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AS18183

NCREE

National Center for Research on Earthquake Engineering

Registry

Authoritative registration data

AS number
18183
Name
NCREE
Organisation
National Center for Research on Earthquake Engineering
Country
Flag of Taiwan TW Taiwan
RIR
APNIC
Registered
Source:asn:rdap retrieved

IPv4 prefixes

5

IPv6 prefixes

5

Total announced

10

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS18183
61.56.0.0/20 IPv4 /20 RPKI valid
61.56.8.0/21 IPv4 /21 RPKI valid
202.5.12.0/22 IPv4 /22 RPKI valid
103.189.132.0/23 IPv4 /23 RPKI valid
61.56.4.0/24 IPv4 /24 RPKI valid
2001:4500::/32 IPv6 /32 not checked
2400:85a0::/32 IPv6 /32 RPKI valid
2001:4500:1100::/40 IPv6 /40 RPKI valid
2001:4500:1100::/41 IPv6 /41 RPKI valid
2001:4500:1180::/41 IPv6 /41 RPKI valid

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS18183
Address families
FOX 10,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS18183 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

4 networks seen before AS18183 in AS paths

Observed upstreams
Families
AS9264 ASNet 258 1,828
v4 v6
AS7539 TWAREN-TW 238 1,156
v4 v6
AS9505 TWGATE-AP 220 279
v4
AS9681 FOX-TW 39 205
v4

No rows match “”.

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Observed downstreams

1 networks seen after AS18183 in AS paths

Observed downstreams
Families
AS18426 STPI-AS-TW 1 1
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual.