Home Prefix Lookup121.31.112.0/20

121.31.112.0/20

🇨🇳

IPv4APNICannouncedAS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone RPKI Invalid

CIDR

121.31.112.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇨🇳 China

City

Jinrongjie (Xicheng District)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
121.31.112.0/20	AS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone	Invalid	—	5/31/2026

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
121.31.0.0/16	AS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	—	5/31/2026

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
121.31.0.0/16	AS4837	/16	apnic

More Specific Prefixes

100

Prefix	Country	Status
121.31.123.0/24	🇨🇳CN	assigned
121.31.119.0/24	🇨🇳CN	assigned
121.31.126.128/26	🇨🇳CN	assigned
121.31.127.192/27	🇨🇳CN	assigned
121.31.112.64/27	🇨🇳CN	assigned
121.31.127.160/27	🇨🇳CN	assigned
121.31.114.96/27	🇨🇳CN	assigned
121.31.114.240/28	🇨🇳CN	assigned
121.31.112.96/28	🇨🇳CN	assigned
121.31.113.208/28	🇨🇳CN	assigned
121.31.126.64/28	🇨🇳CN	assigned
121.31.127.0/28	🇨🇳CN	assigned
121.31.126.96/28	🇨🇳CN	assigned
121.31.127.16/28	🇨🇳CN	assigned
121.31.126.208/29	🇨🇳CN	assigned
121.31.114.56/29	🇨🇳CN	assigned
121.31.127.224/29	🇨🇳CN	assigned
121.31.127.88/29	🇨🇳CN	assigned
121.31.113.152/29	🇨🇳CN	assigned
121.31.127.48/29	🇨🇳CN	assigned
121.31.112.152/29	🇨🇳CN	assigned
121.31.112.216/29	🇨🇳CN	assigned
121.31.124.0/29	🇨🇳CN	assigned
121.31.126.0/29	🇨🇳CN	assigned
121.31.127.240/29	🇨🇳CN	assigned
121.31.112.24/29	🇨🇳CN	assigned
121.31.112.184/29	🇨🇳CN	assigned
121.31.127.32/29	🇨🇳CN	assigned
121.31.126.88/29	🇨🇳CN	assigned
121.31.119.128/29	🇨🇳CN	assigned
121.31.112.144/29	🇨🇳CN	assigned
121.31.119.192/29	🇨🇳CN	assigned
121.31.127.40/29	🇨🇳CN	assigned
121.31.112.200/29	🇨🇳CN	assigned
121.31.126.16/29	🇨🇳CN	assigned
121.31.119.112/29	🇨🇳CN	assigned
121.31.114.32/29	🇨🇳CN	assigned
121.31.126.192/29	🇨🇳CN	assigned
121.31.126.200/29	🇨🇳CN	assigned
121.31.119.160/29	🇨🇳CN	assigned
121.31.112.224/29	🇨🇳CN	assigned
121.31.119.72/30	🇨🇳CN	assigned
121.31.119.60/30	🇨🇳CN	assigned
121.31.113.120/30	🇨🇳CN	assigned
121.31.119.56/30	🇨🇳CN	assigned
121.31.127.252/30	🇨🇳CN	assigned
121.31.119.24/30	🇨🇳CN	assigned
121.31.113.64/30	🇨🇳CN	assigned
121.31.114.232/30	🇨🇳CN	assigned
121.31.127.104/30	🇨🇳CN	assigned
121.31.127.96/30	🇨🇳CN	assigned
121.31.114.192/30	🇨🇳CN	assigned
121.31.127.112/30	🇨🇳CN	assigned
121.31.127.208/30	🇨🇳CN	assigned
121.31.113.28/30	🇨🇳CN	assigned
121.31.119.240/30	🇨🇳CN	assigned
121.31.119.124/30	🇨🇳CN	assigned
121.31.113.92/30	🇨🇳CN	assigned
121.31.124.52/30	🇨🇳CN	assigned
121.31.114.228/30	🇨🇳CN	assigned
121.31.127.56/30	🇨🇳CN	assigned
121.31.114.224/30	🇨🇳CN	assigned
121.31.113.136/30	🇨🇳CN	assigned
121.31.114.48/30	🇨🇳CN	assigned
121.31.113.16/30	🇨🇳CN	assigned
121.31.112.212/30	🇨🇳CN	assigned
121.31.114.28/30	🇨🇳CN	assigned
121.31.126.8/30	🇨🇳CN	assigned
121.31.113.4/30	🇨🇳CN	assigned
121.31.112.112/30	🇨🇳CN	assigned
121.31.124.76/30	🇨🇳CN	assigned
121.31.114.8/30	🇨🇳CN	assigned
121.31.113.0/30	🇨🇳CN	assigned
121.31.124.64/30	🇨🇳CN	assigned
121.31.124.60/30	🇨🇳CN	assigned
121.31.113.244/30	🇨🇳CN	assigned
121.31.127.76/30	🇨🇳CN	assigned
121.31.119.80/30	🇨🇳CN	assigned
121.31.119.64/30	🇨🇳CN	assigned
121.31.124.20/30	🇨🇳CN	assigned
121.31.113.224/30	🇨🇳CN	assigned
121.31.112.8/30	🇨🇳CN	assigned
121.31.119.4/30	🇨🇳CN	assigned
121.31.112.244/30	🇨🇳CN	assigned
121.31.112.12/30	🇨🇳CN	assigned
121.31.112.40/30	🇨🇳CN	assigned
121.31.112.44/30	🇨🇳CN	assigned
121.31.112.56/30	🇨🇳CN	assigned
121.31.119.48/30	🇨🇳CN	assigned
121.31.112.120/30	🇨🇳CN	assigned
121.31.112.164/30	🇨🇳CN	assigned
121.31.112.192/30	🇨🇳CN	assigned
121.31.119.36/30	🇨🇳CN	assigned
121.31.112.240/30	🇨🇳CN	assigned
121.31.112.180/30	🇨🇳CN	assigned
121.31.119.248/30	🇨🇳CN	assigned
121.31.112.132/30	🇨🇳CN	assigned
121.31.119.32/30	🇨🇳CN	assigned
121.31.112.124/30	🇨🇳CN	assigned
121.31.119.244/30	🇨🇳CN	assigned

Origin ASN

AS4837

CHINA169-Backbone - CHINA UNICOM China169 Backbone

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityJinrongjie (Xicheng District)

Coordinates39.9236, 116.3600 ↗

API

Open

GEThttps://api.ipctl.io/v1/prefix/121.31.112.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/121.31.112.0/20" | jq

External Links

RIPEstat Hurricane Electric BGP