Home Prefix Lookup123.151.192.0/19

123.151.192.0/19

🇨🇳

IPv4APNICannouncedAS17638CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT RPKI Valid

CIDR

123.151.192.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇨🇳 China

City

Dawangzhuang (Hedong Qu)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
123.151.192.0/19	AS17638CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT	Valid	APNICRADB	5/31/2026

Covering Prefix

3 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
123.150.0.0/15	AS17638CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT	No ROA	—	5/31/2026
123.151.0.0/16	AS17638CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT	No ROA	—	5/31/2026
123.151.192.0/18	AS4809CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network	Valid	—	5/31/2026

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
123.151.192.0/19	AS17638	/19	apnic
123.151.192.0/18	AS4809	/18	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS17638	APNIC	MAINT-CHINANET-TJ	6/16/2020
AS17638	RADB	MAINT-AS58542	6/13/2025

More Specific Prefixes

Prefix	Country	Status
123.151.195.0/24	🇨🇳CN	assigned
123.151.197.0/26	🇨🇳CN	assigned
123.151.196.0/26	🇨🇳CN	assigned
123.151.196.128/26	🇨🇳CN	assigned
123.151.194.32/27	🇨🇳CN	assigned
123.151.197.96/27	🇨🇳CN	assigned
123.151.196.224/28	🇨🇳CN	assigned
123.151.193.208/28	🇨🇳CN	assigned
123.151.196.208/28	🇨🇳CN	assigned
123.151.196.112/28	🇨🇳CN	assigned
123.151.193.96/28	🇨🇳CN	assigned
123.151.197.208/28	🇨🇳CN	assigned
123.151.194.80/28	🇨🇳CN	assigned
123.151.192.144/28	🇨🇳CN	assigned
123.151.197.176/28	🇨🇳CN	assigned
123.151.194.64/28	🇨🇳CN	assigned
123.151.193.16/28	🇨🇳CN	assigned
123.151.194.112/28	🇨🇳CN	assigned
123.151.194.96/28	🇨🇳CN	assigned
123.151.193.224/28	🇨🇳CN	assigned
123.151.192.80/28	🇨🇳CN	assigned
123.151.192.0/28	🇨🇳CN	assigned
123.151.192.224/28	🇨🇳CN	assigned
123.151.194.144/28	🇨🇳CN	assigned
123.151.192.96/28	🇨🇳CN	assigned
123.151.193.0/28	🇨🇳CN	assigned
123.151.193.144/28	🇨🇳CN	assigned
123.151.193.240/28	🇨🇳CN	assigned
123.151.193.88/29	🇨🇳CN	assigned
123.151.193.168/29	🇨🇳CN	assigned
123.151.193.184/29	🇨🇳CN	assigned
123.151.194.8/29	🇨🇳CN	assigned
123.151.192.72/29	🇨🇳CN	assigned
123.151.194.128/29	🇨🇳CN	assigned
123.151.194.248/29	🇨🇳CN	assigned
123.151.196.80/29	🇨🇳CN	assigned
123.151.196.96/29	🇨🇳CN	assigned
123.151.197.200/29	🇨🇳CN	assigned
123.151.197.224/29	🇨🇳CN	assigned
123.151.194.24/29	🇨🇳CN	assigned
123.151.192.128/29	🇨🇳CN	assigned
123.151.193.120/29	🇨🇳CN	assigned
123.151.194.136/29	🇨🇳CN	assigned
123.151.194.232/29	🇨🇳CN	assigned
123.151.196.248/29	🇨🇳CN	assigned
123.151.197.88/29	🇨🇳CN	assigned
123.151.197.192/29	🇨🇳CN	assigned
123.151.193.192/29	🇨🇳CN	assigned
123.151.197.160/29	🇨🇳CN	assigned
123.151.196.104/29	🇨🇳CN	assigned
123.151.193.112/29	🇨🇳CN	assigned
123.151.194.200/29	🇨🇳CN	assigned
123.151.194.240/29	🇨🇳CN	assigned
123.151.192.64/29	🇨🇳CN	assigned
123.151.192.160/29	🇨🇳CN	assigned
123.151.192.184/29	🇨🇳CN	assigned
123.151.193.80/29	🇨🇳CN	assigned
123.151.193.200/29	🇨🇳CN	assigned
123.151.194.216/29	🇨🇳CN	assigned
123.151.196.64/29	🇨🇳CN	assigned
123.151.197.136/29	🇨🇳CN	assigned
123.151.197.248/29	🇨🇳CN	assigned
123.151.192.240/29	🇨🇳CN	assigned
123.151.192.32/29	🇨🇳CN	assigned
123.151.192.40/29	🇨🇳CN	assigned
123.151.192.136/29	🇨🇳CN	assigned
123.151.193.40/29	🇨🇳CN	assigned
123.151.193.176/29	🇨🇳CN	assigned
123.151.197.144/29	🇨🇳CN	assigned
123.151.192.168/29	🇨🇳CN	assigned
123.151.197.80/29	🇨🇳CN	assigned
123.151.192.248/29	🇨🇳CN	assigned
123.151.194.192/29	🇨🇳CN	assigned
123.151.194.208/29	🇨🇳CN	assigned
123.151.196.240/29	🇨🇳CN	assigned
123.151.197.64/29	🇨🇳CN	assigned
123.151.197.72/29	🇨🇳CN	assigned
123.151.197.128/29	🇨🇳CN	assigned
123.151.197.240/29	🇨🇳CN	assigned
123.151.196.76/30	🇨🇳CN	assigned
123.151.197.156/30	🇨🇳CN	assigned
123.151.197.232/30	🇨🇳CN	assigned
123.151.197.152/30	🇨🇳CN	assigned
123.151.196.92/30	🇨🇳CN	assigned
123.151.194.228/30	🇨🇳CN	assigned
123.151.194.224/30	🇨🇳CN	assigned
123.151.193.36/30	🇨🇳CN	assigned
123.151.193.164/30	🇨🇳CN	assigned
123.151.193.64/30	🇨🇳CN	assigned
123.151.196.88/30	🇨🇳CN	assigned
123.151.192.120/30	🇨🇳CN	assigned
123.151.193.76/30	🇨🇳CN	assigned
123.151.193.68/30	🇨🇳CN	assigned
123.151.193.32/30	🇨🇳CN	assigned

Origin ASN

AS17638

CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT

Geolocation

Country🇨🇳ChinaCN

RegionTianjin

CityDawangzhuang (Hedong Qu)

Coordinates39.1296, 117.2180 ↗

API

Open

GEThttps://api.ipctl.io/v1/prefix/123.151.192.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/123.151.192.0/19" | jq

External Links

RIPEstat Hurricane Electric BGP