Autonomous System
AS38639 NTT DOCOMO BUSINESS, Inc.
ISPActiveJapanJPNIC
AS38639 (HANABI) is an ISP network operated by NTT DOCOMO BUSINESS, Inc. in Japan, registered with JPNIC. It has 5 IPv4 prefixes with 13,568 addresses and 2 IPv6 prefixes, which makes it the 8,638th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses13,568in 5 prefixes
IPv6 prefixes2≈ 7.9 × 10²⁸ addresses
Size rank#8,638of 82,200 active ASNs
Details
OrganizationNTT DOCOMO BUSINESS, Inc.
AS nameHANABI
Websitentt.com
Country Japan (JP)
Network typeISP
RegistryJPNIC
Abuse contact—
Registered—
Last updated2025-07-11
IPv4 prefixes
5 prefixes · 13,568 addresses| Network | Addresses | First – last address |
|---|---|---|
| 163.138.224.0/19 | 8,192 | 163.138.224.0 – 163.138.255.255 |
| 115.69.224.0/21 | 2,048 | 115.69.224.0 – 115.69.231.255 |
| 220.150.192.0/21 | 2,048 | 220.150.192.0 – 220.150.199.255 |
| 103.2.128.0/22 | 1,024 | 103.2.128.0 – 103.2.131.255 |
| 220.150.196.0/24 | 256 | 220.150.196.0 – 220.150.196.255 |
163.138.224.0/19 115.69.224.0/21 220.150.192.0/21 103.2.128.0/22 220.150.196.0/24
IPv6 prefixes
2 prefixes- 2402:c800::/32
- 2402:c800:cafe::/48
2402:c800::/32 2402:c800:cafe::/48
Query AS38639 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=AS38639&key=YOUR_API_KEY"Any address in its prefixes resolves to AS38639, with or without a key:
curl "https://api.ipapi.is/?q=163.138.224.1"Other networks of NTT DOCOMO BUSINESS, Inc.
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