42.122.0.0/21

AS17638 · ASN for TIANJIN Provincial Net of CT

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Summary

Country	China
Domain	chinatelecom.cn
ASN	AS17638
Parent Range	42.122.0.0/16
Registry	APNIC
ID	CHINANET-TJ

WHOIS Details

inetnum:        42.122.0.0 - 42.122.255.255
netname:        CHINANET-TJ
descr:          CHINANET TIANJIN PROVINCE NETWORK
descr:          China Telecom
descr:          NO.11 LIUJING ROAD,HEDONG DISTRICT,TIANJIN
country:        CN
admin-c:        CH93-AP
tech-c:         AT370-AP
abuse-c:        AC1573-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
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:        --------------------------------------------------------
notify:         tjipadmin@163.com
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-TJ
mnt-routes:     MAINT-CHINANET-TJ
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:05:43Z
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 42.122.0.0/21

Range	ASN	Company	Num of IPs
42.122.0.0/16	AS17638	CHINANET TIANJIN PROVINCE NETWORK	65,536

Nearby Ranges

BGP prefixes that overlap with 42.122.0.0/16

Range	ASN	Company	Num of IPs
42.122.0.0/16	AS17638	CHINANET TIANJIN PROVINCE NETWORK	65,536

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
120.80.194.21	AS17816 China Unicom IP network China169 Guangdong province	`9.11ms` from Guangzhou, CN
141.43.246.5	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`14.73ms` from Hamburg, DE
212.241.252.5	AS5413 Wavenet Limited	`0.47ms` from London, GB
73.55.67.85	AS7922 Comcast Cable Communications, LLC	`9.13ms` from Miami, US
77.50.62.181	AS34602 MEGASVYAZ LLC	`1.16ms` from Moscow, RU
110.42.8.165	AS56041 China Mobile communications corporation	`0.36ms` from Ningbo, CN
64.202.189.5	AS398101 GoDaddy.com, LLC	`0.96ms` from Phoenix, US
151.72.118.69	AS1267 WIND TRE S.P.A.	`9.23ms` from Rome, IT
31.27.59.213	AS30722 Fastweb SpA	`9.33ms` from Rome, IT
80.254.19.197	AS39101 Piter-telecom Ltd.	`1.66ms` from Saint Petersburg, RU
136.60.136.133	AS16591 Google Fiber Inc.	`1.24ms` from Salt Lake City, US
177.68.135.245	AS27699 TELEFÔNICA BRASIL S.A	`2.34ms` from Sao Paulo, BR
179.234.161.181	AS28573 Claro NXT Telecomunicacoes Ltda	`7.84ms` from Sao Paulo, BR
192.192.0.101	AS1659 Taiwan Academic Network (TANet) Information Center	`0.96ms` from Taipei, TW
35.75.80.245	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
82.177.105.21	AS199715 MSI Telekom Sp. z o.o. Sp. k.	`9.66ms` from Warsaw, PL
40.115.51.149	AS8075 Microsoft Corporation	`0.16ms` from Amsterdam, NL
205.186.37.37	AS2722 CULR, LLC	`5.89ms` from Atlanta, US
183.66.244.117	AS4134 CHINANET-BACKBONE	`1.39ms` from Chongqing, CN
188.120.68.149	AS31027 GlobalConnect A/S	`0.75ms` from Copenhagen, DK
34.72.252.37	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
102.212.73.133	AS30985 Orange Mali SA	`19.85ms` from Dakar, SN
68.55.247.85	AS7922 Comcast Cable Communications, LLC	`11.09ms` from Flint, US
91.35.109.165	AS3320 Deutsche Telekom AG	`7.73ms` from Frankfurt am Main, DE
84.164.212.165	AS3320 Deutsche Telekom AG	`6.13ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f4 -m14 42.122.1.236

traceroute to 42.122.1.236 (42.122.1.236): 14 hops max, 52 byte packets

4 [AS28917] 80.77.167.215 35.822 ms

5 *

6 *

7 *

8 [AS4134] 202.97.61.133 264.481 ms

9 *

10 *

11 [AS17638] 219.150.51.2 260.234 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Kharkiv, UA

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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