206208 looking glass

121.250.0.0/15 no ROA

Announced by AS4538 China Education and Research Network Center.

Origin

Origin ASRPKI Peers seeing itSample path First seenLast seen
AS4538 China Education and Research Network Center no ROA 16 244824538 2026-09-18 2026-10-20

RPKI

No ROA covers this prefix

No ROA covers this prefix, so origin validation returns "unknown". That is not a fault; most of the table is still unsigned.

Registry

Who this address space is delegated to, regardless of whether it is routed

Delegated block
121.248.0.0/14
RIR
APNIC
Country
🇨🇳 CN
Status
allocated
Allocated
2006-09-18

Less specific routes

Announced prefixes that contain this one

Prefix Origin RPKI Peers Sample path First seen
121.248.0.0/14 v4 AS4538 China Education and Research Network Center no ROA 49 244824538 2026-09-18

More specific routes

49 announced prefixes inside this one

Prefix Origin RPKI Peers First seen
121.250.0.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.16.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.24.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.32.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.48.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.50.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.250.51.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.250.56.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.64.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.80.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-28
121.250.80.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-28
121.250.88.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.96.0/19 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.128.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.128.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.250.136.0/24 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.144.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.160.0/19 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.187.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.250.190.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.250.192.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.208.0/20 v4 AS4538 China Education and Research Network Center no ROA 13 2026-09-18
121.250.224.0/21 v4 AS4538 China Education and Research Network Center no ROA 13 2026-09-18
121.250.232.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.250.240.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.0.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.16.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.24.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.26.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.28.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.32.0/22 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.36.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.48.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.50.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.52.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.251.56.0/23 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.64.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.88.0/21 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.128.0/24 v4 AS4538 China Education and Research Network Center RPKI valid 1 2026-09-18
121.251.132.0/22 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.136.0/21 v4 AS4538 China Education and Research Network Center no ROA 4 2026-09-18
121.251.144.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-10-13
121.251.160.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.176.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.192.0/20 v4 AS4538 China Education and Research Network Center no ROA 1 2026-09-18
121.251.208.0/21 v4 AS4538 China Education and Research Network Center no ROA 4 2026-09-18
121.251.216.0/21 v4 AS4538 China Education and Research Network Center no ROA 4 2026-09-18
121.251.224.0/20 v4 AS4538 China Education and Research Network Center no ROA 4 2026-09-18
121.251.240.0/20 v4 AS4538 China Education and Research Network Center no ROA 4 2026-09-18