Home Prefix Lookup218.104.104.0/21

218.104.104.0/21 - CHINA UNICOM Industrial Internet Backbone (AS9929)

IPv4APNICannouncedAS9929CUII - CHINA UNICOM Industrial Internet Backbone RPKI Valid

CIDR

218.104.104.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Beijing

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
218.104.104.0/21	AS9929 CUII - CHINA UNICOM Industrial Internet Backbone	Valid	APNIC	2026-10-12

Related Announcements

1 less-specific, 1 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
218.104.96.0/20	AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone	Valid	-	2026-10-12
218.104.111.0/24	AS9929 CUII - CHINA UNICOM Industrial Internet Backbone	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.104.104.0/21	AS9929	/21	apnic
218.104.96.0/20	AS4837	/20	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS9929	APNIC	MAINT-CNCGROUP-RR	2023-06-08

More Specific Prefixes

Prefix	Country	Status
218.104.104.0/25	🇨🇳CN	assigned
218.104.104.128/25	🇨🇳CN	assigned
218.104.105.0/25	🇨🇳CN	assigned
218.104.105.128/25	🇨🇳CN	assigned
218.104.106.0/25	🇨🇳CN	assigned
218.104.106.128/25	🇨🇳CN	assigned
218.104.107.0/25	🇨🇳CN	assigned
218.104.107.128/25	🇨🇳CN	assigned
218.104.108.0/25	🇨🇳CN	assigned
218.104.108.128/25	🇨🇳CN	assigned
218.104.109.0/25	🇨🇳CN	assigned
218.104.109.128/25	🇨🇳CN	assigned

Origin ASN

AS9929

CUII - CHINA UNICOM Industrial Internet Backbone

Related Prefixes

Covering prefix

218.104.96.0/20AS4837

More prefixes of AS9929

All prefixes of AS9929 →

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityBeijing

Coordinates39.9042, 116.4070 ↗

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/218.104.104.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/218.104.104.0/21" | jq

External Links

RIPEstat