43.251.4.0/22

AS4837  ·  CHINA UNICOM China169 Backbone

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Summary

Country China
Domain chinaunicom.cn
ASN AS4837
Registry APNIC
ID UNICOM-HI

WHOIS Details

inetnum:        43.251.4.0 - 43.251.7.255
netname:        UNICOM-HI
descr:          China Unicom Hainan province network
descr:          China Unicom
country:        CN
admin-c:        YZ225-AP
tech-c:         YZ225-AP
abuse-c:        AC1718-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-CN-CUCGROUP
mnt-lower:      MAINT-CNCGROUP-HI
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:21:19Z
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:         Ying Zhao
nic-hdl:        YZ225-AP
e-mail:         zhy0607@public.ty.sx.cn
address:        Taiyuan Shanxi
phone:          +86-351-4091749
fax-no:         +86-351-4088347
country:        CN
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:30:24Z
source:         APNIC

route:          43.251.4.0/22
descr:          China Unicom CHINA169 Hainan Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2014-11-24T03:20:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 43.251.0.0/16

Range ASN Company Num of IPs
43.251.84.0/22 AS45766 Md. Abdul Kayum Rashed t/a T-Network 1,024
43.251.204.0/22 AS38794 United Information Highway Co.,Ltd. 1,024
43.251.52.0/22 AS38835 Buroserv Australia Pty Ltd 1,024
43.251.224.0/22 AS401696 I LAYER LIMITED 1,024
43.251.224.0/22 AS401701 I LAYER LIMITED 1,024
43.251.204.0/22 AS134100 United Information Highway Co.,Ltd. 1,024
43.251.100.0/22 AS136160 Tianjin Shi Shi Ji Hulian Yuntong Network Technology Co., Ltd. 1,024
43.251.180.0/22 AS16509 Amazon.com, Inc. 1,024
43.251.88.0/22 AS45775 AKASHNET BROADBAND AND SERVICES PRIVATE LIMITED 1,024
43.251.120.0/22 AS17598 LG HelloVision Corp. 1,024
43.251.36.0/22 AS4837 China Unicom Ningxia province network 1,024
43.251.108.0/22 AS17766 Nexon Asia Pacific Pty Ltd 1,024
43.251.144.0/22 AS55547 KRISHNAM REALCON BUILDERS PRIVATE LIMITED 1,024
43.251.104.0/22 AS132839 UNIT 04,7/F,BRIGHT WAY,TOWER NO. 33 MONG KOK ROAD 1,024
43.251.44.0/22 AS208525 Science-Rainbow Technology(Hong Kong) Co., Limited 1,024
43.251.76.0/22 AS208525 3RD EYE ELECTRONICS CO., LIMITED 1,024
43.251.60.0/22 AS131593 PEGATRON 1,024
43.251.48.0/22 AS2519 Earthstar Solution Co., Ltd. 1,024
43.251.0.0/22 AS29119 FOSTERA DIGITAL S.R.L. 1,024
43.251.200.0/22 AS9268 Telarus Pty Ltd 1,024
43.251.132.0/22 AS9381 HKBN Enterprise Solutions HK Limited 1,024
43.251.140.0/22 AS9381 HKBN Enterprise Solutions HK Limited 1,024
43.251.196.0/22 AS9381 HKBN Enterprise Solutions HK Limited 1,024
43.251.20.0/22 AS9381 HKBN Enterprise Solutions HK Limited 1,024
43.251.24.0/22 AS9381 HKBN Enterprise Solutions HK Limited 1,024
43.251.244.0/22 AS9808 China Mobile Communications Corporation 1,024
43.251.18.0/23 AS141201 Jabatan Digital Negara (JDN) 512
43.251.12.0/23 AS10099 China Unicom Global Limited 512
43.251.16.0/23 AS55933 HongKong Virtual Internal Server Company Limited 512
43.251.32.0/23 AS63849 Easy Tone Network Limited 512
43.251.14.0/23 AS10099 China Unicom Global Limited 512
43.251.158.0/24 AS63916 IPTelecom Global Network 256
43.251.113.0/24 AS132825 MYTEK TRADING PTY LTD 256
