AS2856 British Telecommunications PLC
General Info - AS2856
11,633,920
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 2001:4878:c259::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2a00:2380::/25 | 10,141,204,801,825,835,211,973,625,643,008 | |
| 2a01:4c8:f401::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2a02:ee80:4176::/47 | 2,417,851,639,229,258,349,412,352 | |
| 2a03:1e82:90ff::/48 | 1,208,925,819,614,629,174,706,176 |
Downstreams
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- AS2134 Santander Global Technology S.L.U
- AS2535 BP America Inc.
- AS2559 Visa International Service Association
- AS3738 State Street Bank and Trust Company
- AS3917 Shell Information Technology International B.V.
- AS6075 Lockheed Martin Corporation
- AS6468 Easylink Services Corporation
- AS6871 British Telecommunications PLC
- AS7358 The Dun & Bradstreet Corporation
- AS8336 The Innovation Group (EMEA) Ltd
- AS8435 Lloyds Banking Group PLC
- AS8640 Zurich Insurance Company AG
- AS10655 Bureau of National Affairs Inc.
- AS11031 Orbis Investments (Canada) Limited
- AS11528 Photronics Inc.
- AS11757 Whirlpool Corporation
- AS11939 The Mathworks Inc.
- AS12222 Akamai Technologies Inc.
- AS12440 Hughes Network Systems GmbH
- AS13205 British Telecommunications PLC
- AS13458 Davidson Kempner Capital Management LLC
- AS14931 The St. Paul Travelers Companies Inc.
- AS15141 Bausch & Lomb
- AS15248 Metaswitch Networks Corp.
- AS15499 Computacenter Management Gmbh Trading As Computacenter Ag & Co.Ohg
- AS15601 Baring Investment Services Ltd
- AS15865 Elliott Advisors UK (LTD)
- AS16477 Nielsen Consumer LLC
- AS16525 KBR
- AS16807 Kyndryl
- AS16931 Global Payments Inc.
- AS17903 Cognizant Technology Solutions India Pvt Ltd
- AS19305 Transaction Network Services Inc.
- AS19428 Phillips 66 Company
- AS19812 Radianz Americas Inc.
- AS20163 Sunrise Medical Inc.
- AS20464 HP Inc.
- AS20695 Capital One (Europe) PLC
- AS20705 HSBC Bank PLC
- AS20955 Proquest Information and Learning Limited
- AS21054 Natwest Markets PLC
- AS21110 Entain Corporate Services Limited
- AS21208 VML Young & Rubicam SL
- AS21218 EBC Group (UK) Ltd
- AS21267 Wavenet Limited
- AS21296 PricewaterhouseCoopers Services Limited
- AS21301 Natwest Markets PLC
- AS21433 Accenture UK Limited
- 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 TAYLOR-NELSON-SOFRES-AS
- AS24775 Qinetiq Limited
- AS25049 Shell Information Technology International B.V.
- AS25050 VocaLink Ltd
- AS25343 Coventry University Computing Services
- AS25421 John Lewis Plc.
- AS25585 Kencomp Internet Ltd
- AS27447 Schulte Roth & Zabel LLP
- AS28863 Thales UK Limited
- AS29033 Eckoh UK Limited
- AS29888 Unum Group
- AS31632 OAG Aviation Worldwide Limited
- AS33001 Cravath Swaine & Moore LLP
- AS33442 Zebra Technologies Corporation
- AS33680 Teleperformance USA
- AS33981 Total System Services Processing Europe Limited
- AS35707 Scottish Power UK PLC
- AS35928 Beckman Coulter Inc.
