Autonomous System
AS2506 NTT BUSINESS SOLUTIONS CORPORATION
ISPActiveJapanAPNIC
AS2506 (SuperCSI) is an ISP network operated by NTT BUSINESS SOLUTIONS CORPORATION in Japan, registered with APNIC. It has 15 IPv4 prefixes with 217,088 addresses and 1 IPv6 prefix, which makes it the 1,215th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses217,088in 15 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,215of 82,200 active ASNs
Details
OrganizationNTT BUSINESS SOLUTIONS CORPORATION
AS nameSuperCSI
Websitenttbizsol.jp
Country Japan (JP)
Network typeISP
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-08-15
IPv4 prefixes
15 prefixes · 217,088 addresses| Network | Addresses | First – last address |
|---|---|---|
| 133.41.0.0/16 | 65,536 | 133.41.0.0 – 133.41.255.255 |
| 150.19.0.0/16 | 65,536 | 150.19.0.0 – 150.19.255.255 |
| 165.242.0.0/16 | 65,536 | 165.242.0.0 – 165.242.255.255 |
| 202.249.192.0/19 | 8,192 | 202.249.192.0 – 202.249.223.255 |
| 202.249.224.0/19 | 8,192 | 202.249.224.0 – 202.249.255.255 |
| 202.15.112.0/22 | 1,024 | 202.15.112.0 – 202.15.115.255 |
| 202.249.200.0/22 | 1,024 | 202.249.200.0 – 202.249.203.255 |
| 202.245.144.0/24 | 256 | 202.245.144.0 – 202.245.144.255 |
| 202.249.204.0/24 | 256 | 202.249.204.0 – 202.249.204.255 |
| 202.249.206.0/24 | 256 | 202.249.206.0 – 202.249.206.255 |
| 202.249.207.0/24 | 256 | 202.249.207.0 – 202.249.207.255 |
| 202.249.208.0/24 | 256 | 202.249.208.0 – 202.249.208.255 |
| 202.249.214.0/24 | 256 | 202.249.214.0 – 202.249.214.255 |
| 202.249.236.0/24 | 256 | 202.249.236.0 – 202.249.236.255 |
| 202.249.237.0/24 | 256 | 202.249.237.0 – 202.249.237.255 |
133.41.0.0/16 150.19.0.0/16 165.242.0.0/16 202.249.192.0/19 202.249.224.0/19 202.15.112.0/22 202.249.200.0/22 202.245.144.0/24 202.249.204.0/24 202.249.206.0/24 202.249.207.0/24 202.249.208.0/24 202.249.214.0/24 202.249.236.0/24 202.249.237.0/24
IPv6 prefixes
1 prefix- 2001:44a0::/32
2001:44a0::/32
Query AS2506 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=AS2506&key=YOUR_API_KEY"Any address in its prefixes resolves to AS2506, with or without a key:
curl "https://api.ipapi.is/?q=133.41.0.1"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