Home Prefix Lookup203.196.0.0/21

203.196.0.0/21 - CHINANET IDC BJ AP IDC, China Telecommunications Corporation (AS23724)

IPv4APNICallocatedAS23724CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation RPKI Valid

CIDR

203.196.0.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Beijing

RIR

APNIC

Status

allocated

Allocated

1997-04-11

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.196.0.0/21	AS23724 CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation	Valid	Other IRR	2026-10-11

More-Specific Announcements

7 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.196.0.0/22	AS9308 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
203.196.0.0/23	AS9308 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
203.196.0.0/23	AS9802 CHINA-ABITCOOL AbitcoolChina Inc.	Valid	-	2026-10-11
203.196.4.0/24	AS56048 CMNET-BEIJING-AP China Mobile Communicaitons Corporation	Valid	-	2026-10-11
203.196.5.0/24	AS4808 CHINA169-BJ China Unicom Beijing Province Network	Valid	-	2026-10-11
203.196.6.0/24	AS4808 CHINA169-BJ China Unicom Beijing Province Network	Valid	-	2026-10-11
203.196.7.0/24	AS4835 CHINANET-IDC-SN China Telecom Group	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.196.0.0/21	AS4808	/32	apnic
203.196.0.0/21	AS4835	/32	apnic
203.196.0.0/21	AS9308	/32	apnic
203.196.0.0/21	AS9802	/32	apnic
203.196.0.0/21	AS9808	/32	apnic
203.196.0.0/21	AS23724	/32	apnic
203.196.0.0/21	AS56048	/32	apnic
203.196.0.0/21	AS133111	/32	apnic
203.196.0.0/21	AS141679	/32	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS56048	Other IRR	MAINT-AS58453	2023-11-13
AS23724	Other IRR	MAINT-AS23724	2026-04-22
AS4835	Other IRR	MAINT-AS4835	2023-11-13

