Home Prefix Lookup211.103.120.0/21

211.103.120.0/21 - China Mobile Communications Corporation (AS56046)

IPv4APNICannouncedAS56046CMNET-Jiangsu-AP - China Mobile communications corporation RPKI Valid

CIDR

211.103.120.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Nanjing

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
211.103.120.0/21	AS56046 CMNET-Jiangsu-AP - China Mobile communications corporation	Valid	APNICOther IRR	2026-10-13

Related Announcements

2 less-specific, 1 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
211.103.0.0/17	AS9808 CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd.	No ROA	-	2026-10-13
211.103.96.0/19	AS56046 CMNET-Jiangsu-AP - China Mobile communications corporation	Valid	-	2026-10-13
211.103.127.0/24	AS56046 CMNET-Jiangsu-AP - China Mobile communications corporation	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
211.103.120.0/21	AS56046	/21	apnic
211.103.96.0/19	AS56046	/19	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS56046	APNIC	MAINT-CN-CMCC	2021-12-10
AS56046	Other IRR	MAINT-AS58453	2023-11-13

More Specific Prefixes

Prefix	Country	Status
211.103.126.216/29	🇨🇳CN	assigned
211.103.126.224/29	🇨🇳CN	assigned
211.103.126.232/29	🇨🇳CN	assigned
211.103.126.240/29	🇨🇳CN	assigned
211.103.126.248/29	🇨🇳CN	assigned

Origin ASN

AS56046

CMNET-Jiangsu-AP - China Mobile communications corporation

Related Prefixes

Covering prefix

211.103.96.0/19AS56046

More prefixes of AS56046

All prefixes of AS56046 →

Geolocation

Country🇨🇳ChinaCN

RegionJiangsu

CityNanjing

Coordinates32.0607, 118.7630 ↗

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/211.103.120.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/211.103.120.0/21" | jq

External Links

RIPEstat