Autonomous System
AS37100 · SEACOM Limited
Overview
AS37100 is announced on the Internet: RIPE RIS route collectors currently see 10 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 1,072,896 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 126 upstream neighbours (transit providers or peers) and 1,775 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Level 3 Parent, LLC (AS3356), and NTT America, Inc. (AS2914). AS37100 was assigned by AFRINIC, and its registration country is Mauritius.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:48 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 105.16.0.1, the first address of 105.16.0.0/12. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.
Announced prefixes
IPv4 prefixes (10 prefixes)
| Prefix | Addresses |
|---|---|
| 41.87.96.0/19 | 8,192 |
| 41.206.96.0/19 | 8,192 |
| 41.207.232.0/22 | 1,024 |
| 41.217.212.0/22 | 1,024 |
| 102.221.24.0/22 | 1,024 |
| 105.16.0.0/12 | 1,048,576 |
| 154.72.240.0/20 | 4,096 |
| 196.6.170.0/24 | 256 |
| 196.6.171.0/24 | 256 |
| 196.6.172.0/24 | 256 |
IPv6 prefixes (3 prefixes)
| Prefix |
|---|
| 2c0f:f8e0::/32 |
| 2c0f:feb0::/32 |
| 2c0f:feb1::/32 |
Neighbours
Upstreams (transit or peers) (126)
| AS | Network | Visibility |
|---|---|---|
| AS1299 | Arelion Sweden AB | 11,013 |
| AS3356 | Level 3 Parent, LLC | 7,659 |
| AS2914 | NTT America, Inc. | 7,394 |
| AS327782 | Metro Fibre Networx (Pty) Ltd | 7,055 |
| AS174 | Cogent Communications, LLC | 5,745 |
| AS3257 | GTT Communications Inc. | 5,722 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 4,884 |
| AS6939 | Hurricane Electric LLC | 3,910 |
| AS9002 | RETN Limited | 3,282 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | 3,053 |
| AS13030 | Init7 (Switzerland) Ltd. | 1,735 |
| AS34549 | meerfarbig GmbH & Co. KG | 1,620 |
| AS25091 | IP-Max SA | 1,378 |
| AS39351 | 31173 Services AB | 1,057 |
| AS20485 | Joint Stock Company TransTeleCom | 1,013 |
| AS34177 | Celeste SAS | 955 |
| AS5405 | Inter.link GmbH | 941 |
| AS2497 | - | 940 |
| AS6461 | Zayo Bandwidth | 938 |
| AS8298 | IPng Networks GmbH | 926 |
| AS35625 | Eurofiber France SAS | 861 |
| AS24961 | WIIT AG | 860 |
| AS49434 | FBW NETWORKS SAS | 846 |
| AS34019 | Hivane Association | 841 |
| AS41327 | Fiber Telecom S.p.A. | 832 |
| AS33891 | Core-Backbone GmbH | 828 |
| AS29075 | IELO-LIAZO SERVICES SAS | 805 |
| AS14840 | BR.Digital Telecom | 800 |
| AS8218 | Zayo Infrastructure France SA | 767 |
| AS327708 | Airtel Rwanda Ltd | 754 |
The 30 most visible of 126.
Downstreams (customers) (1,775)
| AS | Network | Visibility |
|---|---|---|
| AS327708 | Airtel Rwanda Ltd | 19,825 |
| AS3356 | Level 3 Parent, LLC | 9,159 |
| AS37179 | Africa Independent Network Exchange (Pty) LTD (AfricaINX) | 7,277 |
| AS2914 | NTT America, Inc. | 5,951 |
| AS1299 | Arelion Sweden AB | 4,599 |
| AS6461 | Zayo Bandwidth | 4,202 |
| AS36908 | Vodacom Tanzania Ltd | 3,008 |
| AS9002 | RETN Limited | 2,869 |
| AS9498 | BHARTI Airtel Ltd. | 2,855 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | 2,706 |
| AS33765 | - | 2,602 |
| AS327724 | - | 2,412 |
| AS3257 | GTT Communications Inc. | 2,407 |
| AS60171 | AFR-IX TELECOM S.A. | 2,306 |
| AS327782 | Metro Fibre Networx (Pty) Ltd | 2,244 |
| AS37349 | - | 2,130 |
| AS37619 | Broadband Systems Corporation | 2,050 |
| AS37358 | BitCo | 1,647 |
| AS33771 | Safaricom Limited | 1,632 |
| AS37314 | - | 1,488 |
| AS15808 | - | 1,485 |
| AS37305 | - | 1,424 |
| AS20940 | Akamai International B.V. | 1,326 |
| AS327901 | - | 1,316 |
| AS328616 | - | 1,233 |
| AS329446 | - | 1,225 |
| AS329415 | - | 1,190 |
| AS37239 | - | 1,119 |
| AS327687 | - | 1,113 |
| AS36868 | - | 1,077 |
The 30 most visible of 1,775.
341 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.
Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.
How to read this page
An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.
A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.
Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.
The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.