British Telecommunications PLC

United Kingdom
Hosts 54,222 Domains
11,448,832 IP Addresses
Allocated 19 years ago
Netblock Company Num of IPs Crisil Limited 256 British Telecommunications PLC 1,048,576 BONTBLOCK 256 Cognizant Technology Solution India Pvt Ltd, India Net block 1,024 British Telecom 65,536 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 Atomic Weapons Establishment 256 A.C. Nielsen Company 256 Lloyds Banking Group PLC 1,024 Lloyds Banking Group PLC 1,024 Legaco Networks B.V. 1,024 Toronto Dominion Bank 256 Toronto Dominion Bank 512 AKER SOLUTIONS ASA 512 Royal Mail Group Limited 4,096 Royal Mail Group Limited 2,048 Royal Mail Group Limited 32,768 Royal Mail Group Limited 16,384 Royal Mail Group Limited 4,096 Royal Mail Group Limited 2,048 Royal Mail Group Limited 2,048 INNOGY Business Services UK Limited 65,536 INNOGY Business Services UK Limited 256 INNOGY Business Services UK Limited 256 Quantum Corporation 512 British Telecommunications plc 262,144 British Telecommunications plc 65,536 FTIP003165225 1,024 FTIP003902813 1,024 Department for Environment, Food and Rural Affairs 256 Department for Environment, Food and Rural Affairs 256 Department for Environment, Food and Rural Affairs 256 Department for Environment, Food and Rural Affairs 512 Department for Environment, Food and Rural Affairs 1,024 TRW Automotive 65,536 Kate Spade Holdings LLC 256 Avon & Somerset Constabulary 512 Avon & Somerset Constabulary 256 Avon & Somerset Constabulary 256 CGI IT UK Ltd. 65,536 BT-CENTRAL-PLUS 8,192 4000 Parkway 256 4000 Parkway 256 4000 Parkway 256 Technology Business centre #753 512 Dixons Stores Group 256 Dixons Stores Group 256 Dixons Stores Group 256 BT Public Internet Service 65,536 Viad Corp 256 Viad Corp 256 Darkness Reigns (Holding) B.V. 1,024 Server Destroyers LLC 256 Server Destroyers LLC 256 Server Destroyers LLC 256 Server Destroyers LLC 256 Eclipse Internet - Bluewave Internet Limted #683 512 Eclipse Internet / Lightwork Design #379 1,024 KCOM BT sub-allocation 2,048 KCOM BT sub-allocation 2,048 Darkness Reigns (Holding) B.V. 1,024 Grid Hosting Limited 256 Sagentia Ltd 256 Seqirus UK Limited 256 Aytel Systems Ltd 1,024 OOC ISP LLC 256 Cheshire Datasystems Limited 256 OOC ISP LLC 256 Buechele VPS UG (haftungsbeschraenkt) 256 256 Server Destroyers LLC 256 Server Destroyers LLC 256 Server Destroyers LLC 256 Server Destroyers LLC 256 OOC ISP LLC 256 Server Destroyers LLC 256 Server Destroyers LLC 256 Legaco Networks B.V. 1,024 Nibs Solutions Ltd 1,024 BI Worldwide Ltd 1,024 Aircraft Research Association Limited 256 Tarmac Holdings Limited 256 Hewlett-Packard Company 256 British Telecom 256 British Telecom 256 British Telecom 256 British Telecom 256 British Telecom 256 British Telecom 256 British Telecom 256
Netblock Company
2001:4878:c259::/48 Akamai Technologies, Inc.
2a00:2380::/25 British Telecom BTnet Management container
2a01:4c8:f401::/48 EE Limited
2a02:ee80:4176::/47 Accenture B. V.
2a03:1e82:90ff::/48 Bayerische Motoren Werke Aktiengesellschaft
Data from ASN API

