSTOMERFTIP007557491 IP MasterASSIGNED PAJun 6, 2023abuse@bt.com
via BT-INFRA
└ 81.128.134.176/298BTNET-CUSTOMERFTIP006827632 IP MasterASSIGNED PAMar 25, 2022abuse@bt.com
via BT-INFRA
└ 81.128.134.184/298WIRRAL-CAREFTIP003494578 Wirral Care ServicesASSIGNED PASep 1, 2016abuse@bt.com
via BT-INFRA
└ 81.128.134.192/298BTNET-CUSTOMERFTIP005486021 IP MasterASSIGNED PAMar 11, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.200/298BTNET-CUSTOMERFTIP005490448 IP MasterASSIGNED PAMar 11, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.208/298BTNET-CUSTOMERFTIP007040856 IP MasterASSIGNED PAAug 19, 2022abuse@bt.com
via BT-INFRA
└ 81.128.134.216/298BTNET-CUSTOMERFTIP005486038 IP MasterASSIGNED PAMar 11, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.224/298BTNET-CUSTOMERFTIP005492626 IP MasterASSIGNED PAMar 11, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.240/298BTNET-CUSTOMERFTIP005492251 IP MasterASSIGNED PAMar 11, 2020abuse@bt.com
via BT-INFRA
└ 81.128.134.248/298BTNET-CUSTOMERFTIP009655898 IP MasterASSIGNED PAFeb 2, 2026abuse@bt.com
via BT-INFRA
└ 81.128.135.0/298BTNET-CUSTOMERFTIP006472245 IP MasterASSIGNED PAAug 11, 2021abuse@bt.com
via BT-INFRA
└ 81.128.135.8/298BTNET-CUSTOMERFTIP006472238 IP MasterASSIGNED PAAug 11, 2021abuse@bt.com
via BT-INFRA
└ 81.128.135.16/298BTNET-CUSTOMERFTIP007543043 IP MasterASSIGNED PAMay 18, 2023abuse@bt.com
via BT-INFRA
└ 81.128.135.24/298JONATHAN-GALEFTIP003461259 Jonathan Gale T/A Jonathan Gale ConsultantsASSIGNED PAApr 18, 2016abuse@bt.com
via BT-INFRA
└ 81.128.135.48/298BTNET-CUSTOMERFTIP006255428 IP MasterASSIGNED PAMay 12, 2021abuse@bt.com
via BT-INFRA
└ 81.128.135.56/298Kiowa-LtdFTIP003362549 Kiowa LtdASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.64/298BTNET-CUSTOMERFTIP006706623 IP MasterASSIGNED PAJan 7, 2022abuse@bt.com
via BT-INFRA
└ 81.128.135.72/298LALEHAM-HEALTH-AND-BEAUTY-LTDFTIP003359013 Laleham Health & Beauty LtdASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.80/298BTNET-CUSTOMERFTIP006970840 IP MasterASSIGNED PAJul 15, 2022abuse@bt.com
via BT-INFRA
└ 81.128.135.88/298Kiowa-LtdFTIP003362570 Kiowa LtdASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.96/2816BTNET-CUSTOMERFTIP003362235 IP MasterASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.112/2816GENLAB-LTDFTIP003362136 Genlab LtdASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.128/2816BTNET-CUSTOMERFTIP003362198 IP MasterASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.144/298BTNET-CUSTOMERFTIP003776131 IP MasterASSIGNED PAJun 21, 2017abuse@bt.com
via BT-INFRA
└ 81.128.135.152/298KIOWA-LIMITEDFTIP003362556-Kiowa LimitedASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.160/2816CJ-ASSOCIATION-MANAGEMENT-LTDFTIP003362143 C J Association Management LtdASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.135.184/298BTNET-CUSTOMERFTIP005635030 IP MasterASSIGNED PAJun 30, 2020abuse@bt.com
via BT-INFRA
└ 81.128.135.192/2732BTNET-CUSTOMERFTIP007423680 IP MasterASSIGNED PASep 10, 2025abuse@bt.com
via BT-INFRA
└ 81.128.135.224/298BTNET-CUSTOMERFTIP008985286 IP MasterASSIGNED PAFeb 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.135.232/298BTNET-CUSTOMERFTIP007641312 IP MasterASSIGNED PAAug 17, 2023abuse@bt.com
via BT-INFRA
