Home Prefix Lookup211.157.0.0/19

211.157.0.0/19 - China Unicom Beijing Province Network (AS4808)

IPv4APNICassignedAS4808CHINA169-BJ - China Unicom Beijing Province NetworkNo ROA

CIDR

211.157.0.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇨🇳 China

City

Haidian (Haidian Qu)

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
211.157.0.0/19	AS4808 CHINA169-BJ - China Unicom Beijing Province Network	No ROA	-	2026-10-12

More-Specific Announcements

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
211.157.16.0/22	AS4812 CHINANET-SH-AP - China Telecom (Group)	No ROA	-	2026-10-12

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS24134	APNIC	MAINT-CN-CSTNET	2009-05-23
AS56048	Other IRR	MAINT-AS58453	2023-11-13
AS24134	Other IRR	MAINT-AS4637	2023-11-13

More Specific Prefixes

Prefix	Country	Status
211.157.0.0/20	🇨🇳CN	assigned
211.157.0.0/22	🇨🇳CN	assigned
211.157.4.0/22	🇨🇳CN	assigned
211.157.8.0/22	🇨🇳CN	assigned
211.157.12.0/22	🇨🇳CN	assigned
211.157.20.0/22	🇨🇳CN	assigned
211.157.24.0/22	🇨🇳CN	assigned
211.157.28.0/24	🇨🇳CN	assigned

Origin ASN

AS4808

CHINA169-BJ - China Unicom Beijing Province Network

Related Prefixes

More prefixes of AS4808

All prefixes of AS4808 →

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityHaidian (Haidian Qu)

Coordinates39.9071, 116.3230 ↗

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/211.157.0.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/211.157.0.0/19" | jq

External Links

RIPEstat