43.251.106.0/24 AS132839 UNIT 04,7/F,BRIGHT WAY,TOWER NO. 33 MONG KOK ROAD 256
43.251.107.0/24 AS132839 UNIT 04,7/F,BRIGHT WAY,TOWER NO. 33 MONG KOK ROAD 256
43.251.118.0/24 AS133073 Dragon Network Int'l Co. Ltd 256
43.251.119.0/24 AS133073 Dragon Network Int'l Co. Ltd 256
43.251.64.0/24 AS136462 MT 256
43.251.65.0/24 AS136462 MT HK Hong Kong 256
43.251.66.0/24 AS136462 MT HK Hong Kong 256
43.251.67.0/24 AS136462 MT HK Hong Kong 256
43.251.187.0/24 AS142622 Bunny Communications LLC 256
43.251.160.0/24 AS207252 Realtox-Media 256
43.251.161.0/24 AS207252 Realtox-Media 256
43.251.166.0/24 AS22363 Zero2Infinity Cust alloc - AU 256
43.251.84.0/24 AS45766 Triangle-Client 256
43.251.85.0/24 AS45766 Triangle 256
43.251.86.0/24 AS45766 Triangle 256
43.251.87.0/24 AS45766 Triangle 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
43.251.7.254 AS4837 CHINA UNICOM China169 Backbone 11.55ms from Guangzhou, CN
43.251.6.253 AS4837 CHINA UNICOM China169 Backbone 12.08ms 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
46.177.152.150 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.03ms from Athens, GR
96.86.242.86 AS7922 Comcast Cable Communications, LLC 5.71ms from Atlanta, US
35.155.79.6 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
76.130.49.230 AS7922 Comcast Cable Communications, LLC 3.17ms from Denver, US
79.139.5.22 AS23764 CTGNet 0.42ms from Frankfurt am Main, DE
84.226.131.54 AS6730 Sunrise GmbH 1.71ms from Geneve, CH
115.239.70.6 AS4134 CHINANET-BACKBONE 6.96ms from Hangzhou, CN
134.249.138.134 AS15895 "Kyivstar" PJSC 6.92ms from Kyiv, UA
181.114.92.118 AS27839 Comteco Ltda 4.96ms from La Paz, BO
77.50.189.54 AS34602 MEGASVYAZ LLC 1.21ms from Moscow, RU
97.238.247.118 AS6167 Verizon Business 16.04ms from New York City, US
74.92.68.166 AS7922 Comcast Cable Communications, LLC 8.16ms from New York City, US
80.22.241.102 AS3269 Telecom Italia S.p.A. 9.42ms from Rome, IT
201.206.39.54 AS11830 Instituto Costarricense de Electricidad y Telecom. 2.79ms from San Jose, CR
112.223.149.6 AS3786 LG DACOM Corporation 1.49ms from Seoul, KR
210.155.146.54 AS7514 Computer Engineering & Consulting, Ltd. 1.31ms from Tokyo, JP
74.49.139.38 AS21723 GOCO TECHNOLOGY LIMITED PARTNERSHIP 0.35ms from Toronto, CA
20.151.2.102 AS8075 Microsoft Corporation 0.20ms from Toronto, CA
123.54.173.70 AS4134 CHINANET-BACKBONE 9.04ms from Zhengzhou, CN
151.40.38.86 AS1267 WIND TRE S.P.A. 9.82ms from Arezzo, IT
73.173.103.6 AS7922 Comcast Cable Communications, LLC 7.97ms from Ashburn, US
69.140.30.246 AS7922 Comcast Cable Communications, LLC 6.51ms from Ashburn, US
76.20.202.22 AS7922 Comcast Cable Communications, LLC 3.09ms from Atlanta, US
198.2.4.6 AS397749 McLaren Macomb 7.81ms from Chicago, US
77.33.88.22 AS44869 FIBIA P/S 1.03ms from Copenhagen, DK

Traceroute

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

$
traceroute -a -n -q1 -m6 43.251.4.101
traceroute to 43.251.4.101 (43.251.4.101): 6 hops max, 52 byte packets
1 [AS59580] 193.142.30.1 100.208 ms
2 *
3 [AS4837] 219.158.43.21 418.204 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Tehran, IR
On

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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