Home Prefix Lookup221.237.65.0/24

221.237.65.0/24 - ChinaTelecom Cybersecurity Tech (AS58777)

IPv4APNICannouncedAS58777CT2 - ChinaTelecom Cybersecurity Tech RPKI Valid

CIDR

221.237.65.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

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
221.237.65.0/24	AS58777 CT2 - ChinaTelecom Cybersecurity Tech	Valid	APNIC	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
221.237.0.0/16	AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
221.237.65.0/24	AS58777	/24	apnic
221.237.0.0/16	AS4134	/16	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS58777	APNIC	MAINT-CHINANET-SC	2025-12-26

Origin ASN

AS58777

CT2 - ChinaTelecom Cybersecurity Tech

Related Prefixes

Covering prefix

221.237.0.0/16AS4134

More prefixes of AS58777

All prefixes of AS58777 →

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/221.237.65.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/221.237.65.0/24" | jq

External Links

RIPEstat