Autonomous system

AS3257

GTT-BACKBONE GTT Communications Inc.

Looked up (1 day ago)

NetworkNameCountryRelationship Paths seenIPv4 viewsIPv6 views
AS1299 TWELVE99 Arelion Sweden AB SE Peer 143,809 1,266,444 169,187
AS3356 LEVEL3 - Level 3 Parent, LLC US Peer 120,374 1,021,959 130,181
AS12586 ASGHOSTNET GHOSTnet GmbH DE Customer 112,671 862,676 174,614
AS3356 LEVEL3 - Level 3 Parent, LLC US Peer 95,650 889,992 91,887
AS174 COGENT-174 - Cogent Communications, LLC US Peer 83,732 697,604 124,846
AS9002 RETN-AS RETN Limited GB Customer 82,188 1,112,875 179,154
AS2914 NTT-DATA-2914 - NTT America, Inc. US Peer 70,176 888,449 93,982
AS61049 EXASCALE Exascale Ltd GB Customer 67,576 676,851 1,231
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. IT Peer 66,778 661,711 73,850
AS286 KPN GTT Communications Inc. US Peer 62,891 465,466 0
AS28917 Fiord-AS Fiord Networks, UAB LT Customer 56,540 478,318 213,186
AS6894 KDDI-EUROPE KDDI Europe Ltd GB Customer 55,874 366,517 52,385
AS174 COGENT-174 - Cogent Communications, LLC US Peer 54,597 428,763 113,548
AS3320 DTAG Deutsche Telekom AG DE Peer 52,192 569,797 68,470
AS1299 TWELVE99 Arelion Sweden AB SE Peer 49,738 401,105 118,313
AS3491 PCCWG-APAC-HK - PCCW Global (HK) Ltd. HK Peer 48,528 456,097 68,361
AS21700 NEPTUNE-NETWORKS - Neptune Networks, LLC US Customer 46,687 377,635 30,142
AS1103 SURFNET-NL SURF B.V. NL Customer 45,587 423,136 34,363
AS51088 A2B A2B IP B.V. NL Customer 44,441 361,641 196
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC US Peer 43,953 351,934 81,186
AS8426 CLARANET-AS Claranet Limited GB Customer 43,686 342,752 63,249
AS29680 VOZTELECOM Gamma Operadora de Comunicaciones S.A. ES Customer 38,935 264,494 71,084
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC US Peer 37,477 381,647 70,058
AS6939 HURRICANE - Hurricane Electric LLC US Unknown 35,031 0 144,886
AS12779 ITGATE IT.Gate S.p.A. IT Customer 34,492 913,379 123,680
AS34984 TELLCOM-AS Superonline Iletisim Hizmetleri A.S. TR Customer 34,484 328,674 27,610
AS44901 belcloud Belcloud LTD BG Customer 33,512 403,435 27,143
AS852 ASN852 - TELUS Communications Inc. CA Customer 32,250 257,461 45,376
AS50300 CUSTDC CustodianDC Limited GB Customer 32,116 264,089 40,691
AS49666 TIC-GW-AS Telecommunication Infrastructure Company IR Customer 30,306 87,956 79,061
AS4637 ASN-TELSTRA-GLOBAL - Telstra Global HK Peer 30,235 218,578 48,260
AS20473 AS-VULTR - The Constant Company, LLC US Customer 28,649 94,866 71,403
AS12956 TELXIUS TELEFONICA GLOBAL SOLUTIONS SL ES Peer 28,493 233,272 27,266
AS37468 Angola Cables - Angola Cables AO Customer 26,626 73,456 17,534
AS15830 Equinix Equinix (EMEA) Acquisition Enterprises B.V. NL Customer 26,473 84,987 7,499
AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. US Customer 25,794 489,318 47,818
AS20764 RASCOM-AS CJSC RASCOM RU Customer 25,743 152,866 74,839
AS7474 OPTUSCOM-AS01-AU - SingTel Optus Pty Ltd AU Customer 25,504 154,806 18,239
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. IT Peer 25,318 219,662 45,059
AS55410 VIL-AS-AP - Vodafone Idea Ltd IN Customer 25,059 287,171 7,806
AS6830 LibertyGlobal Liberty Global Europe Holding B.V. NL Peer 24,568 220,814 36,702
AS12389 ROSTELECOM-AS PJSC Rostelecom RU Customer 24,468 203,278 14,311
AS5405 INTERDOTLINK Inter.link GmbH DE Customer 22,348 145,640 11,151
AS24961 MYLOC-AS WIIT AG DE Customer 22,302 190,460 33,929
AS25091 IP-Max IP-Max SA CH Customer 22,061 205,149 29,982
AS34549 MEER-AS meerfarbig GmbH & Co. KG DE Customer 21,889 262,330 20,606
AS38195 SUPERLOOP-AS-AP - Superloop AU Customer 20,905 129,127 8,788
AS7195 AS7195 - EDGEUNO S.A.S CO Customer 20,772 66,646 11,406
AS6667 EUNET-FINLAND Elisa Oyj FI Customer 20,251 166,640 40,115
AS2497 IIJ - Internet Initiative Japan Inc. JP Peer 20,124 149,776 33,322
AS199524 GCORE G-Core Labs S.A. LU Customer 20,112 357,968 28,513
AS6461 ZAYO-6461 - Zayo Bandwidth US Peer 19,449 242,960 39,937