More Specific Prefixes

100

Prefix	AS	Country	Status
203.196.0.0/22	AS56048	🇨🇳CN	assigned
203.196.0.0/24		🇨🇳CN	assigned
203.196.0.17/32		🇨🇳CN	assigned
203.196.0.19/32		🇨🇳CN	assigned
203.196.0.20/32		🇨🇳CN	assigned
203.196.0.21/32		🇨🇳CN	assigned
203.196.0.22/32		🇨🇳CN	assigned
203.196.0.23/32		🇨🇳CN	assigned
203.196.0.24/32		🇨🇳CN	assigned
203.196.0.25/32		🇨🇳CN	assigned
203.196.0.26/32		🇨🇳CN	assigned
203.196.0.27/32		🇨🇳CN	assigned
203.196.0.29/32		🇨🇳CN	assigned
203.196.0.30/32		🇨🇳CN	assigned
203.196.0.31/32		🇨🇳CN	assigned
203.196.0.32/32		🇨🇳CN	assigned
203.196.0.33/32		🇨🇳CN	assigned
203.196.0.34/32		🇨🇳CN	assigned
203.196.0.35/32		🇨🇳CN	assigned
203.196.0.37/32		🇨🇳CN	assigned
203.196.0.38/32		🇨🇳CN	assigned
203.196.0.39/32		🇨🇳CN	assigned
203.196.0.42/32		🇨🇳CN	assigned
203.196.0.43/32		🇨🇳CN	assigned
203.196.0.44/32		🇨🇳CN	assigned
203.196.0.45/32		🇨🇳CN	assigned
203.196.0.47/32		🇨🇳CN	assigned
203.196.0.49/32		🇨🇳CN	assigned
203.196.0.50/32		🇨🇳CN	assigned
203.196.0.51/32		🇨🇳CN	assigned
203.196.0.53/32		🇨🇳CN	assigned
203.196.0.54/32		🇨🇳CN	assigned
203.196.0.55/32		🇨🇳CN	assigned
203.196.0.56/32		🇨🇳CN	assigned
203.196.0.59/32		🇨🇳CN	assigned
203.196.0.60/32		🇨🇳CN	assigned
203.196.0.63/32		🇨🇳CN	assigned
203.196.0.64/32		🇨🇳CN	assigned
203.196.0.65/32		🇨🇳CN	assigned
203.196.0.69/32		🇨🇳CN	assigned
203.196.0.70/32		🇨🇳CN	assigned
203.196.0.72/32		🇨🇳CN	assigned
203.196.0.73/32		🇨🇳CN	assigned
203.196.0.74/32		🇨🇳CN	assigned
203.196.0.75/32		🇨🇳CN	assigned
203.196.0.77/32		🇨🇳CN	assigned
203.196.0.78/32		🇨🇳CN	assigned
203.196.0.79/32		🇨🇳CN	assigned
203.196.0.80/32		🇨🇳CN	assigned
203.196.0.81/32		🇨🇳CN	assigned
203.196.0.82/32		🇨🇳CN	assigned
203.196.0.83/32		🇨🇳CN	assigned
203.196.0.85/32		🇨🇳CN	assigned
203.196.0.88/32		🇨🇳CN	assigned
203.196.0.89/32		🇨🇳CN	assigned
203.196.0.101/32		🇨🇳CN	assigned
203.196.0.102/32		🇨🇳CN	assigned
203.196.0.103/32		🇨🇳CN	assigned
203.196.0.104/32		🇨🇳CN	assigned
203.196.0.105/32		🇨🇳CN	assigned
203.196.0.106/32		🇨🇳CN	assigned
203.196.0.107/32		🇨🇳CN	assigned
203.196.0.109/32		🇨🇳CN	assigned
203.196.0.110/32		🇨🇳CN	assigned
203.196.0.111/32		🇨🇳CN	assigned
203.196.0.112/32		🇨🇳CN	assigned
203.196.0.113/32		🇨🇳CN	assigned
203.196.0.114/32		🇨🇳CN	assigned
203.196.0.115/32		🇨🇳CN	assigned
203.196.0.116/32		🇨🇳CN	assigned
203.196.0.117/32		🇨🇳CN	assigned
203.196.0.118/32		🇨🇳CN	assigned
203.196.0.119/32		🇨🇳CN	assigned
203.196.0.121/32		🇨🇳CN	assigned
203.196.0.122/32		🇨🇳CN	assigned
203.196.0.123/32		🇨🇳CN	assigned
203.196.0.124/32		🇨🇳CN	assigned
203.196.0.125/32		🇨🇳CN	assigned
203.196.0.126/32		🇨🇳CN	assigned
203.196.0.127/32		🇨🇳CN	assigned
203.196.0.128/32		🇨🇳CN	assigned
203.196.0.129/32		🇨🇳CN	assigned
203.196.0.131/32		🇨🇳CN	assigned
203.196.2.0/23		🇨🇳CN	assigned
203.196.2.0/24		🇨🇳CN	assigned
203.196.2.0/25		🇨🇳CN	assigned
203.196.2.128/26		🇨🇳CN	assigned
203.196.2.192/27		🇨🇳CN	assigned
203.196.2.224/30		🇨🇳CN	assigned
203.196.2.228/30		🇨🇳CN	assigned
203.196.2.232/30		🇨🇳CN	assigned
203.196.3.0/24		🇨🇳CN	assigned
203.196.3.0/26		🇨🇳CN	assigned
203.196.3.64/26		🇨🇳CN	assigned
203.196.3.128/26		🇨🇳CN	assigned
203.196.3.192/27		🇨🇳CN	assigned
203.196.3.224/28		🇨🇳CN	assigned
203.196.3.240/29		🇨🇳CN	assigned
203.196.3.248/30		🇨🇳CN	assigned
203.196.3.252/31		🇨🇳CN	assigned

Origin ASN

AS23724

CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation

Related Prefixes

More prefixes of AS23724

All prefixes of AS23724 →

Geolocation

Country🇨🇳ChinaCN

RegionBeijing

CityBeijing

Coordinates39.9042, 116.4070 ↗

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/203.196.0.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/203.196.0.0/21" | jq

External Links

RIPEstat