HomePrefix Lookup221.0.0.0/15

221.0.0.0/15

🇨🇳
IPv4APNICallocatedAS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone RPKI Valid
CIDR
221.0.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇨🇳 China
City
Jinan
RIR
APNIC
Status
allocated
Allocated
12/24/2002

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
221.0.0.0/15AS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone Valid
APNICRADB
6/14/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
221.0.0.0/15AS4837/15apnic

IRR Route Objects

2
OriginRegistryMaintainerModified
AS4837APNICMAINT-CNCGROUP-RR9/4/2008
AS4837RADBMAINT-AS5845311/13/2023

More Specific Prefixes

100
PrefixASCountryStatus
221.0.236.0/23🇨🇳CNassigned
221.0.234.0/24🇨🇳CNassigned
221.0.238.0/24🇨🇳CNassigned
221.1.96.0/24🇨🇳CNassigned
221.1.98.0/24🇨🇳CNassigned
221.0.230.0/24🇨🇳CNassigned
221.0.232.0/24🇨🇳CNassigned
221.1.220.0/24🇨🇳CNassigned
221.0.235.0/24🇨🇳CNassigned
221.0.157.0/25🇨🇳CNassigned
221.0.203.0/25🇨🇳CNassigned
221.0.182.128/25🇨🇳CNassigned
221.1.222.128/25🇨🇳CNassigned
221.0.183.128/25🇨🇳CNassigned
221.0.181.64/26🇨🇳CNassigned
221.0.171.192/26🇨🇳CNassigned
221.1.221.0/26🇨🇳CNassigned
221.0.201.0/26🇨🇳CNassigned
221.1.222.64/26🇨🇳CNassigned
221.1.206.32/27🇨🇳CNassigned
221.0.76.64/27🇨🇳CNassigned
221.1.104.32/27🇨🇳CNassigned
221.0.90.128/27🇨🇳CNassigned
221.0.108.96/27🇨🇳CNassigned
221.0.91.32/27🇨🇳CNassigned
221.0.205.128/27🇨🇳CNassigned
221.0.90.192/27🇨🇳CNassigned
221.1.222.0/27🇨🇳CNassigned
221.1.205.224/27🇨🇳CNassigned
221.0.171.64/27🇨🇳CNassigned
221.0.194.224/27🇨🇳CNassigned
221.1.97.0/27🇨🇳CNassigned
221.0.77.0/27🇨🇳CNassigned
221.0.90.32/27🇨🇳CNassigned
221.0.76.0/27🇨🇳CNassigned
221.0.76.160/27🇨🇳CNassigned
221.0.108.0/27🇨🇳CNassigned
221.0.90.96/27🇨🇳CNassigned
221.0.76.96/27🇨🇳CNassigned
221.0.108.64/27🇨🇳CNassigned
221.0.90.64/27🇨🇳CNassigned
221.1.104.0/27🇨🇳CNassigned
221.1.222.32/27🇨🇳CNassigned
221.1.204.224/27🇨🇳CNassigned
221.0.90.0/27🇨🇳CNassigned
221.1.81.64/27🇨🇳CNassigned
221.0.90.160/27🇨🇳CNassigned
221.0.112.64/27🇨🇳CNassigned
221.1.204.160/27🇨🇳CNassigned
221.1.206.128/27🇨🇳CNassigned
221.0.112.32/27🇨🇳CNassigned
221.0.90.224/27🇨🇳CNassigned
221.1.82.128/28🇨🇳CNassigned
221.0.112.112/28🇨🇳CNassigned
221.0.171.144/28🇨🇳CNassigned
221.0.77.32/28🇨🇳CNassigned
221.0.91.112/28🇨🇳CNassigned
221.1.82.144/28🇨🇳CNassigned
221.0.169.112/28🇨🇳CNassigned
221.0.169.80/28🇨🇳CNassigned
221.1.82.96/28🇨🇳CNassigned
221.0.213.0/28🇨🇳CNassigned
221.1.81.16/28🇨🇳CNassigned
221.1.83.80/28🇨🇳CNassigned
221.1.82.112/28🇨🇳CNassigned
221.1.80.0/28🇨🇳CNassigned
221.1.223.80/28🇨🇳CNassigned
221.1.83.208/28🇨🇳CNassigned
221.1.104.80/28🇨🇳CNassigned
221.0.195.128/28🇨🇳CNassigned
221.1.83.144/28🇨🇳CNassigned
221.0.91.80/28🇨🇳CNassigned
221.1.81.0/28🇨🇳CNassigned
221.1.73.144/28🇨🇳CNassigned
221.1.82.16/28🇨🇳CNassigned
221.0.76.128/28🇨🇳CNassigned
221.0.76.144/28🇨🇳CNassigned
221.0.91.64/28🇨🇳CNassigned
221.1.83.128/28🇨🇳CNassigned
221.0.213.64/28🇨🇳CNassigned
221.0.205.176/28🇨🇳CNassigned
221.0.213.96/28🇨🇳CNassigned
221.0.77.128/28🇨🇳CNassigned
221.0.112.176/28🇨🇳CNassigned
221.1.75.0/28🇨🇳CNassigned
221.1.80.32/28🇨🇳CNassigned
221.1.82.80/28🇨🇳CNassigned
221.1.81.48/28🇨🇳CNassigned
221.1.206.96/28🇨🇳CNassigned
221.0.222.176/28🇨🇳CNassigned
221.0.213.144/28🇨🇳CNassigned
221.1.81.32/28🇨🇳CNassigned
221.0.188.208/28🇨🇳CNassigned
221.0.187.224/28🇨🇳CNassigned
221.0.180.192/28🇨🇳CNassigned
221.0.187.144/28🇨🇳CNassigned
221.1.221.112/28🇨🇳CNassigned
221.1.221.80/28🇨🇳CNassigned
221.1.223.48/28🇨🇳CNassigned
221.1.123.0/28🇨🇳CNassigned
Origin ASN
AS4837
CHINA169-Backbone - CHINA UNICOM China169 Backbone
Geolocation
Country🇨🇳ChinaCN
RegionShandong
CityJinan
Coordinates36.6518, 117.1200 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/221.0.0.0/15

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

curl -s "https://api.ipctl.io/v1/prefix/221.0.0.0/15" | jq
External Links
RIPEstat Hurricane Electric BGP