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AS18420 National Central University

Taiwan NCU-TW APNIC 1 IPv4 prefix 0 IPv6 prefixes
IPv4 addresses
65,536
IPv6 /48 networks
0
RPKI
1 valid0 no ROA
Peers and downstreams
1

Holder

AS name
NCU-TW
Description
National Central University No.300, Jungda Rd, Jhongli City, Taoyuan
Organisation
National Central University
Abuse contact
Not published
Assigned
2002-12-19
Registered
2008-09-04
Record last changed
2025-11-06 09:25 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS4780 Digital United Inc. AS4780 · TW Digital United Inc. AS18185 4F, No.114, Sec.1, Chung-Shiao W. Road AS18185 · TW 4F, No.114, Sec.1, Ch… AS18420 National Central University AS18420 · TW National Central Univ…

Network health

Grade C · 70/100
pass Prefixes covered by valid ROAs
1 of 1 announced prefixes are RPKI valid.		 25/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
fail Announces IPv6
No IPv6 prefixes are announced.		 0/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
noc@mail.moe.gov.tw 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
pass Registry record maintained
Last changed 2025-11-06.		 5/5
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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AS18420 health AS18420 RPKI
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Routing changes

Last 30 days
2026-10-04 13:11 UTCRelationship changed AS7539 upstream to peer

WHOIS

aut-num:        AS18420
as-name:        NCU-TW
handle:         AS18420
remarks:        National Central University
remarks:        No.300, Jungda Rd, Jhongli City,
remarks:        Taoyuan
abuse:          IRT-TANET-TW (IRT-TANET-TW) <noc@mail.moe.gov.tw>
technical:      SY81-AP (SU-CHIU YANG) <center7@cc.ncu.edu.tw>
administrative: CL184-AP (CHIU-MEI LIU) <center6@cc.ncu.edu.tw>
registration:   2008-09-04T06:40:36Z
last changed:   2025-11-06T09:25:57Z
source:         APNIC (RDAP)