Home Prefix Lookup218.28.172.0/24

218.28.172.0/24 - CHINA UNICOM China169 Backbone (AS4837)

IPv4APNICannouncedAS4837CHINA169-Backbone - CHINA UNICOM China169 Backbone RPKI Valid

CIDR

218.28.172.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇨🇳 China

City

Zhengzhou (Jinshui Qu)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
218.28.172.0/24	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-13

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
218.28.0.0/15	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.28.172.0/24	AS4837	/24	apnic
218.28.0.0/15	AS4837	/15	apnic

More Specific Prefixes

Prefix	Country	Status
218.28.172.0/27	🇨🇳CN	assigned
218.28.172.32/29	🇨🇳CN	assigned
218.28.172.40/29	🇨🇳CN	assigned
218.28.172.48/30	🇨🇳CN	assigned
218.28.172.52/30	🇨🇳CN	assigned
218.28.172.56/29	🇨🇳CN	assigned
218.28.172.64/27	🇨🇳CN	assigned
218.28.172.96/27	🇨🇳CN	assigned
218.28.172.128/30	🇨🇳CN	assigned
218.28.172.132/30	🇨🇳CN	assigned
218.28.172.136/29	🇨🇳CN	assigned
218.28.172.144/29	🇨🇳CN	assigned
218.28.172.152/30	🇨🇳CN	assigned
218.28.172.156/30	🇨🇳CN	assigned
218.28.172.160/30	🇨🇳CN	assigned
218.28.172.164/30	🇨🇳CN	assigned
218.28.172.168/30	🇨🇳CN	assigned
218.28.172.172/30	🇨🇳CN	assigned
218.28.172.176/30	🇨🇳CN	assigned
218.28.172.180/30	🇨🇳CN	assigned
218.28.172.184/29	🇨🇳CN	assigned
218.28.172.192/29	🇨🇳CN	assigned
218.28.172.200/30	🇨🇳CN	assigned
218.28.172.204/30	🇨🇳CN	assigned
218.28.172.208/29	🇨🇳CN	assigned
218.28.172.216/30	🇨🇳CN	assigned
218.28.172.220/30	🇨🇳CN	assigned
218.28.172.224/28	🇨🇳CN	assigned
218.28.172.240/30	🇨🇳CN	assigned
218.28.172.244/30	🇨🇳CN	assigned
218.28.172.248/30	🇨🇳CN	assigned
218.28.172.252/30	🇨🇳CN	assigned

Origin ASN

AS4837

CHINA169-Backbone - CHINA UNICOM China169 Backbone

Related Prefixes

Covering prefix

218.28.0.0/15AS4837

More prefixes of AS4837

All prefixes of AS4837 →

Geolocation

Country🇨🇳ChinaCN

RegionHenan

CityZhengzhou (Jinshui Qu)

Coordinates34.8283, 113.6770 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/218.28.172.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/218.28.172.0/24" | jq

External Links

RIPEstat