- AS36224 HCL America Inc
- AS38936 Herman Miller LTD
- AS39173 SS&C Financial Services International Limited
- AS39550 KPMG LLP
- AS39552 WBA (IT Services) International Limited
- AS40126 Molson Coors Beverage Company
- AS41021 Ebuyer UK Limited
- AS41373 National Health Service
- AS41380 ALD Automotive Ltd
- AS41988 PPP Taking Care Ltd
- AS42536 Deloitte LLP
- AS43014 Kirkland & Ellis International LLP
- AS43259 Leidos Innovations UK Ltd
- AS44268 JCB Excavators Ltd
- AS44371 Paypoint Network Limited
- AS44480 Brevan Howard Asset Management LLP
- AS44617 HBK Europe Management LLP
- AS47113 Suffolk Life Pensions Limited
- AS47534 VocaLink Ltd
- AS48549 Bringo Group Ltd
- AS48688 Thales UK Ltd
- AS49318 Telefonica Tech UK Managed Services Ltd
- AS50108 Electronic Arts Limited
- AS50203 Reynolds and Reynolds Limited
- AS50445 Wirefast Limited
- AS50826 Moelis & Company UK LLP
- AS50948 Amdocs (UK) Limited
- AS51953 Sagentia Ltd
- AS52019 ORCL-EMEA-AS
- AS56644 Fundtech Financial Messaging Ltd
- AS56745 Kalnet4u Ltd
- AS57002 William Hill Organization Ltd
- AS59345 CME Group Singapore Operations Pte LDT.
- AS59445 ICC Networks Ltd
- AS59451 Al-Bank Al-Arabi PLC. CO.
- AS60220 Electronic Arts Limited
- AS60677 DL Insurance Services Limited
- AS60925 BPP Services Limited
- AS60962 Foreign and Commonwealth Office
- AS63112 Service-now.com
- AS63399 Dialpad Inc.
- AS197085 Sykes Global Services Ltd
- AS197122 Tenerity Limited
- AS197409 Co-operative Group Limited
- AS197568 Pinnacle Insurance Management Services PLC
- AS198300 FES Ltd
- AS198386 Thrive Operations Limited
- AS199262 TfL Fares Payment System AS Number
- AS199462 NetISP Ltd
- AS200614 Veritas Technologies (UK) Limited
- AS200961 FIL Investment Management Limited
- AS201528 Orchid Cellmark Ltd
- AS201529 Orchid Cellmark Ltd
- AS201536 Sandyx Systems Limited
- AS201971 CreeperHost LTD
- AS202206 Fat Media Ltd
- AS202364 Grid Hosting Limited
- AS202466 QBE Management Services (UK) Limited
- AS202679 Deltatre Limited
- AS202787 Withers LLP
- AS202818 Lumen Technologies UK Limited
- AS202907 Atomic IT Limited
- AS203171 Chi Technology Ltd
- AS203483 Garmin International Inc.
- AS204045 Compass Plus (Great Britain) Limited
- AS204322 New York Times Limited
- AS204819 WPM Software Ltd
- AS205006 Holland & Barrett International Limited
- AS205114 The WEST Retail group LImited
- AS205514 CORVID Protect Holdings Limited
- AS205693 Driver & Vehicle Licensing Agency
- AS206132 Abbott Rapid DX International Limited
- AS206146 Paysend Technology Limited
- AS206237 Barclays Bank PLC
- AS206335 Morgan Philips UK Limited
- AS206467 Protech Communications Ltd
- AS206686 Nominet UK
- AS206773 MSX International Ltd
- AS207039 Satellite Applications Catapult Limited
- AS207072 Nigsun Limited
- AS207087 PAY360 Ltd
- AS207312 Blujay Solutions Ltd
- AS209258 TSYS Europe (Netherlands) B.V.
- AS209997 Securitas Technology Limited
- AS210326 NTTS-GIS
- AS210988 London Borough Of Hammersmith & Fulham
- AS211303 Electronic Arts Limited
- AS211389 Briant Broadband Limited
- AS212329 Netcraft Ltd
- AS212565 Specsavers Optical Group Limited
- AS394265 Box.com
- AS394731 Canadian Natural Resources Limited
- AS395959 Xerox Corporation
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
