Autonomous system
AS2516 KDDI KDDI CORPORATION
Mobile DROP-listed space ARIN
Summary
KDDI
isp mobile eyeball
KDDI (KDDI CORPORATION) — one of Japan's largest telecoms, operating the au mobile brand plus fixed broadband and enterprise services.
What it's used for
- Mobile (au) and fixed internet access for millions of Japanese subscribers, plus international and enterprise connectivity.
Notable
- A major "eyeball" network — most IPs are end users in Japan.
- One of the big three Japanese carriers alongside NTT and SoftBank.
Interesting
- KDDI was formed from the merger of several Japanese carriers (DDI, KDD, and IDO) in 2000, combining domestic mobile with international telephony heritage.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 10 exchanges in 4 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.227.85 |
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.91.162 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.94 |
| New York International Internet Exchange | New York, United States | 198.32.160.25 |
| Equinix Internet Exchange San Jose (Bay Area) | San Jose, United States | 206.223.116.43 |
| JPIX Osaka | Osaka, Japan | 103.246.232.94 |
| Equinix Internet Exchange Los Angeles | Los Angeles, United States | 206.223.123.43 |
| Equinix Internet Exchange Palo Alto | Palo Alto, United States | 198.32.176.65 |
Transit providers
23 upstream, 152 downstream and 276 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 532 prefixes · 18.07M addresses IPv6 23 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 555 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS2516- Registry name
- KDDI
- Registered
- 2002-04-05
- Last changed
- 2010-06-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 81% valid · 463 valid, 105 with no ROA 1 RPKI-invalid
- ROAs
- 468 authorising AS2516
- ASPA
- no ASPA record
- IRR
- 99.3% registered · 565 of 569 announcements
- Route objects
- 466 naming AS2516
Reputation
Classification and threat
Mobile Cellular carrier. Addresses are shared by many handsets via CGNAT.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
6 DROP matches Announced space overlapping the DROP prefix list.
| Announced | DROP entry | Record |
|---|---|---|
| 36.255.236.0/22 | 36.255.236.0/22 | SBL395332 |
| 45.116.224.0/22 | 45.116.224.0/22 | SBL261016 |
| 103.13.140.0/22 | 103.13.140.0/22 | SBL175620 |
| 103.228.60.0/22 | 103.228.60.0/22 | SBL261012 |
| 103.232.200.0/22 | 103.232.200.0/22 | SBL230279 |
| 103.240.252.0/22 | 103.240.252.0/22 | SBL213844 |
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere