Home Prefix Lookup221.199.64.0/18

221.199.64.0/18 - BGP Prefix

IPv4APNICallocated RPKI Valid

CIDR

221.199.64.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇨🇳 China

City

Zhongwei

RIR

APNIC

Status

allocated

Allocated

2006-02-07

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

Related Announcements

1 less-specific, 1 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
221.199.0.0/17	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-13
221.199.82.0/24	AS9929 CUII - CHINA UNICOM Industrial Internet Backbone	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
221.199.0.0/17	AS4837	/17	apnic

More Specific Prefixes

Prefix	Country	Status
221.199.64.0/20	🇨🇳CN	assigned
221.199.80.0/22	🇨🇳CN	assigned
221.199.82.0/23	🇨🇳CN	assigned
221.199.84.0/22	🇨🇳CN	assigned
221.199.88.0/22	🇨🇳CN	assigned
221.199.90.0/23	🇨🇳CN	assigned
221.199.92.0/22	🇨🇳CN	assigned
221.199.96.0/22	🇨🇳CN	assigned
221.199.100.0/22	🇨🇳CN	assigned
221.199.102.0/23	🇨🇳CN	assigned
221.199.104.0/22	🇨🇳CN	assigned
221.199.108.0/23	🇨🇳CN	assigned
221.199.110.0/23	🇨🇳CN	assigned
221.199.112.0/22	🇨🇳CN	assigned
221.199.116.0/22	🇨🇳CN	assigned
221.199.120.0/22	🇨🇳CN	assigned
221.199.124.0/23	🇨🇳CN	assigned
221.199.126.0/23	🇨🇳CN	assigned

Related Prefixes

Covering prefix

221.199.0.0/17AS4837

Geolocation

Country🇨🇳ChinaCN

RegionNingxia

CityZhongwei

Coordinates37.5003, 105.1970 ↗

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/221.199.64.0/18

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

curl -s "https://api.ipctl.io/v1/prefix/221.199.64.0/18" | jq

External Links

RIPEstat