Home Prefix Lookup211.151.88.0/21

211.151.88.0/21 - CNT NORTHCHINA CERNET New Technology (AS133111)

IPv4APNICannouncedAS133111CNT-NORTHCHINA CERNET New Technology Co., Ltd RPKI Valid

CIDR

211.151.88.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Chaowai (Chaoyang)

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
211.151.88.0/21	AS133111 CNT-NORTHCHINA CERNET New Technology Co., Ltd	Valid	-	2026-10-11

Covering Prefix

7 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
211.151.0.0/16	AS9308 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
211.151.0.0/16	AS9802 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
211.151.0.0/16	AS23724 CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation	Valid	-	2026-10-11
211.151.64.0/18	AS9308 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
211.151.64.0/18	AS9802 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
211.151.64.0/18	AS23724 CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation	Valid	-	2026-10-11
211.151.64.0/19	AS56048 CMNET-BEIJING-AP China Mobile Communicaitons Corporation	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
211.151.0.0/16	AS4808	/32	apnic
211.151.0.0/16	AS4835	/32	apnic
211.151.0.0/16	AS4847	/32	apnic
211.151.0.0/16	AS9308	/32	apnic
211.151.0.0/16	AS9802	/32	apnic
211.151.0.0/16	AS9808	/32	apnic
211.151.0.0/16	AS17428	/32	apnic
211.151.0.0/16	AS23724	/32	apnic
211.151.0.0/16	AS56048	/32	apnic
211.151.0.0/16	AS59020	/32	apnic
211.151.0.0/16	AS133111	/32	apnic
211.151.0.0/16	AS141679	/32	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS17428	Other IRR	MAINT-HGC-INTL	2026-10-02

Origin ASN

AS133111

CNT-NORTHCHINA CERNET New Technology Co., Ltd

Related Prefixes

Covering prefix

211.151.64.0/19AS56048

More prefixes of AS133111

All prefixes of AS133111 →

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityChaowai (Chaoyang)

Coordinates39.9715, 116.4900 ↗

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/211.151.88.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/211.151.88.0/21" | jq

External Links

RIPEstat