Home Prefix Lookup221.237.0.0/16

221.237.0.0/16 - No.31,Jin Rong Street (AS4134)

IPv4APNICannouncedAS4134CHINANET-BACKBONE - No.31,Jin-rong Street RPKI Valid

CIDR

221.237.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇨🇳 China

City

Chengdu

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
221.237.0.0/16	AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street	Valid	Other IRR	2026-10-12

More-Specific Announcements

6 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
221.237.65.0/24	AS58777 CT2 - ChinaTelecom Cybersecurity Tech	Valid	-	2026-10-12
221.237.152.0/24	AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street	Valid	-	2026-10-12
221.237.154.0/24	AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street	Valid	-	2026-10-12
221.237.180.0/24	AS38283 CHINANET-SCIDC-AS-AP - CHINANET SiChuan Telecom Internet Data Center	Valid	-	2026-10-12
221.237.232.0/24	AS4809 CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network	Valid	-	2026-10-12
221.237.233.0/24	AS4809 CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
221.237.0.0/16	AS4134	/16	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4134	Other IRR	MAINT-CT-GNOC	2023-11-13

More Specific Prefixes

Prefix	Country	Status
221.237.160.0/28	🇨🇳CN	assigned
221.237.160.16/29	🇨🇳CN	assigned
221.237.160.132/30	🇨🇳CN	assigned
221.237.160.136/30	🇨🇳CN	assigned
221.237.160.148/30	🇨🇳CN	assigned
221.237.160.152/29	🇨🇳CN	assigned
221.237.160.164/30	🇨🇳CN	assigned
221.237.160.168/29	🇨🇳CN	assigned
221.237.160.184/29	🇨🇳CN	assigned
221.237.160.216/29	🇨🇳CN	assigned
221.237.160.240/30	🇨🇳CN	assigned
221.237.161.56/29	🇨🇳CN	assigned
221.237.161.192/26	🇨🇳CN	assigned
221.237.161.192/27	🇨🇳CN	assigned
221.237.163.248/30	🇨🇳CN	assigned
221.237.167.112/30	🇨🇳CN	assigned
221.237.169.4/30	🇨🇳CN	assigned
221.237.169.8/29	🇨🇳CN	assigned
221.237.182.0/24	🇨🇳CN	assigned
221.237.183.0/24	🇨🇳CN	assigned
221.237.184.0/24	🇨🇳CN	assigned
221.237.207.6/31	🇨🇳CN	assigned
221.237.207.8/29	🇨🇳CN	assigned
221.237.207.16/30	🇨🇳CN	assigned
221.237.207.20/31	🇨🇳CN	assigned

Origin ASN

AS4134

CHINANET-BACKBONE - No.31,Jin-rong Street

Related Prefixes

More prefixes of AS4134

All prefixes of AS4134 →

Geolocation

Country🇨🇳ChinaCN

RegionSichuan

CityChengdu

Coordinates30.5723, 104.0670 ↗

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/221.237.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/221.237.0.0/16" | jq

External Links

RIPEstat