AS38639 — HANABI NTT DOCOMO BUSINESS, Inc.

AS38639 announces 4 IPv4 prefixes covering 13,312 addresses and 5 IPv6 prefixes.

About this network

HANABI is operated by NTT DOCOMO BUSINESS, Inc.

What it's used for

• The address space carries corporate and business telecommunications infrastructure, with netnames including NTTECL-JP, NTT-C, and IAC-CIDR-BLK-JP.
• The AS announces 13,312 IPv4 addresses across 7 prefixes and 30 IPv6 prefixes, maintaining 11 observed neighbours.
• Traffic from this AS consists of business data communication, long-distance calls, and international connectivity services provided to corporate clients.

Notable

• Registrants include Nippon Telegraph and Telephone Corporation and the Japan Network Information Center, aligning with the NTT corporate family.
• NTT DOCOMO BUSINESS, Inc. was previously known as NTT Communications Corporation.
• The inventory includes a large /19 block and several smaller /22 to /24 blocks, alongside a subdivided IPv6 estate under 2402:c800::/33.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 103.2.128.0/22
• 115.69.224.0/21
• 163.138.224.0/19
• 220.150.192.0/21
• 2402:c800::/32
• 2402:c800:fff2::/48
• 2402:c800:fff4::/47
• 2402:c800:fff7::/48
• 2402:c800:fff8::/45

Upstream networks

• AS2914 NTT America, Inc.
• AS4713 NTT DOCOMO BUSINESS,Inc.
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom

Adjacent networks

• AS2914 NTT America, Inc.
• AS4713 NTT DOCOMO BUSINESS,Inc.
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS20485 Joint Stock Company TransTeleCom

Routing security

• RPKI: 7 valid, 0 invalid and 0 not-found announcements; 11 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 10 route objects.
• Listed in as-sets: AS-HANABI, AS-HIGE, AS-OCN, AS-OCN, AS-OCN-V6, AS-OCN-V6, AS2914:AS-64600-V6.