Autonomous system
AS23788 HICT JCOM Co., Ltd.
Unclassified APNIC
Summary
J:COM
cable residential japan broadband
HICT is the AS handle for J:COM Co., Ltd., a major Japanese cable television and broadband provider.
What it's used for
- The address space carries residential cable broadband traffic, evidenced by reverse DNS names such as
hinocatv.ne.jpand netnames likeJCOM-NET. - With 24,576 IPv4 addresses announced across 7 prefixes and only 1 observed neighbour, the ratio indicates a pure access or eyeball network rather than a transit provider.
Notable
- Registrants for all prefixes are listed as Japan Network Information Center (JPNIC), which is consistent with the standard allocation process for Japanese ISPs and aligns with the announcer's identity.
- The inventory consists of seven distinct IPv4 blocks, including a large /19 and several /20s and /22s, with no IPv6 prefixes currently announced in the inventory.
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
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9824 | JCOM Co., Ltd. | 1,252 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 24.58K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 7 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS23788- Registry name
- HICT
- Registered
- 2003-06-16
- Last changed
- 2022-02-18
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 21 valid, 0 with no ROA
- ROAs
- 7 authorising AS23788
- ASPA
- no ASPA record
- IRR
- 100% registered · 21 of 21 announcements
- Route objects
- 21 naming AS23788
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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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