157.255.40.0/21

AS136958 · China Unicom Guangdong IP network

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Summary

Country	China
Domain	chinaunicom.cn
ASN	AS136958
Parent Range	157.255.0.0/16
Registry	APNIC
ID	UNICOM-GD

WHOIS Details

inetnum:        157.255.0.0 - 157.255.255.255
netname:        UNICOM-GD
descr:          China Unicom Guangdong province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         RP181-AP
abuse-c:        AC1718-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:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-GD
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:12:40Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         zhaoyz3@chinaunicom.cn
abuse-mailbox:  zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
mnt-by:         MAINT-CNCGROUP
last-modified:  2025-11-18T00:26:20Z
source:         APNIC

role:           ABUSE CUCN
country:        ZZ
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
phone:          +000000000
e-mail:         zhaoyz3@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        zhaoyz3@chinaunicom.cn was validated on 2025-10-17
abuse-mailbox:  zhaoyz3@chinaunicom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-17T02:26:56Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
address:        No.21,Jin-Rong Street
address:        Beijing,100033
address:        P.R.China
phone:          +86-10-66259764
fax-no:         +86-10-66259764
country:        CN
mnt-by:         MAINT-CNCGROUP
last-modified:  2017-08-17T06:13:16Z
source:         APNIC

person:         runkeng pan
nic-hdl:        RP181-AP
e-mail:         gdipnoc@chinaunicom.cn
address:        XinShiKong Plaza,No 666 Huangpu Rd. Guangzhou 510627,China
phone:          +86-20-22214174
fax-no:         +86-20-22212266-4174
country:        CN
mnt-by:         MAINT-CNCGROUP-GD
last-modified:  2015-12-16T03:32:02Z
source:         APNIC

route:          157.255.0.0/16
descr:          China Unicom Guangdong Province Network
country:        CN
origin:         AS17816
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2011-04-22T07:04:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 157.255.40.0/21

Range	ASN	Company	Num of IPs
157.255.0.0/16	AS134543	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS135061	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS136958	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS17816	China Unicom Guangdong province network	65,536

Nearby Ranges

BGP prefixes that overlap with 157.255.0.0/16

Range	ASN	Company	Num of IPs
157.255.0.0/16	AS134543	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS135061	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS136958	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS17816	China Unicom Guangdong province network	65,536

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
157.255.44.234	zhkjgx.com	1

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

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

IP Address	ASN	Details
157.255.43.14	AS136958 China Unicom Guangdong IP network	`2.00ms` from Guangzhou, CN
157.255.44.213	AS136958 China Unicom Guangdong IP network	`2.05ms` from Guangzhou, 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
52.200.9.117	AS14618 Amazon.com, Inc.	`0.56ms` from Ashburn, US
40.104.119.5	AS8075 Microsoft Corporation	`0.31ms` from Boydton, US
119.48.118.213	AS4837 CHINA UNICOM China169 Backbone	`1.17ms` from Changchun, CN
99.8.102.69	AS7018 AT&T Enterprises, LLC	`2.54ms` from Dallas, US
37.196.50.5	AS1257 Tele2 Sverige AB	`0.48ms` from Goeteborg, SE
187.204.141.21	AS8151 UNINET	`0.98ms` from Guadalajara, MX
77.101.195.165	AS5089 Virgin Media Limited	`7.93ms` from London, GB
195.14.79.5	AS6894 KDDI Europe Ltd	`0.60ms` from London, GB
188.39.9.37	AS8468 ENTANET International Limited	`0.91ms` from London, GB
35.215.86.37	AS15169 Google LLC	`0.10ms` from Los Angeles, US
34.94.35.165	AS396982 Google LLC	`0.10ms` from Los Angeles, US
82.209.219.53	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`5.71ms` from Minsk, BY
95.64.214.245	AS8359 MTS PJSC	`1.32ms` from Moscow, RU
177.146.231.229	AS26599 TELEFÔNICA BRASIL S.A	`13.05ms` from Osasco, BR
80.13.217.53	AS3215 Orange S.A.	`2.69ms` from Paris, FR
84.108.159.117	AS8551 Bezeq International Ltd.	`0.37ms` from Petaẖ Tiqva, IL
146.235.235.197	AS31898 Oracle Corporation	`0.17ms` from San Jose, US
154.219.82.213	AS44559 IT HOSTLINE LTD	`0.19ms` from Sao Paulo, BR
1.163.254.245	AS3462 Data Communication Business Group	`1.17ms` from Taipei, TW
41.111.95.181	AS36947 Telecom Algeria	`9.71ms` from Valencia, ES
178.188.193.229	AS8447 A1 Telekom Austria AG	`6.32ms` from Vienna, AT
147.45.136.165	AS210976 Timeweb, LLP	`0.49ms` from Amsterdam, NL
52.11.229.101	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
50.204.252.197	AS7922 Comcast Cable Communications, LLC	`1.31ms` from Boston, US
83.25.185.165	AS5617 Orange Polska Spolka Akcyjna	`3.01ms` from Gdansk, PL

Traceroute

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

traceroute -a -n -q1 -f2 -m6 157.255.42.100

traceroute to 157.255.42.100 (157.255.42.100): 6 hops max, 52 byte packets

2 [AS58061] 38.180.36.1 0.262 ms

3 [AS200590] 188.94.153.128 0.783 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

On March 13th 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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