AS5400
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Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.
BT British Telecommunications Limited · BT
The table preserves every relationship in the selected filter; graph limits and pagination never remove data.
| ASN | Organization | Relationship | ASN registration country | RIS observation start | Latest RIS data | IPv4 | IPv6 |
|---|---|---|---|---|---|---|---|
| AS2856Observed weight 17,426 | BT-UK-AS British Telecommunications Limited | Downstream / Upstream | United Kingdom | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 149,218 | 10,021 |
| AS1299Observed weight 6,045 | TWELVE99 Arelion Sweden AB | Upstream / Downstream | Sweden | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 40,675 | 2,962 |
| AS3356Observed weight 5,236 | LEVEL3 - Level 3 Parent, LLC | Upstream / Downstream | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 45,009 | 2,987 |
| AS6939Observed weight 2,659 | HURRICANE - Hurricane Electric LLC | Upstream | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 10,481 | 6,686 |
| AS174Observed weight 2,057 | COGENT-174 - Cogent Communications, LLC | Upstream / Downstream | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 13,450 | 640 |
| AS8968Observed weight 1,823 | BT-Italia RETELIT-X S.R.L. | Downstream / Uncertain relationship | Italy | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 6,734 | 199 |
| AS6762Observed weight 1,747 | SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. | Upstream / Downstream | Italy | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 12,880 | 1,114 |
| AS2110Observed weight 1,461 | AS-BTIRE Enet Communications LIMITED | Downstream / Uncertain relationship | Ireland | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 5,464 | 380 |
| AS3257Observed weight 1,330 | GTT-BACKBONE GTT Communications Inc. | Upstream / Downstream | Germany | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 10,855 | 644 |
| AS3491Observed weight 1,075 | PCCWG-APAC-HK - PCCW Global (HK) Ltd. | Upstream | Hong Kong SAR China | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 8,147 | 725 |
| AS6453Observed weight 879 | AS6453 - TATA COMMUNICATIONS (AMERICA) INC | Upstream | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 6,889 | 545 |
| AS33891Observed weight 628 | CORE-BACKBONE Core-Backbone GmbH | Upstream | Germany | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 5,070 | 102 |
| AS9002Observed weight 609 | RETN-AS RETN Limited | Upstream / Downstream | United Kingdom | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,728 | 767 |
| AS5511Observed weight 501 | Opentransit Orange S.A. | Upstream | France | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,847 | 290 |
| AS20485Observed weight 475 | TRANSTELECOM Joint Stock Company TransTeleCom | Upstream / Downstream | Russia | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,243 | 0 |
| AS199541Observed weight 461 | EUROCONTROL, the European Organisation for the Safety of Air Navigation | Downstream / Uncertain relationship | Belgium | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 11,234 | 0 |
| AS4637Observed weight 441 | ASN-TELSTRA-GLOBAL - Telstra Global | Upstream | Hong Kong SAR China | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,098 | 730 |
| AS29063Observed weight 413 | Atos-NL-AS Eviden Netherlands B.V. | Downstream / Uncertain relationship | Netherlands | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,309 | 76 |
| AS3320Observed weight 389 | DTAG Deutsche Telekom AG | Upstream | Germany | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,494 | 365 |
| AS13030Observed weight 386 | INIT7 Init7 (Switzerland) Ltd. | Upstream | Switzerland | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,036 | 260 |
| AS12956Observed weight 368 | TELXIUS TELEFONICA GLOBAL SOLUTIONS SL | Upstream / Downstream | Spain | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,271 | 247 |
| AS2497Observed weight 360 | IIJ | Upstream | Japan | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,304 | 376 |
| AS24961Observed weight 357 | MYLOC-AS WIIT AG | Upstream | Germany | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,275 | 205 |
| AS7246Observed weight 315 | BMS-AS - Bristol-Myers Squibb Company | Downstream / Uncertain relationship | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 819 | 268 |
