Autonomous System
AS18126 Chubu Telecommunications Co.,Inc.
ISPActiveJapanAPNIC
AS18126 (CTCX) is an ISP network operated by Chubu Telecommunications Co.,Inc. in Japan, registered with APNIC. It has 63 IPv4 prefixes with 1,505,536 addresses and 2 IPv6 prefixes, which makes it the 338th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses1,505,536in 63 prefixes
IPv6 prefixes2≈ 1.6 × 10²⁹ addresses
Size rank#338of 82,200 active ASNs
Details
OrganizationChubu Telecommunications Co.,Inc.
AS nameCTCX
Websitectc.co.jp
Country Japan (JP)
Network typeISP
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-10-03
IPv4 prefixes
63 prefixes · 1,505,536 addresses| Network | Addresses | First – last address |
|---|---|---|
| 14.132.0.0/16 | 65,536 | 14.132.0.0 – 14.132.255.255 |
| 14.133.0.0/16 | 65,536 | 14.133.0.0 – 14.133.255.255 |
| 115.36.0.0/16 | 65,536 | 115.36.0.0 – 115.36.255.255 |
| 115.37.0.0/16 | 65,536 | 115.37.0.0 – 115.37.255.255 |
| 115.38.0.0/16 | 65,536 | 115.38.0.0 – 115.38.255.255 |
| 115.39.0.0/16 | 65,536 | 115.39.0.0 – 115.39.255.255 |
| 118.104.0.0/16 | 65,536 | 118.104.0.0 – 118.104.255.255 |
| 118.105.0.0/16 | 65,536 | 118.105.0.0 – 118.105.255.255 |
| 118.106.0.0/16 | 65,536 | 118.106.0.0 – 118.106.255.255 |
| 123.48.0.0/16 | 65,536 | 123.48.0.0 – 123.48.255.255 |
| 124.18.0.0/16 | 65,536 | 124.18.0.0 – 124.18.255.255 |
| 163.46.0.0/16 | 65,536 | 163.46.0.0 – 163.46.255.255 |
| 180.196.0.0/16 | 65,536 | 180.196.0.0 – 180.196.255.255 |
| 180.197.0.0/16 | 65,536 | 180.197.0.0 – 180.197.255.255 |
| 180.198.0.0/16 | 65,536 | 180.198.0.0 – 180.198.255.255 |
| 180.199.0.0/16 | 65,536 | 180.199.0.0 – 180.199.255.255 |
| 219.8.0.0/16 | 65,536 | 219.8.0.0 – 219.8.255.255 |
| 59.130.0.0/17 | 32,768 | 59.130.0.0 – 59.130.127.255 |
| 59.130.128.0/17 | 32,768 | 59.130.128.0 – 59.130.255.255 |
| 113.155.0.0/17 | 32,768 | 113.155.0.0 – 113.155.127.255 |
| 113.155.128.0/17 | 32,768 | 113.155.128.0 – 113.155.255.255 |
| 222.9.0.0/17 | 32,768 | 222.9.0.0 – 222.9.127.255 |
| 222.9.128.0/17 | 32,768 | 222.9.128.0 – 222.9.255.255 |
| 223.29.0.0/17 | 32,768 | 223.29.0.0 – 223.29.127.255 |
| 123.1.0.0/18 | 16,384 | 123.1.0.0 – 123.1.63.255 |
14.132.0.0/16 14.133.0.0/16 115.36.0.0/16 115.37.0.0/16 115.38.0.0/16 115.39.0.0/16 118.104.0.0/16 118.105.0.0/16 118.106.0.0/16 123.48.0.0/16 124.18.0.0/16 163.46.0.0/16 180.196.0.0/16 180.197.0.0/16 180.198.0.0/16 180.199.0.0/16 219.8.0.0/16 59.130.0.0/17 59.130.128.0/17 113.155.0.0/17 113.155.128.0/17 222.9.0.0/17 222.9.128.0/17 223.29.0.0/17 123.1.0.0/18
The 25 largest of 63. The API and the database have all of them.
IPv6 prefixes
2 prefixes- 2001:f58::/32
- 2402:6b00::/32
2001:f58::/32 2402:6b00::/32
Query AS18126 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS18126&key=YOUR_API_KEY"
Any address in its prefixes resolves to AS18126, with or without a key:
curl "https://api.ipapi.is/?q=14.132.0.1"
Largest networks in Japan
AS17676 SoftBank Mobile Corp.49,061,888 IPv4 addressesAS4713 NTT DOCOMO BUSINESS,Inc.28,624,896 IPv4 addressesAS2516 KDDI CORPORATION18,152,448 IPv4 addressesAS9824 JCOM Co., Ltd.10,315,776 IPv4 addressesAS2907 Authoritative information regarding AS Number8,960,512 IPv4 addressesAS17506 UCOM Corp.5,508,096 IPv4 addresses