AS200612 GulfBridgeInternational Gulf Bridge International Inc. VG Customer 19,224 172,974 180
AS3491 PCCWG-APAC-HK - PCCW Global (HK) Ltd. HK Peer 18,493 167,009 16,203
AS6461 ZAYO-6461 - Zayo Bandwidth US Peer 18,253 72,616 8,596
AS12956 TELXIUS TELEFONICA GLOBAL SOLUTIONS SL ES Peer 18,029 175,417 36,870
AS9498 BBIL-AP - BHARTI Airtel Ltd. IN Customer 17,822 87,369 5,381
AS13786 SEABORN - Seabras 1 USA, LLC US Customer 17,777 21,493 34,818
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC US Peer 17,686 116,223 11,794
AS55720 GIGABIT-MY - Gigabit Hosting Sdn Bhd MY Customer 17,429 132,262 4
AS15924 BORUSANTELEKOM-AS Vodafone Net Iletisim Hizmetler AS TR Customer 17,112 96,854 2,811
AS32098 TRANSTELCO-INC - Transtelco Inc US Customer 15,591 115,184 76,100
AS35625 EUROFIBER-FRANCE Eurofiber France SAS FR Customer 15,336 129,718 20,200
AS13649 ASN-FLEXENTIAL - Flexential Colorado Corp. US Customer 15,209 96,314 4,943
AS35266 EXN-AS EX Networks Limited GB Customer 15,085 124,418 14,619
AS9002 RETN-AS RETN Limited GB Customer 14,551 114,255 4,665
AS2516 KDDI - KDDI CORPORATION JP Customer 14,498 122,778 1,590
AS5394 Unidata UNIDATA S.p.A. IT Customer 14,360 98,292 14,422
AS20115 CHARTER-20115 - Charter Communications LLC US Customer 14,232 83,723 5,734
AS50629 LWLCOM LWLcom GmbH DE Customer 13,916 80,367 14,964
AS20764 RASCOM-AS CJSC RASCOM RU Customer 13,780 56,772 23,071
AS23487 AS23487 - CONECEL EC Customer 13,489 53,602 44,505
AS4637 ASN-TELSTRA-GLOBAL - Telstra Global HK Peer 13,096 103,806 2,368
AS23520 LIBERTY-NETWORKS - Columbus Networks USA, Inc. US Customer 12,772 91,517 24,077
AS28917 Fiord-AS Fiord Networks, UAB LT Customer 12,345 55,925 5,040
AS6205 HizliNet-Teknoloji - HizliNet Teknoloji A.S. TR Customer 12,281 111,602 8,215
AS28792 PUBLIC-INTERNET Public Internet Ltd GB Customer 12,213 92,648 0
AS36236 NETACTUATE - NetActuate, Inc US Customer 12,059 108,685 14,206
AS40676 AS40676 - Psychz Networks US Customer 11,993 118,934 16,626
AS264409 AS264409 - Huge Solucoes Corporativas Ltda BR Customer 11,941 41,435 7,387
AS40994 Alwyzon Hohl IT e.U. AT Customer 11,761 86,744 12,035
AS6057 AS6057 - Administracion Nacional de Telecomunicaciones UY Customer 11,734 99,582 6,377
AS396998 PATH-NETWORK - Path Network, Inc. US Customer 11,569 45,454 11,138
AS9121 TTNet Turk Telekomunikasyon Anonim Sirketi TR Customer 11,308 77,479 17,872
AS7474 OPTUSCOM-AS01-AU - SingTel Optus Pty Ltd AU Customer 11,014 61,072 11,729
AS701 UUNET - Verizon Business US Peer 10,913 99,142 26,339
AS3303 SWISSCOM Swisscom (Schweiz) AG CH Peer 10,754 63,078 15,904
AS60068 CDN77 Datacamp Limited GB Customer 10,672 145,554 21,930
AS1764 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH AT Customer 10,623 89,806 10,366
AS8452 TE-AS - IDDQD-AS EG Customer 10,536 487,744 16,183
AS33891 CORE-BACKBONE Core-Backbone GmbH DE Customer 10,283 51,102 2,381
AS835 GOCODEIT-EDGE - GoCodeIT Inc CA Customer 10,077 80,071 171
AS4230 AS4230 - CLARO S.A. BR Customer 10,069 37,606 23,891
AS49915 MEGAPORT Megaport (UK) Limited GB Customer 9,997 46,584 5,922
AS30844 LIQUID-AS Liquid Telecommunications Ltd GB Customer 9,791 67,929 2,568
AS13786 SEABORN - Seabras 1 USA, LLC US Customer 9,764 56,318 16,844
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD AU Customer 9,671 53,235 19,716
AS6327 SHAW - Shaw Communications CA Customer 9,498 114,941 10,672
AS58453 CMI-INT-HK - China Mobile International Limited HK Customer 9,137 441,942 1,133
AS400282 UPX - UPX US LLC US Customer 9,067 46,370 3,894

Neighbors are networks seen next to AS3257 in AS paths collected by RIPE RIS. Provider, peer and customer relationships come from CAIDA’s AS relationship data (November 2026). A provider sells transit to this network, a customer buys transit from it, and peers exchange their own and their customers’ traffic. Unknown means CAIDA has no record of the pair yet. “Paths seen” counts the paths in which the two networks are adjacent.