HomePrefix Lookup121.194.0.0/15

121.194.0.0/15

🇨🇳
CIDR
121.194.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇨🇳 China
City
Haidian (Haidian Qu)
RIR
APNIC
Status
allocated
Allocated
7/17/2006

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
121.194.0.0/15AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA
RADB
6/1/2026

Covering Prefix

47 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.192.0.0/14AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.128.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.224.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.192.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.32.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.224.0/19AS24350CNGI-BJ-IX4-AS-AP - CERNET2 IX at Beijing University of Posts and TelecommunicationsNo ROA—6/1/2026
121.195.192.0/19AS138182CNGI-SJZ-IX-AS-AP - CERNET2 regional IX at Hebei Normal UniversityNo ROA—6/1/2026
121.195.96.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.16.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.224.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.144.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.112.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.160.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.16.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.32.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.48.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.64.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.176.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.0.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.96.0/20AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.240.0/20AS138182CNGI-SJZ-IX-AS-AP - CERNET2 regional IX at Hebei Normal UniversityNo ROA—6/1/2026
121.194.80.0/21AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.172.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.88.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.92.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.180.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.172.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.12.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.14.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.112.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.188.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.174.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.116.0/23AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—6/1/2026
121.195.186.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.167.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.195.114.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.10.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.4.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
121.194.13.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—6/1/2026
121.194.11.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.3.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.9.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.8.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.7.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.0.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.194.15.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026
121.195.187.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—6/1/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS4538RADBMAINT-AS463711/13/2023
Geolocation
Country🇨🇳ChinaCN
RegionBeijing
CityHaidian (Haidian Qu)
GEThttps://api.ipctl.io/v1/prefix/121.194.0.0/15

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/121.194.0.0/15" | jq