WHOIS Details

as-block:       AS2830 - AS2879
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:18Z
last-modified:  2018-11-22T15:27:18Z
source:         RIPE

aut-num:        AS2856
as-name:        BT-UK-AS
descr:          BTnet UK Regional network
org:            ORG-BPIS1-RIPE
mp-import:      from AS5400 action pref=10; accept AS-BT-EU
mp-import:      from AS5400 action pref=14; accept ANY
mp-export:      to AS-ANY announce AS-BTGB
mp-import:      from AS702 action pref=11; accept AS702:RS-UK
mp-import:      from AS714 action pref=11; accept AS714
mp-import:      from AS786 action pref=11; accept AS-JANETPLUS
mp-import:      afi ipv4.unicast from AS1248 action pref=11; accept AS-HERE
mp-import:      afi ipv4.unicast from AS1267 action pref=11; accept AS-INFOSTRADA
mp-import:      from AS2119 action pref=11; accept AS-TELENOR
mp-import:      afi ipv4.unicast from AS2529 action pref=11; accept AS2529
mp-import:      from AS2818 action pref=11; accept AS-BBC
mp-import:      from AS2906 action pref=11; accept AS2906
mp-import:      from AS3223 action pref=11; accept AS3223
mp-import:      from AS3303 action pref=11; accept AS-SWCMGLOBAL
mp-import:      from AS4766 action pref=11; accept AS4766
mp-import:      afi ipv4.unicast from AS4788 action pref=11; accept AS4788
mp-import:      afi ipv4.unicast from AS5089 action pref=11; accept AS-NTLI
mp-import:      from AS5413 action pref=11; accept AS5413
mp-import:      from AS5459 action pref=11; accept AS-LINX
mp-import:      afi ipv4.unicast from AS5466 action pref=11; accept AS-EIRCOM
mp-import:      afi ipv4.unicast from AS5503 action pref=11; accept AS-RMIFL
mp-import:      afi ipv4.unicast from AS5588 action pref=11; accept AS-GTS-CE;
mp-import:      from AS5607 action pref=11; accept AS5607
mp-import:      afi ipv4.unicast from AS5631 action pref=11; accept AS-LUMINET
mp-import:      from AS6461 action pref=11; accept AS6461
mp-import:      from AS6667 action pref=11; accept AS-EUNETIP
mp-import:      afi ipv4.unicast from AS6677 action pref=11; accept AS-ICENET-RIX
mp-import:      afi ipv4.unicast from AS6730 action pref=11; accept AS-GLOBAL
mp-import:      afi ipv4.unicast from AS6774 action pref=11; accept AS6774:AS-BICS-TRANSIT
mp-import:      from AS6908 action pref=11; accept AS6908
mp-import:      afi ipv4.unicast from AS7342 action pref=11; accept AS7342
mp-import:      from AS8075 action pref=11; accept AS8075
mp-import:      from AS8220 action pref=11; accept AS8220
mp-import:      afi ipv4.unicast from AS8359 action pref=11; accept AS-MTU
mp-import:      afi ipv6.unicast from AS8359 action pref=11; accept AS-MTU-V6
mp-import:      from AS8403 action pref=11; accept AS8403
mp-import:      from AS8426 action pref=11; accept AS-CLARANET
mp-import:      from AS8468 action pref=11; accept AS8468
mp-import:      from AS8551 action pref=11; accept AS-BEZEQINT
mp-import:      afi ipv4.unicast from AS8553 action pref=11; accept AS-AVENSYS
mp-import:      from AS8560 action pref=11; accept AS8560
mp-import:      afi ipv4.unicast from AS8607 action pref=11; accept AS-ATLAS
mp-import:      afi ipv4.unicast from AS8657 action pref=11; accept AS-CPRM
mp-import:      from AS8757 action pref=11; accept AS8757
mp-import:      from AS8781 action pref=11; accept AS-QTEL-SET
mp-import:      afi ipv4.unicast from AS8897 action pref=11; accept AS-KCOMSPN
mp-import:      from AS8902 action pref=11; accept AS8902
mp-import:      afi ipv4.unicast from AS8966 action pref=11; accept AS-EMIX
mp-import:      from AS9002 action pref=11; accept AS9002
mp-import:      from AS9009 action pref=11; accept AS-GBXSCUST-FULL
mp-import:      afi ipv4.unicast from AS9318 action pref=11; accept AS9318
mp-import:      afi ipv4.unicast from AS9505 action pref=11; accept AS-TWIG
mp-import:      from AS10310 action pref=11; accept AS-YAHOO
