Home Prefix Lookup218.78.112.0/21

218.78.112.0/21 - China Telecom (Group) (AS4811)

IPv4APNICannouncedAS4811CHINANET-SHANGHAI-MAN - China Telecom (Group) RPKI Valid

CIDR

218.78.112.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Shanghai

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
218.78.112.0/21	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	Valid	Other IRR	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
218.78.0.0/17	AS4812 CHINANET-SH-AP - China Telecom (Group)	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.78.112.0/21	AS4811	/21	apnic
218.78.0.0/17	AS4812	/17	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4811	Other IRR	MAINT-AS4812	2023-11-13

Origin ASN

AS4811

CHINANET-SHANGHAI-MAN - China Telecom (Group)

Related Prefixes

Covering prefix

218.78.0.0/17AS4812

More prefixes of AS4811

All prefixes of AS4811 →

Geolocation

Country🇨🇳ChinaCN

RegionShanghai

CityShanghai

Coordinates31.2304, 121.4740 ↗

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/218.78.112.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/218.78.112.0/21" | jq

External Links

RIPEstat