AS55904
KOGAKUIN University
Japan (JP)
ASN Information
| AS Number | AS55904 |
|---|---|
| AS Name | KOGAKUIN-AS |
| Organization | KOGAKUIN University |
| Also known as | Not available |
| Country | Japan (JP) |
| Registry | APNIC |
| ASN Type | Not available |
| Last Seen | |
| Announcement Count | 4 |
| IPv4 Prefix Count | 3 |
| IPv6 Prefix Count | 1 |
| RPKI Status | NotFound ×3Unknown (could not be determined) ×1 |
| IRR Records | View IRR route objects |
| Website | Not available |
AS Path to AS55904
- 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
- 3356LEVEL3 - Level 3 Parent, LLC
- 2497IIJ - Internet Initiative Japan Inc.
- 2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics
- 55904Origin
Most common path, seen 10× in route collector data, latest at a collector in Johannesburg (2026-10-25 13:38:53 UTC). Prepends collapsed.
Route Collectors (Visibility)
Approximate route collector locations, coloured by peer sessions carrying this AS's routes.
Announced Prefixes (4)
View All →| Prefix | Family | RPKI | Last Seen |
|---|---|---|---|
| 133.80.0.0/16 | IPv4 | NotFound | Not looked up yet |
| 133.80.0.0/17 | IPv4 | NotFound | Not looked up yet |
| 133.80.128.0/17 | IPv4 | NotFound | Not looked up yet |
| 2001:df0:456::/48 | IPv6 | Not checked | Not looked up yet |
Peers (2)
View All →| AS | Name | Relationship | Paths | Last Seen |
|---|---|---|---|---|
| AS2907 | SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | Upstream (inferred) | 526 | |
| AS2497 | IIJ - Internet Initiative Japan Inc. | Upstream (inferred) | 174 |
Neighbours seen next to AS55904 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.
Public Peering Exchange Points (0)
IX Updates →No Internet Exchange ports are registered for AS55904.
IX ports registered by AS55904 (self-reported by the network).
Interconnection Facilities (0)
No interconnection facilities are registered for AS55904.
Data centres where AS55904 says it can interconnect (self-reported).
IRR AS-SET and Peering Policy
| IRR AS-SET | Not available |
|---|---|
| Member of AS-SETs | See IRR page |
| Peering policy | Not available |
| Multiple locations | Not available |
| Ratio requirement | Not available |
| Contract | Not available |
| Traffic | Not available |
| Traffic ratio | Not available |
| Geographic scope | Not available |
| Max prefixes (IPv4 / IPv6) | Not available |
| Unicast / IPv6 / Multicast | Not available |
| Looking glass | Not available |
| Route server | Not available |
Contact Information (0)
No public contacts are registered for AS55904.
Only contacts the network has chosen to publish are shown.
Upstreams (2)
Downstreams (0)
No downstream ASNs found for AS55904 in current data sources.
Registry and network details
| Registered holder | KOGAKUIN-AS - KOGAKUIN University |
|---|---|
| Registered | Yes |
| Peering policy | Not available |
| IRR AS-set | Not available |
| Registry record last modified | |
| Maintainers | Not available |
| Internet exchanges | Not available |
| Facilities | Not available |
| Network profile updated | Not available |
Data updated . See limitations.