| AS15499Observed weight 309 | GECITS-EU Computacenter Management GmbH trading as Computacenter AG & Co.oHG | Downstream / Uncertain relationship | Germany | 8/28/2019, 00:00:00 | 10/24/2026, 08:00:00 | 271 | 268 |
| AS8283Observed weight 298 | COLOCLUE-AS Netwerkvereniging Coloclue | Upstream | Netherlands | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,066 | 285 |
| AS35280Observed weight 295 | F5 F5 Networks SARL | Upstream / Downstream | France | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,198 | 158 |
| AS8218Observed weight 285 | NEO-ASN Zayo Infrastructure France SA | Upstream | France | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 6,188 | 575 |
| AS51046Observed weight 267 | Bringo Limited | Downstream / Uncertain relationship | Ireland | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 551 | 270 |
| AS40126Observed weight 266 | Molson Coors Beverage Company | Downstream / Uncertain relationship | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 820 | 0 |
| AS6881Observed weight 262 | NIXCZ NIX.CZ z.s.p.o. | Uncertain relationship | Czechia | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,407 | 101 |
| AS21489Observed weight 261 | The North Atlantic Treaty Organization | Downstream / Uncertain relationship | Belgium | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,908 | 0 |
| AS21000Observed weight 243 | Atos France SAS | Downstream / Uncertain relationship | France | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,399 | 0 |
| AS52320Observed weight 242 | AS52320 - GlobeNet Cabos Submarinos Colombia, S.A.S. | Uncertain relationship / Downstream | Colombia | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,327 | 114 |
| AS13205Observed weight 235 | British Telecommunications Limited | Downstream / Uncertain relationship | United Kingdom | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 3,548 | 0 |
| AS22683Observed weight 235 | Koninklijke Philips N.V. | Downstream / Uncertain relationship | Netherlands | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 819 | 0 |
| AS37468Observed weight 234 | Angola Cables - Angola Cables | Upstream / Downstream | Registration country pending sync | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,320 | 0 |
| AS12298Observed weight 233 | QIAGEN GmbH | Downstream / Uncertain relationship | Registration country pending sync | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 469 | 0 |
| AS19151Observed weight 233 | BBO-1 - BroadbandONE, LLC | Uncertain relationship / Downstream | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,630 | 0 |
| AS33873Observed weight 233 | ORG-BmG1-RIPE | Downstream / Uncertain relationship | Germany | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 2,435 | 18 |
| AS59724Observed weight 233 | Elsevier Limited | Downstream / Uncertain relationship | Registration country pending sync | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 546 | 0 |
| AS25049Observed weight 232 | Shell Information Technology International B.V. | Downstream / Uncertain relationship | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 1,092 | 0 |
| AS34311Observed weight 230 | LG CNS Europe B.V | Downstream / Uncertain relationship | Netherlands | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 580 | 0 |
| AS49182Observed weight 230 | British Telecommunications Limited | Downstream / Uncertain relationship | United Kingdom | 8/28/2019, 00:00:00 | 10/24/2026, 08:00:00 | 273 | 0 |
| AS212565Observed weight 230 | Specsavers Optical Group Limited | Downstream / Uncertain relationship | Guernsey | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 822 | 0 |
| AS27311Observed weight 229 | Biogen MA Inc | Downstream / Uncertain relationship | United States | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 273 | 0 |
| AS30864Observed weight 228 | Elavon Financial Services DAC | Downstream / Uncertain relationship | Ireland | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 273 | 0 |
| AS48647Observed weight 228 | Solvay SA | Downstream / Uncertain relationship | Belgium | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 273 | 0 |
| AS51466Observed weight 228 | Bridgestone Europe NV | Downstream / Uncertain relationship | Belgium | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 546 | 0 |
| AS202666Observed weight 228 | International Flavors & Fragrances I.F.F. (Nederland) B.V | Downstream / Uncertain relationship | Netherlands | 8/19/2019, 00:00:00 | 10/24/2026, 08:00:00 | 273 | 0 |