Home Prefix Lookup202.100.16.0/21

202.100.16.0/21 - BGP Prefix

IPv4APNICassigned RPKI Valid

CIDR

202.100.16.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Beijing

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
202.100.0.0/18	AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street	Valid	-	2026-10-13

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
202.100.0.0/18	AS4134	/18	apnic

More Specific Prefixes

Prefix	Country	Status
202.100.16.0/29	🇨🇳CN	assigned
202.100.16.8/29	🇨🇳CN	assigned
202.100.16.16/28	🇨🇳CN	assigned
202.100.16.32/28	🇨🇳CN	assigned
202.100.16.48/28	🇨🇳CN	assigned
202.100.16.64/27	🇨🇳CN	assigned
202.100.16.96/27	🇨🇳CN	assigned
202.100.16.128/27	🇨🇳CN	assigned
202.100.16.160/27	🇨🇳CN	assigned
202.100.16.192/27	🇨🇳CN	assigned
202.100.16.224/28	🇨🇳CN	assigned
202.100.16.240/29	🇨🇳CN	assigned
202.100.17.0/30	🇨🇳CN	assigned
202.100.17.4/30	🇨🇳CN	assigned
202.100.17.8/30	🇨🇳CN	assigned
202.100.17.12/30	🇨🇳CN	assigned
202.100.17.16/30	🇨🇳CN	assigned
202.100.17.20/30	🇨🇳CN	assigned
202.100.17.32/30	🇨🇳CN	assigned
202.100.18.0/26	🇨🇳CN	assigned
202.100.18.64/27	🇨🇳CN	assigned
202.100.18.96/27	🇨🇳CN	assigned
202.100.18.128/27	🇨🇳CN	assigned
202.100.18.160/28	🇨🇳CN	assigned
202.100.18.176/28	🇨🇳CN	assigned
202.100.18.192/27	🇨🇳CN	assigned
202.100.18.224/28	🇨🇳CN	assigned
202.100.18.240/28	🇨🇳CN	assigned
202.100.19.0/28	🇨🇳CN	assigned
202.100.19.16/29	🇨🇳CN	assigned
202.100.19.32/27	🇨🇳CN	assigned
202.100.19.64/26	🇨🇳CN	assigned
202.100.19.128/27	🇨🇳CN	assigned
202.100.19.160/28	🇨🇳CN	assigned
202.100.19.176/28	🇨🇳CN	assigned
202.100.19.192/28	🇨🇳CN	assigned
202.100.19.208/30	🇨🇳CN	assigned
202.100.19.212/30	🇨🇳CN	assigned
202.100.19.216/30	🇨🇳CN	assigned
202.100.19.224/28	🇨🇳CN	assigned
202.100.19.248/29	🇨🇳CN	assigned
202.100.20.0/27	🇨🇳CN	assigned
202.100.20.32/28	🇨🇳CN	assigned
202.100.20.48/28	🇨🇳CN	assigned
202.100.20.64/26	🇨🇳CN	assigned
202.100.20.128/28	🇨🇳CN	assigned
202.100.20.144/28	🇨🇳CN	assigned
202.100.20.160/28	🇨🇳CN	assigned
202.100.20.176/28	🇨🇳CN	assigned
202.100.20.192/27	🇨🇳CN	assigned
202.100.20.224/28	🇨🇳CN	assigned
202.100.20.240/29	🇨🇳CN	assigned
202.100.20.248/29	🇨🇳CN	assigned
202.100.21.0/25	🇨🇳CN	assigned
202.100.21.136/30	🇨🇳CN	assigned
202.100.21.140/30	🇨🇳CN	assigned
202.100.22.0/24	🇨🇳CN	assigned
202.100.23.0/28	🇨🇳CN	assigned
202.100.23.16/28	🇨🇳CN	assigned
202.100.23.32/27	🇨🇳CN	assigned
202.100.23.64/28	🇨🇳CN	assigned
202.100.23.80/28	🇨🇳CN	assigned
202.100.23.96/28	🇨🇳CN	assigned
202.100.23.112/28	🇨🇳CN	assigned
202.100.23.128/27	🇨🇳CN	assigned
202.100.23.160/28	🇨🇳CN	assigned
202.100.23.176/28	🇨🇳CN	assigned
202.100.23.192/28	🇨🇳CN	assigned
202.100.23.208/28	🇨🇳CN	assigned
202.100.23.240/29	🇨🇳CN	assigned
202.100.23.248/29	🇨🇳CN	assigned

Related Prefixes

Covering prefix

202.100.0.0/18AS4134

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/202.100.16.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/202.100.16.0/21" | jq

External Links

RIPEstat