HomePrefix Lookup101.251.240.0/20

101.251.240.0/20

🇨🇳
IPv4APNICannouncedAS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation RPKI Valid
CIDR
101.251.240.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
City
Haidian (Haidian Qu)
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
101.251.240.0/20AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid
RADB
6/13/2026

Covering Prefix

27 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
101.251.224.0/19AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.240.0/21AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.240.0/21AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.248.0/22AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.252.0/22AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.248.0/22AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.252.0/22AS63199CDSC-AS1 - CDS Global Cloud Co., Ltd Valid—6/13/2026
101.251.244.0/23AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.244.0/23AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.241.0/24AS4808CHINA169-BJ - China Unicom Beijing Province Network Valid—6/13/2026
101.251.249.0/24AS4808CHINA169-BJ - China Unicom Beijing Province Network Valid—6/13/2026
101.251.246.0/24AS4808CHINA169-BJ - China Unicom Beijing Province Network Valid—6/13/2026
101.251.250.0/24AS4808CHINA169-BJ - China Unicom Beijing Province Network Valid—6/13/2026
101.251.243.0/24AS4808CHINA169-BJ - China Unicom Beijing Province Network Valid—6/13/2026
101.251.240.0/24AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.247.0/24AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.242.0/24AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.248.0/24AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.251.0/24AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation Valid—6/13/2026
101.251.247.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.249.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.246.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.250.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.242.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.251.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.240.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026
101.251.248.0/24AS56048CMNET-BEIJING-AP - China Mobile Communicaitons Corporation Valid—6/13/2026

RPKI ROAs

2
PrefixOriginMax LengthTrust Anchor
101.251.240.0/20AS23724/20apnic
101.251.224.0/19AS23724/19apnic

IRR Route Objects

1
OriginRegistryMaintainerModified
AS23724RADBMAINT-AS237244/22/2026
Origin ASN
AS23724
CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation
Geolocation
Country🇨🇳ChinaCN
RegionBeijing
CityHaidian (Haidian Qu)
Coordinates39.9608, 116.2890 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/101.251.240.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/101.251.240.0/20" | jq
External Links
RIPEstat Hurricane Electric BGP