183.172.0.0/16

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 183.172.0.0/14
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        183.172.0.0 - 183.175.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        DNS2.EDU.CN
remarks:        origin AS4538
remarks:        confederation
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-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:13Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
remarks:        [email protected]
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

route:          183.172.0.0/14
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-11-25T07:36:58Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 183.172.0.0/16

Range ASN Company Num of IPs
183.172.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 183.0.0.0/8

Range ASN Company Num of IPs
183.192.0.0/10 AS135054 China Mobile Communications Corporation 4,194,304
183.0.0.0/10 AS4134 CHINANET Guangdong province network 4,194,304
183.192.0.0/10 AS141425 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS9808 China Mobile Communications Corporation 4,194,304
183.0.0.0/10 AS140308 CHINANET Guangdong province network 4,194,304
183.192.0.0/10 AS139080 China Mobile Communications Corporation 4,194,304
183.0.0.0/10 AS134763 CHINANET Guangdong province network 4,194,304
183.0.0.0/10 AS135089 CHINANET Guangdong province network 4,194,304
183.0.0.0/10 AS136199 CHINANET Guangdong province network 4,194,304
183.192.0.0/10 AS132510 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56048 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56047 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56042 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56046 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56041 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS56045 China Mobile Communications Corporation 4,194,304
183.0.0.0/10 AS58466 CHINANET Guangdong province network 4,194,304
183.192.0.0/10 AS56040 China Mobile Communications Corporation 4,194,304
183.192.0.0/10 AS24547 China Mobile Communications Corporation 4,194,304
183.128.0.0/11 AS4134 CHINANET Zhejiang province network 2,097,152
183.160.0.0/13 AS4134 CHINANET Anhui province network 524,288
183.64.0.0/13 AS4134 CHINANET Chongqing Province Network 524,288
183.64.0.0/13 AS134420 CHINANET Chongqing Province Network 524,288
183.160.0.0/13 AS134425 CHINANET Anhui province network 524,288
183.184.0.0/13 AS4837 China Unicom Shanxi province network 524,288
183.92.0.0/14 AS4837 China Unicom Hubei Province Network 262,144
183.172.0.0/14 AS4538 China Education and Research Network 262,144
183.178.0.0/15 AS10103 Hong Kong Broadband Network Ltd 131,072
183.84.0.0/15 AS9308 21ViaNet(China),Inc. 131,072
183.84.0.0/15 AS23724 21ViaNet(China),Inc. 131,072
183.168.0.0/15 AS4538 China Education and Research Network 131,072
183.178.0.0/15 AS9269 Hong Kong Broadband Network Ltd 131,072
183.84.0.0/15 AS4835 21ViaNet(China),Inc. 131,072
183.76.0.0/15 AS4685 Asahi Net 131,072
183.79.0.0/16 AS24572 Yahoo Japan 65,536
183.80.0.0/16 AS18403 FPT Telecom 65,536
183.205.0.0/16 AS24445 China Mobile Communications Corporation - henan 65,536
183.204.0.0/16 AS24445 China Mobile Communications Corporation - henan 65,536
183.176.0.0/16 AS7522 STNet, Incorporated 65,536
183.171.0.0/16 AS10030 Celcom Axiata Berhad 65,536
183.88.0.0/16 AS45758 Triple T Broadband Public Company Limited 65,536
183.89.0.0/16 AS45758 Triple T Broadband Public Company Limited 65,536
183.180.0.0/16 AS2519 ARTERIA Networks Corporation 65,536
183.170.0.0/16 AS4538 China Education and Research Network 65,536
183.204.0.0/16 AS9808 China Mobile Communications Corporation - henan 65,536
183.73.128.0/17 AS9605 NTT DoCoMo, Inc. 32,768
183.75.0.0/17 AS9605 NTT DoCoMo, Inc. 32,768
183.78.0.0/17 AS45960 YTL COMMUNICATIONS SDN BHD 32,768
183.90.0.0/17 AS4657 StarHub Internet Pte Ltd 32,768
183.177.128.0/17 AS2519 ARTERIA Networks Corporation 32,768

