HomePrefix Lookup121.52.208.0/20

121.52.208.0/20

🇨🇳
IPv4APNICallocatedMOASNo ROA
CIDR
121.52.208.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
City
Beijing
RIR
APNIC
Status
allocated
Allocated
11/7/2007

Announced BGP Routes

2 of 2 routes
MOAS - 2 origin ASNs
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
121.52.208.0/20AS4808CHINA169-BJ - China Unicom Beijing Province NetworkNo ROA—5/31/2026
121.52.208.0/20AS4847CNIX-AP - China Networks Inter-ExchangeNo ROA
RADB
5/31/2026

Covering Prefix

3 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.52.222.0/23AS24404CNISP-UNION - CNISP-Union Technology (Beijing) Co., LtdNo ROA—5/31/2026
121.52.211.0/24AS4847CNIX-AP - China Networks Inter-ExchangeNo ROA—5/31/2026
121.52.221.0/24AS4847CNIX-AP - China Networks Inter-ExchangeNo ROA—5/31/2026

IRR Route Objects

2
OriginRegistryMaintainerModified
AS4847RADBMAINT-AS484711/13/2023
AS56048RADBMAINT-AS5845311/13/2023

More Specific Prefixes

2
PrefixASCountryStatus
121.52.208.0/21🇨🇳CNassigned
121.52.216.0/21🇨🇳CNassigned
Origin ASNs (2)
AS4808MOAS
CHINA169-BJ - China Unicom Beijing Province Network
AS4847MOAS
CNIX-AP - China Networks Inter-Exchange
Geolocation
Country🇨🇳ChinaCN
RegionBeijing
CityBeijing
Coordinates39.9042, 116.4070 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/121.52.208.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/121.52.208.0/20" | jq
External Links
RIPEstat Hurricane Electric BGP