Upstream networks
AS21859 ZEN-ECN
Hosting DROP-listed space ARIN Content
Transit
Upstream networks
Networks observed carrying traffic for AS21859: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS4229 | Zenlayer Inc | Hosting | IPv4 IPv6 | 38,579 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 7,821 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 7,630 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 5,593 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 3,657 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 3,577 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 IPv6 | 2,293 |
| AS38082 | True International Gateway Co., Ltd. | Unclassified | IPv4 IPv6 | 2,114 |
| AS9498 | BHARTI Airtel Ltd. | Mobile | IPv4 IPv6 | 2,069 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 IPv6 | 1,817 |
| AS20764 | CJSC RASCOM | Unclassified | IPv4 IPv6 | 1,759 |
| AS3462 | Data Communication Business Group | Residential | IPv4 IPv6 | 1,373 |
| AS8529 | Zain Omantel International FZ-LLC | Unclassified | IPv4 IPv6 | 1,322 |
| AS9299 | Philippine Long Distance Telephone Company | Unclassified | IPv4 IPv6 | 1,303 |
| AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | Mobile | IPv4 IPv6 | 1,106 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 1,070 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | Transit | IPv4 IPv6 | 915 |
| AS18403 | FPT Telecom Company | Residential | IPv4 IPv6 | 886 |
| AS7195 | EDGEUNO S.A.S | Unclassified | IPv4 IPv6 | 855 |
| AS9457 | DREAMLINE CO. | Hosting | IPv4 IPv6 | 844 |
| AS12389 | PJSC Rostelecom | Residential | IPv4 IPv6 | 789 |
| AS8966 | EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC | Mobile | IPv4 IPv6 | 782 |
| AS39386 | Saudi Telecom Company JSC | Unclassified | IPv4 IPv6 | 737 |
| AS9260 | Multinet Pakistan Pvt. Ltd. | Unclassified | IPv4 IPv6 | 707 |
| AS63956 | 5G NETWORK OPERATIONS PTY LTD | Unclassified | IPv4 IPv6 | 660 |
| AS4775 | Globe Telecoms | Unclassified | IPv4 IPv6 | 609 |
| AS6774 | Belgacom International Carrier Services SA | Unclassified | IPv4 IPv6 | 526 |
| AS40850 | UPIX NETWORKS INTERNATIONAL LLC | Unclassified | IPv4 IPv6 | 466 |
| AS200612 | Gulf Bridge International Inc. | Unclassified | IPv4 | 465 |
| AS38193 | Transworld Associates (Pvt.) Ltd. | Unclassified | IPv4 IPv6 | 456 |
| AS8452 | IDDQD-AS | Residential | IPv4 IPv6 | 444 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 IPv6 | 438 |
| AS30844 | Liquid Telecommunications Ltd | Unclassified | IPv4 IPv6 | 399 |
| AS12956 | TELEFONICA GLOBAL SOLUTIONS SL | Transit | IPv4 IPv6 | 390 |
| AS17557 | Pakistan Telecommunication Company Limited | Unclassified | IPv4 IPv6 | 385 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 IPv6 | 360 |
| AS37271 | Workonline Communications(Pty) Ltd | Unclassified | IPv4 IPv6 | 358 |
| AS29752 | Zenlayer Inc | Hosting | IPv4 IPv6 | 345 |
| AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | Unclassified | IPv4 IPv6 | 343 |
| AS1221 | Telstra Limited | Mobile | IPv4 IPv6 | 340 |
| AS24203 | PT XL Axiata | Mobile | IPv4 IPv6 | 340 |
| AS55720 | Gigabit Hosting Sdn Bhd | Hosting | IPv4 | 336 |
| AS17494 | Telecom Operator & Internet Service Provider as well | Unclassified | IPv4 IPv6 | 329 |
| AS20485 | Joint Stock Company TransTeleCom | Unclassified | IPv4 | 328 |
| AS48237 | Etihad Etisalat, a joint stock company | Unclassified | IPv4 IPv6 | 327 |
| AS28458 | IENTC S DE RL DE CV | Unclassified | IPv4 IPv6 | 322 |
| AS4755 | TATA Communications formerly VSNL is Leading ISP | Hosting | IPv4 IPv6 | 308 |
| AS136255 | Telecom International Myanmar Co., Ltd | Unclassified | IPv4 | 301 |
| AS7552 | Viettel Group | Mobile | IPv4 IPv6 | 291 |
| AS6205 | HizliNet Teknoloji A.S. | Hosting | IPv4 IPv6 | 270 |
Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.
Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.