Autonomous system
AS18268 JANIS Naganoken Kyodou Densan Co.Ltd.
Unclassified APNIC
Summary
JANIS
isp regional residential cable
JANIS is operated by Naganoken Kyodou Densan Co.Ltd.
What it's used for
- The address space carries residential and small business internet access, evidenced by the reverse DNS record
janis220254191254.janis.or.jpand the netnameJANIS-CIDR-BLK-JP. - The AS announces 67,072 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 18 observed neighbours; this ratio of address volume to peering partners indicates a regional access provider rather than a transit carrier.
Notable
- All three IPv4 prefixes are registered to the Japan Network Information Center (JPNIC) under the netname
JANIS-CIDR-BLK-JP, which aligns with the AS holder's identity as a Japanese regional ISP. - The inventory consists of one large /16 block (220.254.0.0/16) and two smaller blocks (202.233.80.0/22 and 103.142.6.0/23), reflecting a consolidated regional footprint.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.33 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.46 |
Transit providers
7 upstream, 1 downstream and 13 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 3 prefixes · 67.07K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 4 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS18268- Registry name
- JANIS
- Registered
- 2002-07-01
- Last changed
- 2002-10-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 4 authorising AS18268
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 12 naming AS18268
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: 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