Autonomous system
AS63802 MIKAKA-EAST Nippon Telegraph and Telephone East Corporation
Unclassified APNIC
Summary
NTT East
telecom residential business japan
MIKAKA-EAST is operated by Nippon Telegraph and Telephone East Corporation.
What it's used for
- The address space is registered under the netname
JPNIC-NET-JP-ERXwith the Japan Network Information Center, indicating a standard allocation for NTT East's network infrastructure. - The AS announces 131072 IPv4 addresses across 10 prefixes, with 11 observed routing neighbours; this ratio of address space to peering partners is consistent with a large access or regional network rather than a pure transit provider.
- As a major Japanese telecommunications carrier, this AS carries subscriber traffic for residential and business customers in the Kanto region, including broadband, mobile backhaul, and enterprise services.
Notable
- All registrant data for the announced prefixes lists the Japan Network Information Center as the registrant, which aligns with the announcer's identity as a major Japanese ISP.
- The address inventory consists of a single /16 block (133.132.0.0/16) and a series of smaller blocks within 133.131.0.0/17, reflecting a finely subdivided corporate estate typical of a large carrier managing distinct service segments.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
8 upstream, 0 downstream and 8 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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 131K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 10 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS63802- Registry name
- MIKAKA-EAST
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2014-08-25
- Last changed
- 2023-05-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 17 with no ROA
- ROAs
- 0 authorising AS63802
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 17 announcements
- Route objects
- 0 naming AS63802
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. 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