mp-import:      from AS12200 action pref=11; accept AS12200
mp-import:      afi ipv4.unicast from AS12390 action pref=11; accept AS-KINGSTONUK
mp-import:      from AS12576 action pref=11; accept AS12576
mp-import:      from AS12654 action pref=11; accept AS12654
mp-import:      afi ipv4.unicast from AS12713 action pref=11; accept AS-OTEGLOBE
mp-import:      from AS12989 action pref=11; accept AS12989
mp-import:      afi ipv4.unicast from AS13030 action pref=11; accept AS13030:AS-INIT7
mp-import:      from AS13037 action pref=11; accept AS-ZEN;
mp-import:      from AS13213 action pref=11; accept AS-UK2NET
mp-import:      afi ipv4.unicast from AS13237 action pref=11; accept AS-LAMBDANET
mp-import:      from AS13285 action pref=11; accept AS-OPAL
mp-import:      from AS13335 action pref=11; accept AS13335
mp-import:      from AS14340 action pref=11; accept AS14340
mp-import:      from AS15133 action pref=11; accept AS15133
mp-import:      from AS15169 action pref=11; accept AS15169
mp-import:      afi ipv4.unicast from AS15412 action pref=11; accept AS-FLAGP
mp-import:      afi ipv4.unicast from AS15533 action pref=11; accept AS-SASEUROPE
mp-import:      afi ipv6.unicast from AS15533 action pref=11; accept AS-SASEUROPE6
mp-import:      afi ipv4.unicast from AS15557 action pref=11; accept AS-LDCOMNET
mp-import:      from AS15692 action pref=11; accept AS-RAZORBLUE
mp-import:      from AS16265 action pref=11; accept AS-LEASEWEB
mp-import:      from AS16276 action pref=11; accept AS-OVH
mp-import:      from AS16509 action pref=11; accept AS16509
mp-import:      from AS19679 action pref=11; accept AS19679
mp-import:      from AS20712 action pref=11; accept AS-AA
mp-import:      from AS20799 action pref=11; accept AS-DATANETUK
mp-import:      from AS20860 action pref=11; accept AS-IOMART
mp-import:      from AS20940 action pref=11; accept AS-AKAMAI
mp-import:      afi ipv4.unicast from AS21345 action pref=11; accept AS21345
mp-import:      afi ipv4.unicast from AS21371 action pref=11; accept AS-EQUINIX-UK
mp-import:      from AS21396 action pref=11; accept AS-NETCONNEX
mp-import:      from AS22697 action pref=11; accept AS22697
mp-import:      from AS22822 action pref=11; accept AS22822
mp-import:      afi ipv4.unicast from AS24429 action pref=11; accept AS24429
mp-import:      from AS24916 action pref=11; accept AS-ORBITAL
mp-import:      from AS25180 action pref=11; accept AS-EXPONENTIAL-e
mp-import:      from AS25369 action pref=11; accept AS-BANDWIDTH
mp-import:      afi ipv4.unicast from AS25577 action pref=11; accept AS-C4L
mp-import:      afi ipv4.unicast from AS29017 action pref=11; accept AS-GYRON
mp-import:      from AS29550 action pref=11; accept AS-AS29550
mp-import:      from AS29791 action pref=11; accept AS29791
mp-import:      afi ipv4.unicast from AS30081 action pref=11; accept AS30081
mp-import:      from AS30844 action pref=11; accept AS-LIQUID
mp-import:      from AS30914 action pref=11; accept AS-IOKO
mp-import:      afi ipv4.unicast from AS31472 action pref=11; accept AS31472
mp-import:      afi ipv4.unicast from AS31655 action pref=11; accept AS31655
mp-import:      afi ipv4.unicast from AS31727 action pref=11; accept AS-NODE4
mp-import:      from AS32590 action pref=11; accept AS32590
mp-import:      afi ipv4.unicast from AS32787 action pref=11; accept AS-PROLE
mp-import:      from AS32934 action pref=11; accept AS32934
mp-import:      from AS33438 action pref=11; accept AS33438
mp-import:      afi ipv4.unicast from AS34270 action pref=11; accept AS-INETC
mp-import:      afi ipv4.unicast from AS34655 action pref=11; accept AS-DDITS
mp-import:      afi ipv4.unicast from AS34790 action pref=11; accept AS34790:AS-CUSTOMER
mp-import:      from AS35028 action pref=11; accept AS-MULTIPLAY
mp-import:      from AS35266 action pref=11; accept AS-EXN
mp-import:      afi ipv4.unicast from AS35834 action pref=11; accept AS35834
mp-import:      afi ipv4.unicast from AS37100 action pref=11; accept AS-SET-SEACOM
mp-import:      from AS39122 action pref=11; accept AS-BLACKNIGHT
mp-import:      afi ipv4.unicast from AS39202 action pref=11; accept AS-GCAP
mp-import:      afi ipv4.unicast from AS39326 action pref=11; accept AS-GOSCOMB
mp-import:      afi ipv6.unicast from AS39326 action pref=11; accept AS-GOSCOMB-V6
mp-import:      afi ipv4.unicast from AS40627 action pref=11; accept AS40627
mp-import:      from AS41000 action pref=11; accept AS-FREETHOUGHT
mp-import:      afi ipv4.unicast from AS41107 action pref=11; accept AS-BACKBONECONNECT-CUSTOMERS
mp-import:      afi ipv4.unicast from AS41690 action pref=11; accept AS-DAILYMOTION
mp-import:      afi ipv4.unicast from AS41695 action pref=11; accept AS-VOSTRON
mp-import:      from AS41811 action pref=11; accept AS-CONVERGENCE
mp-import:      from AS42689 action pref=11; accept AS26677:AS-GigaPoP
mp-import:      from AS42831 action pref=11; accept AS-UKSERVERS
mp-import:      afi ipv4.unicast from AS43531 action pref=11; accept AS-IXREACH
mp-import:      afi ipv4.unicast from AS44444 action pref=11; accept AS-WHS-EU
mp-import:      from AS44684 action pref=11; accept AS-MYTHIC
mp-import:      from AS45014 action pref=11; accept AS-HOSTIT-MK
mp-import:      from AS46489 action pref=11; accept AS46489
mp-import:      from AS47474 action pref=11; accept AS-Virtual1
mp-import:      afi ipv4.unicast from AS47480 action pref=11; accept AS-BTS
mp-import:      from AS47622 action pref=11; accept AS47622
mp-import:      afi ipv4.unicast from AS47762 action pref=11; accept AS47762
mp-import:      from AS49544 action pref=11; accept AS-INTERACTIVE3D
mp-import:      afi ipv4.unicast from AS50245 action pref=11; accept AS-SERVEREL
mp-import:      afi ipv4.unicast from AS50300 action pref=11; accept AS-CUSTDC
mp-import:      from AS50304 action pref=11; accept AS-BLIX
mp-import:      afi ipv4.unicast from AS50468 action pref=11; accept AS50468
mp-import:      from AS51048 action pref=11; accept AS-NEXTCONNEX
mp-import:      from AS51945 action pref=11; accept AS-CONNETU
mp-import:      from AS54113 action pref=11; accept AS54113
mp-import:      afi ipv4.unicast from AS54994 action pref=11; accept AS54994
mp-import:      from AS55256 action pref=11; accept AS55256
mp-import:      afi ipv4.unicast from AS57811 action pref=11; accept AS-ATDS-SERVICES
mp-import:      from AS57976 action pref=11; accept AS57976
mp-import:      from AS60068 action pref=11; accept AS-CDN77
mp-import:      from AS61012 action pref=11; accept AS-LIVEDRIVE
mp-import:      afi ipv4.unicast from AS61124 action pref=11; accept AS-MARSTONS
mp-import:      from AS61323 action pref=11; accept AS-UKFAST
mp-import:      afi ipv4.unicast from AS61337 action pref=11; accept AS-GXT
mp-import:      afi ipv4.unicast from AS62044 action pref=11; accept AS62044
mp-import:      from AS62240 action pref=11; accept AS-CLOUVIDER
mp-import:      from AS199524 action pref=11; accept AS-GCORE
mp-import:      afi ipv4.unicast from AS199592 action pref=11; accept AS199592
mp-import:      from AS202818 action pref=11; accept AS202818
admin-c:        FLS15-RIPE
tech-c:         BS1474-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:        Peering contact:
remarks:        Support contact:
remarks:        24*7 NMC contact: 0800 811 343 option 3
remarks:        BTnet abuse:
remarks:        BTopenworld abuse:
remarks:        ------------------------------------------------
mnt-by:         BTNET-INFRA-MNT
created:        2002-08-30T11:12:47Z
last-modified:  2020-06-23T17:37:01Z
source:         RIPE
abuse-c:        AR13878-RIPE
abuse-org:      ORG-BPIS1-RIPE

organisation:   ORG-BPIS1-RIPE
org-name:       British Telecommunications PLC
country:        GB
org-type:       LIR
address:        PP1, Floor1, Orion, Adastral Park, Martlesham Heath
address:        IP5 3RE
address:        Ipswich
address:        UNITED KINGDOM
phone:          +44 (0)20 7356 5000
abuse-c:        AR13878-RIPE
mnt-ref:        BTNET-MNT
mnt-ref:        BTNET-INFRA-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BTNET-INFRA-MNT
admin-c:        FLS15-RIPE
admin-c:        GW3285-RIPE
admin-c:        MS35380-RIPE
admin-c:        GF1231-RIPE
created:        2004-04-17T12:11:50Z
last-modified:  2021-04-08T13:14:28Z
source:         RIPE

role:           BTnet Support
address:        Adhara
address:        Adastral Park
address:        Martlesham Heath
address:        Ipswich
address:        SUFFLK IP5 3RE
address:        GB
phone:          +44 800 0858963 5
phone:          +44 1473 336231
admin-c:        FLS15-RIPE
tech-c:         BS1474-RIPE
nic-hdl:        BS1474-RIPE
remarks:        For all queries contact
remarks:        Please send delisting issues to
mnt-by:         BTNET-MNT
created:        2002-04-30T07:54:10Z
last-modified:  2009-11-19T15:52:52Z
source:         RIPE

role:           FIRST LINE SUPPORT
address:        Room 211
address:        Telephone Exchange (CWT-LA)
address:        Cawthorne Street
address:        Lancaster
address:        Lancashire
address:        LA1 1TG
address:        UK
phone:          +44 1133 828953
fax-no:         +44 1524 381064
remarks:        trouble: 1st Line Support
remarks:        Please send delisting issues to
nic-hdl:        FLS15-RIPE
mnt-by:         BTNET-INFRA-MNT
created:        2002-08-29T06:26:48Z
last-modified:  2020-07-01T11:01:11Z
source:         RIPE

mntner:         as2856
admin-c:        JA6431-RIPE
auth:           SSO
mnt-by:         as2856
created:        2018-08-23T15:46:37Z
last-modified:  2018-08-23T15:46:37Z
source:         RIPE

person:         Jamal Ahmed
address:        31 Tame close Walsall West Midland WS1 4BA
phone:          +448712884044
nic-hdl:        JA6431-RIPE
mnt-by:         jamalahmed
created:        2014-08-30T00:39:45Z
last-modified:  2014-08-30T00:39:45Z
source:         RIPE
Data from ASN API

Hosted Domains

There are 54,222 domain names hosted across 15,695 IP addresses on this ASN.

IP Address Domain Domains on this IP 5,678 1,388 1,183 757 726 633 633 598 549 505 461 450 449 435 434 278 232 222 219 216 183 181 173 171 163 156 153 149 145 142 142 140 138 137 134 132 127 125 125 125 121 121 117 117 116 113 112 110 108 101

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity


There are 41 peers for this ASN.

Peers Name
AS13030 Init7 (Switzerland) Ltd.
AS13237 euNetworks GmbH
AS14061 DigitalOcean, LLC
AS14630 Invesco Group Services, Inc.
AS15412 Reliance Globalcom Limited
AS15830 Equinix Connect
AS1828 Unitas Global LLC
AS199524 G-Core Labs S.A.
AS2119 Telenor Norge AS
AS25369 Hydra Communications Ltd
AS30844 Liquid Telecommunications Ltd
AS3170 Etheroute Ltd
AS3303 Swisscom (Schweiz) AG
AS35266 EX Networks Limited
AS37100 SEACOM Limited
AS39122 Blacknight Internet Solutions Limited
AS42473 ANEXIA Internetdienstleistungs GmbH
AS43531 IX Reach Ltd
AS4455 IX Reach Ltd
AS44684 Mythic Beasts Ltd
AS4788 TM Net, Internet Service Provider
AS50300 CustodianDC Limited
AS50304 Blix Solutions AS
AS5400 British Telecommunications PLC
AS5413 Daisy Corporate Services Trading Ltd
AS60068 Datacamp Limited
AS62240 Clouvider Limited
AS6461 Zayo Bandwidth
AS6730 Sunrise Communications AG
AS6908 Six Degrees Technology Group Limited
AS8220 COLT Technology Services Group Limited
AS8426 Claranet Limited
AS8607 Digital Space Group Limited
AS9002 RETN Limited
AS9009 M247 Ltd
AS9505 Taiwan Internet Gateway
Data from ASN API


There are 2 upstreams for this ASN.

upstreams Name
AS5400 British Telecommunications PLC
AS6461 Zayo Bandwidth
Data from ASN API


There are 191 downstreams for this ASN.

