42.81.37.0/24

AS17638 · ASN for TIANJIN Provincial Net of CT

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Summary

Country	China
Domain	chinatelecom.cn
ASN	AS17638
Parent Range	42.80.0.0/15
Registry	APNIC
ID	CHINANET-TJ

WHOIS Details

inetnum:        42.80.0.0 - 42.81.255.255
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:  2021-06-15T08:05:18Z
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 42.81.37.0/24

Range	ASN	Company	Num of IPs
42.80.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
42.80.0.0/15	AS58542	CHINANET TIANJIN PROVINCE NETWORK	131,072

Nearby Ranges

BGP prefixes that overlap with 42.81.0.0/16

Range	ASN	Company	Num of IPs
42.80.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
42.80.0.0/15	AS58542	CHINANET TIANJIN PROVINCE NETWORK	131,072

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

149 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
42.81.37.178	AS17638 ASN for TIANJIN Provincial Net of CT	`3.50ms` from Tianjin, CN

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
151.131.180.72	AS1341 Rockwell Collins, Inc.	`0.06ms` from Chicago, US
190.225.95.24	AS7303 Telecom Argentina S.A.	`1.34ms` from Cordoba, AR
128.198.160.248	AS396425 University of Colorado, Colorado Springs	`1.95ms` from Denver, US
63.32.75.24	AS16509 Amazon.com, Inc.	`0.09ms` from Dublin, IE
121.199.63.56	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.57ms` from Hangzhou, CN
58.154.234.8	AS4538 China Education and Research Network Center	`6.87ms` from Liaoyang, CN
18.134.153.104	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
5.224.136.24	AS12430 VODAFONE ESPANA S.A.U.	`11.79ms` from Madrid, ES
76.148.129.216	AS7922 Comcast Cable Communications, LLC	`3.89ms` from Miami, US
189.160.122.168	AS8151 UNINET	`1.90ms` from Monterrey, MX
153.223.9.104	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.12ms` from Osaka, JP
182.214.11.152	AS17858 LG POWERCOMM	`1.95ms` from Seoul, KR
221.155.31.232	AS4766 Korea Telecom	`1.71ms` from Seoul, KR
91.200.27.216	AS13000 Leon Sp. z o.o.	`4.58ms` from Wrocław, PL
24.88.80.152	AS11426 Charter Communications Inc	`10.40ms` from Charlotte, US
207.74.68.200	AS237 Merit Network Inc.	`9.59ms` from Detroit, US
112.200.21.216	AS9299 Philippine Long Distance Telephone Company	`1.00ms` from Manila, PH
23.209.187.120	AS16625 Akamai Technologies, Inc.	`0.17ms` from Philadelphia, US
54.204.124.232	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
138.36.218.72	AS264220 EQUINIX BRASIL	`0.63ms` from Rio de Janeiro, BR
194.190.36.24	AS207049 OOO "TRK TSARSKOE SELO"	`0.90ms` from Saint Petersburg, RU
73.116.203.72	AS7922 Comcast Cable Communications, LLC	`4.02ms` from San Jose, US
50.115.170.24	AS32875 Wowrack.com	`0.36ms` from Seattle, US
39.29.35.56	AS4766 Korea Telecom	`5.16ms` from Seoul, KR
197.147.100.40	AS36884 Wana Corporate	`7.11ms` from Casablanca, MA

Traceroute

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

traceroute -a -n -q1 42.81.37.152

traceroute to 42.81.37.152 (42.81.37.152): 64 hops max, 52 byte packets

1 [AS21409] 178.170.102.248 0.134 ms

2 *

3 *

4 *

5 [] 80.249.212.76 19.65 ms

6 *

7 *

8 *

9 *

10 [AS17638] 219.150.91.18 262.212 ms

11 [AS17638] 219.150.38.238 228.972 ms

12 *

13 *

14 [AS17638] 42.81.37.152 261.203 ms

Measurement taken from

IPinfo ProbeNet in Reims, FR

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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