Home Prefix Lookup218.21.248.0/22

218.21.248.0/22 - UNICOM InnerMongolia Province Network (AS139007)

IPv4APNICannouncedAS139007UNICOM-NM-WuLanChaBu-IDC - UNICOM InnerMongolia province network RPKI Valid

CIDR

218.21.248.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇨🇳 China

City

Zhangzhou (Neimeng)

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
218.21.248.0/22	AS139007 UNICOM-NM-WuLanChaBu-IDC - UNICOM InnerMongolia province network	Valid	APNIC	2026-10-12

Covering Prefix

2 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
218.21.128.0/17	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-12
218.21.240.0/20	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.21.248.0/22	AS139007	/22	apnic
218.21.240.0/20	AS4837	/20	apnic
218.21.128.0/17	AS4837	/17	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS139007	APNIC	MAINT-CNCGROUP-RR	2019-05-29
AS4837	APNIC	MAINT-CNCGROUP-RR	2019-05-28

Origin ASN

AS139007

UNICOM-NM-WuLanChaBu-IDC - UNICOM InnerMongolia province network

Related Prefixes

Covering prefix

218.21.240.0/20AS4837

More prefixes of AS139007

All prefixes of AS139007 →

Geolocation

Country🇨🇳ChinaCN

RegionFujian

CityZhangzhou (Neimeng)

Coordinates24.6391, 117.1990 ↗

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/218.21.248.0/22

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

curl -s "https://api.ipctl.io/v1/prefix/218.21.248.0/22" | jq

External Links

RIPEstat