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

Pingable IPs

4,901 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
183.172.74.91 AS4538 China Education and Research Network Center 5.80ms from Beijing, CN
183.172.10.150 AS4538 China Education and Research Network Center 5.61ms from Beijing, CN
183.172.69.187 AS4538 China Education and Research Network Center 5.38ms from Beijing, CN
183.172.39.121 AS4538 China Education and Research Network Center 4.29ms from Beijing, CN
183.172.38.95 AS4538 China Education and Research Network Center 5.34ms from Beijing, CN
183.172.98.151 AS4538 China Education and Research Network Center 22.07ms from Zhongwei, CN
183.172.3.254 AS4538 China Education and Research Network Center 2.21ms from Beijing, CN
183.172.79.83 AS4538 China Education and Research Network Center 5.81ms from Beijing, CN
183.172.66.16 AS4538 China Education and Research Network Center 4.54ms from Beijing, CN
183.172.32.3 AS4538 China Education and Research Network Center 3.46ms from Beijing, CN
183.172.130.163 AS4538 China Education and Research Network Center 5.62ms from Beijing, CN
183.172.26.125 AS4538 China Education and Research Network Center 5.09ms from Beijing, CN
183.172.87.66 AS4538 China Education and Research Network Center 10.50ms from Zhangjiakou, CN
183.172.31.155 AS4538 China Education and Research Network Center 4.42ms from Beijing, CN
183.172.59.115 AS4538 China Education and Research Network Center 4.09ms from Beijing, CN
183.172.76.3 AS4538 China Education and Research Network Center 6.12ms from Beijing, CN
183.172.101.208 AS4538 China Education and Research Network Center 6.79ms from Beijing, CN
183.172.64.3 AS4538 China Education and Research Network Center 2.19ms from Beijing, CN
183.172.57.149 AS4538 China Education and Research Network Center 5.56ms from Beijing, CN
183.172.84.149 AS4538 China Education and Research Network Center 7.01ms from Beijing, CN
183.172.111.233 AS4538 China Education and Research Network Center 6.00ms from Beijing, CN
183.172.125.112 AS4538 China Education and Research Network Center 8.36ms from Beijing, CN
183.172.65.219 AS4538 China Education and Research Network Center 5.38ms from Beijing, CN
183.172.47.177 AS4538 China Education and Research Network Center 5.36ms from Beijing, CN
183.172.117.212 AS4538 China Education and Research Network Center 7.38ms 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
59.145.172.240 AS9498 BHARTI Airtel Ltd. 0.36ms from Bengaluru, IN
74.44.98.80 AS5650 Frontier Communications of America, Inc. 13.61ms from Chicago, US
64.24.187.176 AS7029 Windstream Communications LLC 9.20ms from Dallas, US
160.191.237.128 AS135918 VIET DIGITAL TECHNOLOGY LIABILITY COMPANY 0.27ms from Ho Chi Minh City, VN
223.178.149.16 AS45609 Bharti Airtel Ltd. AS for GPRS Service 0.51ms from Lohogaon, IN
213.179.96.208 AS12479 Orange Espagne SA 13.56ms from Marseille, FR
213.57.117.224 AS12849 Hot-Net internet services Ltd. 0.30ms from Petaẖ Tiqva, IL
44.213.23.176 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
69.149.195.48 AS7018 AT&T Enterprises, LLC 4.06ms from San Antonio, US
67.188.72.64 AS7922 Comcast Cable Communications, LLC 6.05ms from San Jose, US
187.123.165.176 AS28573 Claro NXT Telecomunicacoes Ltda 8.67ms from Sao Paulo, BR
36.226.202.112 AS3462 Data Communication Business Group 2.03ms from Taipei, TW
118.236.18.144 AS2527 Sony Network Communications Inc. 10.26ms from Tokyo, JP
184.1.76.0 AS19901 Brightspeed 8.27ms from Ashburn, US
188.25.108.80 AS8708 DIGI ROMANIA S.A. 0.93ms from Bucharest, RO
78.160.211.112 AS9121 Turk Telekomunikasyon Anonim Sirketi 7.78ms from Bursa, TR
18.200.139.64 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
93.205.221.192 AS3320 Deutsche Telekom AG 2.97ms from Duesseldorf, DE
186.249.86.80 AS263024 ARAUJO SAT SERVICOS DE MULTIMIDIA LTDA 10.32ms from Fortaleza, BR
88.67.143.208 AS3209 Vodafone GmbH 17.59ms from Frankfurt am Main, DE
37.136.245.128 AS16086 DNA Oyj 14.29ms from Helsinki, FI
18.61.59.48 AS16509 Amazon.com, Inc. 1.23ms from Hyderabad, IN
211.111.100.64 AS9457 DREAMLINE CO. 2.77ms from Incheon, KR
94.4.243.80 AS5607 Sky UK Limited 8.47ms from London, GB
72.111.33.240 AS6167 Verizon Business 15.03ms from Los Angeles, US

Traceroute

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

$
traceroute -a -n -q1 -f6 183.172.8.3
traceroute to 183.172.8.3 (183.172.8.3): 64 hops max, 52 byte packets
6 [AS4538] 101.4.130.105 4.196 ms
8 *
10 [AS4538] 118.229.4.74 3.617 ms
11 *
12 [AS4538] 183.172.8.3 4.007 ms
Measurement taken from IPinfo ProbeNet in Beijing, CN
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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