Autonomous System
AS2518 · BIGLOBE Inc.
Overview
AS2518 is announced on the Internet: RIPE RIS route collectors currently see 33 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,670,016 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 34 upstream neighbours (transit providers or peers) and 204 downstream neighbours (customers or networks it carries). Its most visible upstreams are KDDI CORPORATION (AS2516), Arelion Sweden AB (AS1299), and Cogent Communications, LLC (AS174). AS2518 was assigned by ARIN, and its registration country is Japan.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:56 AM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 125.192.0.1, the first address of 125.192.0.0/13. 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 (33 prefixes)
| Prefix | Addresses |
|---|---|
| 27.127.0.0/17 | 32,768 |
| 49.129.0.0/16 | 65,536 |
| 60.236.0.0/14 | 262,144 |
| 61.193.0.0/17 | 32,768 |
| 61.203.0.0/17 | 32,768 |
| 110.233.0.0/16 | 65,536 |
| 111.168.0.0/15 | 131,072 |
| 118.108.0.0/14 | 262,144 |
| 119.238.0.0/15 | 131,072 |
| 119.240.0.0/14 | 262,144 |
| 119.244.0.0/16 | 65,536 |
| 122.130.0.0/15 | 131,072 |
| 122.132.0.0/14 | 262,144 |
| 125.192.0.0/13 | 524,288 |
| 133.200.0.0/14 | 262,144 |
| 133.204.0.0/16 | 65,536 |
| 133.205.0.0/16 | 65,536 |
| 133.206.0.0/15 | 131,072 |
| 133.208.0.0/15 | 131,072 |
| 202.225.0.0/16 | 65,536 |
| 202.247.0.0/17 | 32,768 |
| 202.247.78.0/24 | 256 |
| 203.136.0.0/16 | 65,536 |
| 210.147.0.0/16 | 65,536 |
| 210.151.128.0/17 | 32,768 |
| 211.13.0.0/17 | 32,768 |
| 211.135.128.0/17 | 32,768 |
| 218.42.0.0/17 | 32,768 |
| 218.227.0.0/16 | 65,536 |
| 219.107.0.0/16 | 65,536 |
| 220.102.0.0/16 | 65,536 |
| 220.144.0.0/16 | 65,536 |
| 221.170.0.0/15 | 131,072 |
IPv6 prefixes (2 prefixes)
| Prefix |
|---|
| 2001:260::/32 |
| 2404:7a80::/29 |
Neighbours
Upstreams (transit or peers) (34)
| AS | Network | Visibility |
|---|---|---|
| AS2516 | KDDI CORPORATION | 5,305 |
| AS1299 | Arelion Sweden AB | 3,516 |
| AS174 | Cogent Communications, LLC | 2,310 |
| AS2914 | NTT America, Inc. | 1,414 |
| AS9002 | RETN Limited | 356 |
| AS33891 | Core-Backbone GmbH | 312 |
| AS5405 | Inter.link GmbH | 252 |
| AS6939 | Hurricane Electric LLC | 245 |
| AS39351 | 31173 Services AB | 230 |
| AS20485 | Joint Stock Company TransTeleCom | 175 |
| AS8455 | atom86 BV | 157 |
| AS47147 | Anexia Cloud Solutions GmbH | 125 |
| AS4635 | Hong Kong Internet Exchange--Route Server 1 | 114 |
| AS20562 | - | 72 |
| AS6204 | INTERKVM HOST SRL | 55 |
| AS8359 | MTS PJSC | 47 |
| AS8220 | COLT Technology Services Group Limited | 39 |
| AS4657 | StarHub Ltd | 31 |
| AS6663 | Euroweb Romania S.R.L. | 26 |
| AS58453 | China Mobile International Limited | 25 |
| AS15412 | Flag Telecom UK Limited | 20 |
| AS12389 | PJSC Rostelecom | 19 |
| AS60171 | AFR-IX TELECOM S.A. | 15 |
| AS2497 | Internet Initiative Japan Inc. | 13 |
| AS17676 | SoftBank Corp. | 6 |
| AS4713 | NTT DOCOMO BUSINESS,Inc. | 5 |
| AS8966 | EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC | 4 |
| AS7506 | - | 3 |
| AS9009 | M247 Europe SRL | 1 |
| AS20326 | TeraSwitch Networks Inc. | 1 |
The 30 most visible of 34.
Downstreams (customers) (204)
| AS | Network | Visibility |
|---|---|---|
| AS2516 | KDDI CORPORATION | 40,692 |
| AS2914 | NTT America, Inc. | 34,797 |
| AS1299 | Arelion Sweden AB | 19,928 |
| AS59105 | Home NOC Operators Group | 4,441 |
| AS9002 | RETN Limited | 2,475 |
| AS33891 | Core-Backbone GmbH | 1,288 |
| AS8220 | COLT Technology Services Group Limited | 1,196 |
| AS4637 | Telstra Global | 1,125 |
| AS2515 | Japan Network Information Center | 903 |
| AS5405 | Inter.link GmbH | 845 |
| AS18070 | - | 822 |
| AS4826 | Vocus Connect International Backbone | 671 |
| AS24257 | - | 586 |
| AS8359 | MTS PJSC | 527 |
| AS3819 | - | 502 |
| AS7524 | - | 482 |
| AS45674 | - | 433 |
| AS215724 | Edgevana, Inc. | 432 |
| AS17961 | - | 429 |
| AS173 | - | 419 |
| AS38651 | - | 406 |
| AS18068 | - | 402 |
| AS7713 | PT Telekomunikasi Indonesia | 398 |
| AS7679 | QTnet,Inc. | 391 |
| AS12389 | PJSC Rostelecom | 377 |
| AS9354 | Community Network Center Inc. | 357 |
| AS9351 | - | 330 |
| AS4711 | - | 326 |
| AS7511 | - | 302 |
| AS6204 | INTERKVM HOST SRL | 299 |
The 30 most visible of 204.
10 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.