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AS23628 Academic newtown Community Cable Service

Japan ACCSnet APNIC 2 IPv4 prefixes 1 IPv6 prefix
IPv4 addresses
12,288
IPv6 /48 networks
65,536
RPKI
0 valid3 no ROA
Peers and downstreams
10

Holder

AS name
ACCSnet
Description
Academic newtown Community Cable Service Tsukuba Mitsui Building 3F,1-6-1,Takezono,Tsukuba-shi,Ibaraki,Japan
Organisation
Academic newtown Community Cable Service
Abuse contact
Not published
Assigned
2003-01-30
Record last changed
2013-06-21 01:07 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS6461 Zayo Bandwidth AS6461 · US Zayo Bandwidth AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS2497 Internet Initiative Japan Inc. AS2497 · JP Internet Initiative J… AS2516 KDDI CORPORATION AS2516 · JP KDDI CORPORATION AS23628 Academic newtown Community Cable Service AS23628 · JP Academic newtown Comm…

Network health

Grade C · 60/100
fail Prefixes covered by valid ROAs
0 of 3 announced prefixes are RPKI valid, 3 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
1 IPv6 prefix.		 15/15
pass More than one upstream
3 upstreams seen in BGP.		 10/10
pass Working abuse contact
hostmaster@nic.ad.jp is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
fail Registry record maintained
Last changed 2013-06-21.		 0/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS23628 health AS23628 RPKI
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Routing changes

Last 30 days
2026-10-04 14:44 UTCNeighbour gone AS9370 upstream
2026-10-04 14:44 UTCRelationship changed AS8966 upstream to peer
2026-10-04 14:44 UTCRelationship changed AS7713 upstream to peer
2026-10-04 14:44 UTCRelationship changed AS20485 upstream to peer
2026-10-04 14:44 UTCNew neighbour AS17686 peer

WHOIS

aut-num:        AS23628
as-name:        ACCSnet
handle:         AS23628
remarks:        Academic newtown Community Cable Service
technical,administrative:JNIC1-AP (Japan Network Information Center) <hostmaster@nic.ad.jp>
technical:      YM12630JP
administrative: TH6493JP
abuse:          IRT-JPNIC-JP (IRT-JPNIC-JP) <hostmaster@nic.ad.jp>
technical:      NM2392JP
last changed:   2013-06-21T01:07:06Z
source:         APNIC (RDAP)