Home Prefix Lookup203.156.192.0/18

203.156.192.0/18 - China Telecom (Group) (AS4812)

IPv4APNICallocatedAS4812CHINANET-SH-AP - China Telecom (Group)No ROA

CIDR

203.156.192.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇨🇳 China

City

Hongkou (Hongkou Qu)

RIR

APNIC

Status

allocated

Allocated

2004-08-05

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.156.192.0/18	AS4812 CHINANET-SH-AP - China Telecom (Group)	No ROA	Other IRR	2026-10-13

More-Specific Announcements

11 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.156.192.0/23	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.194.0/23	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.196.0/22	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.206.0/23	AS4812 CHINANET-SH-AP - China Telecom (Group)	No ROA	-	2026-10-13
203.156.208.0/24	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.209.0/24	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.212.0/24	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.213.0/24	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.215.0/24	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.216.0/21	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13
203.156.228.0/23	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group)	No ROA	-	2026-10-13

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4812	Other IRR	MAINT-AS3491	2025-03-28

Origin ASN

AS4812

CHINANET-SH-AP - China Telecom (Group)

Related Prefixes

More prefixes of AS4812

All prefixes of AS4812 →

Geolocation

Country🇨🇳ChinaCN

RegionShanghai

CityHongkou (Hongkou Qu)

Coordinates31.2645, 121.5050 ↗

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/203.156.192.0/18

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

curl -s "https://api.ipctl.io/v1/prefix/203.156.192.0/18" | jq

External Links

RIPEstat