HomePrefix Lookup221.192.0.0/15

221.192.0.0/15

🇨🇳
IPv4APNICallocatedAS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone RPKI Valid
CIDR
221.192.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇨🇳 China
City
Chengde
RIR
APNIC
Status
allocated
Allocated
6/11/2003

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
221.192.0.0/15AS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone Valid
RADB
6/14/2026

Covering Prefix

1 less-specific announcement
PrefixOrigin ASRPKIIRRLast Seen
221.192.166.0/23AS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone Valid—6/14/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
221.192.0.0/15AS4837/15apnic

IRR Route Objects

1
OriginRegistryMaintainerModified
AS4837RADBMAINT-AS5845311/13/2023

More Specific Prefixes

100
PrefixASCountryStatus
221.192.148.0/22🇨🇳CNassigned
221.192.147.0/24🇨🇳CNassigned
221.192.152.0/24🇨🇳CNassigned
221.192.142.0/24🇨🇳CNassigned
221.192.143.0/24🇨🇳CNassigned
221.192.146.0/24🇨🇳CNassigned
221.192.145.0/24🇨🇳CNassigned
221.192.134.0/25🇨🇳CNassigned
221.192.138.0/25🇨🇳CNassigned
221.192.130.0/25🇨🇳CNassigned
221.192.144.128/25🇨🇳CNassigned
221.192.144.64/26🇨🇳CNassigned
221.192.247.128/26🇨🇳CNassigned
221.192.232.64/26🇨🇳CNassigned
221.192.232.0/26🇨🇳CNassigned
221.192.236.64/26🇨🇳CNassigned
221.192.134.192/26🇨🇳CNassigned
221.192.130.128/26🇨🇳CNassigned
221.192.134.128/26🇨🇳CNassigned
221.192.237.128/26🇨🇳CNassigned
221.192.138.128/26🇨🇳CNassigned
221.192.141.0/26🇨🇳CNassigned
221.192.144.0/26🇨🇳CNassigned
221.192.236.0/26🇨🇳CNassigned
221.192.200.0/26🇨🇳CNassigned
221.192.141.64/26🇨🇳CNassigned
221.192.233.0/27🇨🇳CNassigned
221.192.130.224/27🇨🇳CNassigned
221.192.130.192/27🇨🇳CNassigned
221.192.204.64/27🇨🇳CNassigned
221.192.240.32/27🇨🇳CNassigned
221.193.194.32/27🇨🇳CNassigned
221.193.204.96/27🇨🇳CNassigned
221.192.192.192/27🇨🇳CNassigned
221.192.135.64/27🇨🇳CNassigned
221.192.237.192/27🇨🇳CNassigned
221.192.131.32/27🇨🇳CNassigned
221.192.224.64/27🇨🇳CNassigned
221.192.131.224/27🇨🇳CNassigned
221.192.131.192/27🇨🇳CNassigned
221.192.131.160/27🇨🇳CNassigned
221.192.131.128/27🇨🇳CNassigned
221.192.227.32/27🇨🇳CNassigned
221.193.210.0/27🇨🇳CNassigned
221.192.230.16/28🇨🇳CNassigned
221.192.220.112/28🇨🇳CNassigned
221.192.196.192/28🇨🇳CNassigned
221.192.139.0/28🇨🇳CNassigned
221.192.233.80/28🇨🇳CNassigned
221.192.236.224/28🇨🇳CNassigned
221.192.218.224/28🇨🇳CNassigned
221.192.160.48/28🇨🇳CNassigned
221.192.200.32/28🇨🇳CNassigned
221.192.220.160/28🇨🇳CNassigned
221.192.232.32/28🇨🇳CNassigned
221.193.196.48/28🇨🇳CNassigned
221.192.204.96/28🇨🇳CNassigned
221.192.197.0/28🇨🇳CNassigned
221.192.247.240/28🇨🇳CNassigned
221.192.247.16/28🇨🇳CNassigned
221.192.131.16/28🇨🇳CNassigned
221.192.228.160/28🇨🇳CNassigned
221.192.240.16/28🇨🇳CNassigned
221.192.237.32/28🇨🇳CNassigned
221.192.236.192/28🇨🇳CNassigned
221.192.235.112/28🇨🇳CNassigned
221.192.242.64/28🇨🇳CNassigned
221.192.241.16/28🇨🇳CNassigned
221.192.242.0/28🇨🇳CNassigned
221.192.232.16/28🇨🇳CNassigned
221.192.237.80/28🇨🇳CNassigned
221.192.237.0/28🇨🇳CNassigned
221.192.237.48/28🇨🇳CNassigned
221.192.235.16/28🇨🇳CNassigned
221.192.238.0/28🇨🇳CNassigned
221.192.238.32/28🇨🇳CNassigned
221.192.230.48/29🇨🇳CNassigned
221.192.230.32/29🇨🇳CNassigned
221.192.227.112/29🇨🇳CNassigned
221.192.227.16/29🇨🇳CNassigned
221.193.241.24/29🇨🇳CNassigned
221.192.224.184/29🇨🇳CNassigned
221.192.224.96/29🇨🇳CNassigned
221.192.247.200/29🇨🇳CNassigned
221.192.244.208/29🇨🇳CNassigned
221.192.225.40/29🇨🇳CNassigned
221.192.230.88/29🇨🇳CNassigned
221.192.222.96/29🇨🇳CNassigned
221.192.240.240/29🇨🇳CNassigned
221.192.217.104/29🇨🇳CNassigned
221.192.220.240/29🇨🇳CNassigned
221.192.131.8/29🇨🇳CNassigned
221.192.204.80/29🇨🇳CNassigned
221.192.196.160/29🇨🇳CNassigned
221.192.202.104/29🇨🇳CNassigned
221.192.192.64/29🇨🇳CNassigned
221.192.202.40/29🇨🇳CNassigned
221.192.248.136/29🇨🇳CNassigned
221.192.202.24/29🇨🇳CNassigned
221.192.227.24/29🇨🇳CNassigned
Origin ASN
AS4837
CHINA169-Backbone - CHINA UNICOM China169 Backbone
Geolocation
Country🇨🇳ChinaCN
RegionHebei
CityChengde
Coordinates40.9515, 117.9630 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/221.192.0.0/15

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

curl -s "https://api.ipctl.io/v1/prefix/221.192.0.0/15" | jq
External Links
RIPEstat Hurricane Electric BGP