1.51.112.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 1.51.0.0/16
Registry APNIC
ID NJR-CERNET

WHOIS Details

inetnum:        1.51.0.0 - 1.51.255.255
netname:        NJR-CERNET
descr:          China Education and Research Network
descr:          Nanjing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
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:  2020-09-03T09:16:03Z
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:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
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:          1.51.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-07-15T07:00:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 1.51.112.0/24

Range ASN Company Num of IPs
1.51.0.0/16 AS4538 China Education and Research Network 65,536

Nearby Ranges

BGP prefixes that overlap with 1.51.0.0/16

Range ASN Company Num of IPs
1.51.0.0/16 AS4538 China Education and Research 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

Pingable IPs

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

IP Address ASN Details
1.51.112.1 AS4538 China Education and Research Network Center 13.50ms from Shanghai, 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
125.162.75.216 AS7713 PT Telekomunikasi Indonesia 8.69ms from Batam, ID
123.103.119.8 AS23724 IDC, China Telecommunications Corporation 3.44ms from Beijing, CN
54.189.126.24 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
18.195.112.168 AS16509 Amazon.com, Inc. 0.11ms from Frankfurt am Main, DE
95.179.163.56 AS20473 The Constant Company, LLC 0.17ms from Frankfurt am Main, DE
86.23.79.120 AS5089 Virgin Media Limited 9.39ms from London, GB
94.6.143.120 AS5607 Sky UK Limited 4.88ms from London, GB
126.110.78.104 AS17676 SoftBank Corp. 9.40ms from Osaka, JP
98.91.28.136 AS14618 Amazon.com, Inc. 0.52ms from Reston, US
1.240.204.168 AS9318 SK Broadband Co Ltd 1.40ms from Seoul, KR
178.236.106.168 AS58224 Iran Telecommunication Company PJS 17.37ms from Yerevan, AM
86.86.162.104 AS1136 KPN B.V. 2.49ms from Amsterdam, NL
204.10.81.88 AS400072 THUNDERBOX INC 2.34ms from Ashburn, US
179.106.77.56 AS263415 EGR NET TELECOMUNICACOES LTDA 9.46ms from Belo Horizonte, BR
76.127.221.184 AS7922 Comcast Cable Communications, LLC 7.99ms from Boston, US
191.251.40.216 AS18881 TELEFÔNICA BRASIL S.A 6.53ms from Curitiba, BR
161.97.154.56 AS51167 Contabo GmbH 0.17ms from Lauterbourg, FR
217.16.210.40 AS28757 Scotnet 14.80ms from London, GB
20.68.29.56 AS8075 Microsoft Corporation 0.18ms from London, GB
192.229.254.8 AS15133 Edgecast Inc. 0.17ms from Los Angeles, US
174.53.153.88 AS7922 Comcast Cable Communications, LLC 3.63ms from Minneapolis, US
194.233.150.56 AS212238 Datacamp Limited 0.34ms from New York City, US
125.106.193.24 AS4134 CHINANET-BACKBONE 6.79ms from Ningbo, CN
175.225.155.168 AS4766 Korea Telecom 1.92ms from Seoul, KR
95.60.41.72 AS12430 VODAFONE ESPANA S.A.U. 8.78ms from Barcelona, ES

Traceroute

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

$
traceroute -a -n -q1 1.51.112.1
traceroute to 1.51.112.1 (1.51.112.1): 64 hops max, 52 byte packets
2 *
4 [] 194.68.128.25 28.759 ms
5 [] 185.75.175.45 31.846 ms
6 *
7 *
8 [] 203.22.177.246 246.849 ms
9 [] 203.144.99.18 249.222 ms
10 [AS4538] 101.4.114.181 289.372 ms
11 *
12 *
13 [AS4538] 101.4.112.66 296.606 ms
14 [AS4538] 101.4.118.214 314.82 ms
15 [AS4538] 101.4.112.62 309.218 ms
16 *
17 [AS4538] 101.4.115.186 344.43 ms
18 [AS4538] 101.4.115.14 303.212 ms
19 [AS4538] 210.45.229.126 278.3 ms
20 [AS4538] 210.45.229.13 300.808 ms
21 [AS4134] 218.23.237.240 333.655 ms
22 [AS4538] 1.51.112.1 311.102 ms
Measurement taken from IPinfo ProbeNet in Helsinki, FI
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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