123.151.126.0/23

AS17638 · ASN for TIANJIN Provincial Net of CT

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Summary

Country	China
Domain	chinatelecom.cn
ASN	AS17638
Parent Range	123.150.0.0/15
Registry	APNIC
ID	CHINANET-TJ

WHOIS Details

inetnum:        123.150.0.0 - 123.151.255.255
netname:        CHINANET-TJ
descr:          CHINANET TIANJIN PROVINCE NETWORK
descr:          Tianjin Telecom Corporation
descr:          NO.11 LIUJING ROAD,HEDONG DISTRICT,TIANJIN
country:        CN
admin-c:        AT370-AP
tech-c:         CH93-AP
abuse-c:        AC1573-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-TJ
mnt-routes:     MAINT-CHINANET-TJ
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:05:00Z
source:         APNIC

irt:            IRT-CHINANET-CN
address:        No.31 ,jingrong street,beijing
address:        100032
e-mail:         anti-spam@chinatelecom.cn
abuse-mailbox:  anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
remarks:        anti-spam@chinatelecom.cn was validated on 2025-11-13
mnt-by:         MAINT-CHINANET
last-modified:  2025-11-18T00:26:23Z
source:         APNIC

role:           ABUSE CHINANETCN
country:        ZZ
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +000000000
e-mail:         anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
nic-hdl:        AC1573-AP
remarks:        Generated from irt object IRT-CHINANET-CN
remarks:        anti-spam@chinatelecom.cn was validated on 2025-11-13
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-13T14:15:15Z
source:         APNIC

person:         admin tjtele
nic-hdl:        AT370-AP
e-mail:         tjipback@yahoo.com
address:        No.11 LIUJING ROAD ,HEDONG ,TIANJIN,CHINA
phone:          +86-22-85580499
fax-no:         +86-22-85580970
country:        CN
mnt-by:         MAINT-CHINANET-TJ
last-modified:  2014-04-01T03:31:13Z
source:         APNIC

person:         Chinanet Hostmaster
nic-hdl:        CH93-AP
e-mail:         anti-spam@chinatelecom.cn
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +86-10-58501724
fax-no:         +86-10-58501724
country:        CN
mnt-by:         MAINT-CHINANET
last-modified:  2022-02-28T06:53:44Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.151.126.0/23

Range	ASN	Company	Num of IPs
123.150.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.150.0.0/15	AS4809	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.150.0.0/15	AS58542	CHINANET TIANJIN PROVINCE NETWORK	131,072

Nearby Ranges

BGP prefixes that overlap with 123.151.0.0/16

Range	ASN	Company	Num of IPs
123.150.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.150.0.0/15	AS4809	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.150.0.0/15	AS58542	CHINANET TIANJIN PROVINCE NETWORK	131,072
123.151.48.0/20	AS58542	GUOXINBEILIN-LTD	4,096
123.151.96.0/20	AS58542	GUOXINBEILIN-LTD	4,096
123.151.128.0/21	AS17638	GUOXINBEILIN-LTD	2,048
123.151.152.0/22	AS58542	HAOWEIGAOKE-LTD	1,024
123.151.92.0/22	AS58542	JUNDETONGXUN-LTD	1,024
123.151.148.0/22	AS58542	HAOWEIGAOKE-LTD	1,024
123.151.146.0/24	AS17638	XINXIGANG-LTD	256
123.151.21.0/24	AS17638	TIANJINDAXUE-SCHOOL	256
123.151.144.0/24	AS58542	TIANJINCHANGKUAN-LTD	256
123.151.147.0/24	AS17638	HAOWEIGAOKE-LTD	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
15.204.227.87	AS16276 OVH SAS	`1.26ms` from Ashburn, US
23.253.153.39	AS27357 Rackspace Hosting	`0.55ms` from Ashburn, US
92.87.196.103	AS9050 Orange Romania S.A.	`0.50ms` from Bucharest, RO
206.253.151.23	AS14615 Comporium, Inc	`7.64ms` from Durham, US
18.194.202.199	AS16509 Amazon.com, Inc.	`0.16ms` from Frankfurt am Main, DE
79.217.17.55	AS3320 Deutsche Telekom AG	`2.97ms` from Frankfurt am Main, DE
134.61.4.119	AS47610 RWTH Aachen University	`4.19ms` from Frankfurt am Main, DE
115.165.166.7	AS45903 CMC Telecom Infrastructure Company	`1.17ms` from Ho Chi Minh City, VN
183.179.94.247	AS9269 Hong Kong Broadband Network Ltd.	`0.93ms` from Hong Kong, HK
122.42.245.199	AS17858 LG POWERCOMM	`2.59ms` from Seoul, KR
45.141.158.39	AS199123 Radibase EOOD	`0.97ms` from Sofia, BG
85.230.191.247	AS8434 Telenor Sverige AB	`0.71ms` from Stockholm, SE
185.119.47.7	AS49163 Kabel-TV Amstetten GMBH	`2.94ms` from Vienna, AT
83.27.146.7	AS5617 Orange Polska Spolka Akcyjna	`6.79ms` from Wrocław, PL
5.141.35.167	AS12389 PJSC Rostelecom	`10.14ms` from Yekaterinburg, RU
23.55.255.55	AS16625 Akamai Technologies, Inc.	`0.25ms` from Atlanta, US
188.115.166.39	AS6876 TENET Scientific Production Enterprise LLC	`3.56ms` from Chisinau, MD
90.206.179.103	AS5607 Sky UK Limited	`5.98ms` from Erith, GB
150.223.34.151	AS58519 Cloud Computing Corporation	`1.04ms` from Hohhot, CN
190.116.10.7	AS12252 America Movil Peru S.A.C.	`1.16ms` from Lima, PE
124.143.114.167	AS9824 JCOM Co., Ltd.	`19.28ms` from Osaka, JP
187.59.38.39	AS18881 TELEFÔNICA BRASIL S.A	`3.62ms` from Osasco, BR
37.69.65.167	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`15.37ms` from Paris, FR
90.49.137.7	AS3215 Orange S.A.	`10.84ms` from Paris, FR
121.22.120.135	AS4837 CHINA UNICOM China169 Backbone	`14.63ms` from Qingdao, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 -m14 123.151.127.62

traceroute to 123.151.127.62 (123.151.127.62): 14 hops max, 52 byte packets

3 [AS60068] 185.229.188.5 18.138 ms

4 [] 169.150.194.246 15.905 ms

5 [AS4134] 81.173.28.9 19.544 ms

6 *

7 *

8 *

9 *

10 [AS4134] 202.97.11.9 275.649 ms

11 [AS17638] 221.239.48.34 277.472 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Zuerich, CH

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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