└ 81.128.135.240/2816BTNET-CUSTOMERFTIP007020636 IP MasterASSIGNED PAAug 3, 2022abuse@bt.com
via BT-INFRA
└ 81.128.136.32/298BTNET-CUSTOMERETHI15700724 IP MasterASSIGNED PASep 22, 2022abuse@bt.com
via BT-INFRA
└ 81.128.136.40/298BTNET-CUSTOMERFTIP007140273 IP MasterASSIGNED PASep 22, 2022abuse@bt.com
via BT-INFRA
└ 81.128.136.48/298PANASONIC-EUROPE-LIMITEDFTIP003357118-Panasonic Europe LimitedASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.136.56/298BTNET-CUSTOMERFTIP009817692 IP MasterASSIGNED PAJun 9, 2026abuse@bt.com
via BT-INFRA
└ 81.128.136.64/2816WATERWAYS-IRELANDFTIP003076477 Waterways IrelandASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.136.80/2816BTNET-CUSTOMERFTIP008987082 IP MasterASSIGNED PAFeb 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.136.96/2816URGENT-TECHNOLOGYFTIP003397251 Urgent Technology LtdASSIGNED PAMar 25, 2015abuse@bt.com
via BT-INFRA
└ 81.128.136.112/2816BTNET-CUSTOMERFTIP006489434 IP MasterASSIGNED PAAug 26, 2021abuse@bt.com
via BT-INFRA
└ 81.128.136.128/2816BTNET-CUSTOMERFTIP006039035 IP MasterASSIGNED PADec 6, 2023abuse@bt.com
via BT-INFRA
└ 81.128.136.192/298RED-COWFTIP003481585 Red Cow Creative LTDASSIGNED PAJun 29, 2016abuse@bt.com
via BT-INFRA
└ 81.128.136.200/298BTNET-CUSTOMERFTIP003362358 IP MasterASSIGNED PAJun 13, 2014abuse@bt.com
via BT-INFRA
└ 81.128.136.208/2816BTNET-CUSTOMERFTIP006618278 IP MasterASSIGNED PANov 3, 2021abuse@bt.com
via BT-INFRA
└ 81.128.136.224/298BTNET-CUSTOMERETHI15716426 IP MasterASSIGNED PAMay 24, 2022abuse@bt.com
via BT-INFRA
└ 81.128.136.232/298BTNET-CUSTOMERFTIP007334528 IP MasterASSIGNED PAJan 17, 2023abuse@bt.com
via BT-INFRA
└ 81.128.136.248/298BTNET-CUSTOMERFTIP008510686 IP MasterASSIGNED PAOct 11, 2024abuse@bt.com
via BT-INFRA
└ 81.128.137.0/298LUTRONS-LTDFTIP004840633 Lutrons LtdASSIGNED PAJul 22, 2019abuse@bt.com
via BT-INFRA
└ 81.128.137.8/298ABEL-ALARMFTIP003450918 Abel Alarm Co LtdASSIGNED PAJan 22, 2016abuse@bt.com
via BT-INFRA
└ 81.128.137.16/298BTNET-CUSTOMERFTIP006548681 IP MasterASSIGNED PASep 21, 2021abuse@bt.com
via BT-INFRA
└ 81.128.137.24/298BTNET-CUSTOMERFTIP005158867 IP MasterASSIGNED PANov 10, 2016abuse@bt.com
via BT-INFRA
└ 81.128.137.32/2816BTNET-CUSTOMERFTIP005296033 IP MasterASSIGNED PANov 3, 2021abuse@bt.com
via BT-INFRA
└ 81.128.137.48/298BTNET-CUSTOMERFTIP008267085 IP MasterASSIGNED PAMay 20, 2024abuse@bt.com
via BT-INFRA
└ 81.128.137.56/298BTNET-CUSTOMERFTIP008994684 IP MasterASSIGNED PAFeb 5, 2025abuse@bt.com
via BT-INFRA
└ 81.128.137.64/298ONE-BUSINESSBTN-26-00008-75510 IP MasterASSIGNED PAMay 12, 2026abuse@bt.com
via BT-INFRA
└ 81.128.137.72/298DIA-CUSTOMERETHI16554226 IP MasterASSIGNED PAFeb 2, 2026abuse@bt.com
via BT-INFRA
└ 81.128.137.80/2816BTNET-CUSTOMERFTIP006934118 IP MasterASSIGNED PAJun 1, 2022abuse@bt.com
via BT-INFRA
└ 81.128.137.96/298BTNET-CUSTOMERFTIP008108906 IP MasterASSIGNED PAFeb 19, 2024abuse@bt.com
via BT-INFRA
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A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,097,152 addresses
TypeAddressesShareRanges
Residential1,916,40091%5,099
Business180,6488.6%17,406
Mobile104<0.01%5

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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