Downstreams Name
AS10666 Allergan, Inc.
AS11031 Orbis Investments (Canada) Limited
AS11528 Photronics Inc.
AS11757 Whirlpool Corporation
AS12222 Akamai Technologies, Inc.
AS12440 Hughes Network Systems GmbH
AS1294 NTT DATA Services Holdings Corporation
AS13205 British Telecommunications PLC
AS13458 Davidson Kempner Capital Management LLC
AS14766 Magnetar Capital LLC
AS14931 The St. Paul Travelers Companies, Inc.
AS15084 Convergys Corp.
AS15141 Bausch & Lomb
AS15248 Metaswitch Networks Corp.
AS15499 Computacenter Management GmbH trading as Computacenter AG & Co.oHG
AS15601 Baring Investment Services Ltd
AS15689 Advanced IT Services Nottingham Ltd
AS15865 Elliott Advisors UK (Ltd)
AS16807 IBM - Events Infrastructure
AS16931 Global Payments, Inc.
AS17903 Cognizant Technology Solutions India Pvt Ltd,
AS19305 Transaction Network Services, Inc.
AS19428 Phillips 66 Company
AS197085 Sykes Global Services Ltd
AS197409 Co-operative Group Limited
AS197568 Cardif Pinnacle Insurance Management Services PLC
AS198032 Cambridge Assessment
AS19812 RADIANZ Americas, Inc.
AS198189 Crown Office and Procurator Fiscal Service
AS198300 FES Ltd
AS199262 Transport for London
AS200614 Veritas Technologies (UK) Limited
AS200870 Retail Technology Services Ltd
AS201528 Orchid Cellmark Ltd
AS201529 Orchid Cellmark Ltd
AS201536 Sandyx Systems Limited
AS20163 Sunrise Medical, Inc.
AS201971 CreeperHost LTD
AS202466 QBE Management Services (UK) Limited
AS202679 Deltatre Limited
AS202787 Withers LLP
AS202907 Atomic IT Limited
AS203171 Chi Technology Ltd
AS203483 Garmin International, Inc.
AS204045 Compass Plus (Great Britain) Limited
AS204103 Locheilnet CIC
AS204322 New York Times Limited
AS204819 WPM Software Ltd
AS205006 Holland & Barrett International Limited
AS205080 Societe Internationale de Telecommunications Aeronautiques
AS205114 The WEST Retail group LImited
AS205514 CORVID Protect Holdings Limited
AS205693 Driver & Vehicle Licensing Agency
AS206166 Schroder Investment Management Limited
AS206237 Barclays Bank PLC
AS206335 Hudson Global Resources Ltd
AS206467 Protech Communications Ltd
AS206686 Nominet UK
AS206773 MSX International Ltd
AS20695 Capital One (Europe) Plc
AS207039 Satellite Applications Catapult Limited
AS20705 HSBC Bank plc
AS207072 Nigsun Limited
AS207087 Pay360 Ltd
AS207120 JHCS Ltd
AS207245 DSTI Holdings Limited
AS207310 Cinos Communications Services Limited
AS207312 BluJay Solutions Ltd
AS207552 Cambridge Consultants Limited
AS209258 TSYS Europe (Netherlands) B.V.
AS20955 Proquest Information and Learning Ltd
AS209997 Stanley Security Solutions Ltd
AS210326 NTT Security GmbH
AS21218 EBC Group (UK) Ltd
AS212329 Netcraft Ltd
AS212565 Specsavers Optical Group Limited
AS21267 Wavenet Limited
AS21296 Pricewaterhouse Coopers Services Ltd
AS21301 Royal Bank of Scotland plc
AS2134 Santander Global Technology, S.L.U
AS21464 EDF Trading Ltd
AS21470 South West Communications Group Ltd
AS21758 Modine Manufacturing Company
AS21874 MMC
AS22775 Moore Capital Management
AS24650 Charles Stanley & Co Ltd
AS24677 TNS Group Holdings Limited
Data from ASN API

Related Networks


Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS2856 at robtex.

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