101.76.48.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 101.76.0.0/15
Registry APNIC
ID NJR-CERNET

WHOIS Details

inetnum:        101.76.0.0 - 101.77.255.255
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:  2020-09-03T09:16:24Z
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:          101.76.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-12-13T06:08:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 101.76.48.0/20

Range ASN Company Num of IPs
101.76.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 101.76.0.0/16

Range ASN Company Num of IPs
101.76.0.0/15 AS4538 China Education and Research 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

Pingable IPs

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

IP Address ASN Details
101.76.48.13 AS4538 China Education and Research Network Center 16.54ms from Suzhou, 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
35.71.219.180 AS16509 Amazon.com, Inc. 0.03ms from Bangkok, TH
181.223.161.20 AS28573 Claro NXT Telecomunicacoes Ltda 4.81ms from Campina Grande, BR
66.201.128.100 AS10835 Visionary Communications LLC 5.61ms from Denver, US
36.67.121.196 AS7713 PT Telekomunikasi Indonesia 0.72ms from Jakarta, ID
36.81.92.116 AS7713 PT Telekomunikasi Indonesia 1.71ms from Jakarta, ID
78.85.33.4 AS12389 PJSC Rostelecom 18.88ms from Kazan, RU
178.205.88.4 AS28840 PJSC "TATTELECOM" 1.29ms from Kazan, RU
34.139.66.116 AS396982 Google LLC 0.14ms from Moncks Corner, US
217.112.62.84 AS34949 IDLINE SAS 5.34ms from Paris, FR
79.186.164.116 AS5617 Orange Polska Spolka Akcyjna 5.09ms from Poznan, PL
68.9.122.116 AS22773 Cox Communications Inc. 6.99ms from Providence, US
205.154.156.100 AS2152 CENIC 8.37ms from San Jose, US
177.80.84.244 AS28573 Claro NXT Telecomunicacoes Ltda 5.03ms from Sao Paulo, BR
97.186.86.196 AS6167 Verizon Business 10.32ms from Seattle, US
119.149.110.132 AS45365 LG HelloVision Corp. 4.78ms from Seoul, KR
14.58.38.20 AS4766 Korea Telecom 2.09ms from Seoul, KR
116.233.175.116 AS4812 China Telecom (Group) 5.13ms from Shanghai, CN
121.45.37.132 AS7545 TPG Telecom Limited 5.22ms from Sydney, AU
52.196.84.68 AS16509 Amazon.com, Inc. 0.17ms from Tokyo, JP
182.119.77.52 AS4837 CHINA UNICOM China169 Backbone 6.82ms from Zhengzhou, CN
35.131.133.36 AS20115 Charter Communications LLC 2.02ms from Atlanta, US
23.127.206.84 AS7018 AT&T Enterprises, LLC 1.38ms from Atlanta, US
211.159.152.148 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.98ms from Beijing, CN
69.53.2.36 AS13977 Fidium 5.75ms from Boston, US
89.45.2.4 AS43925 MOLDCELL S.A. 0.30ms from Chisinau, MD

Traceroute

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

$
traceroute -a -n -q1 -f2 -m19 101.76.63.167
traceroute to 101.76.63.167 (101.76.63.167): 19 hops max, 52 byte packets
2 [AS749] 11.73.15.245 0.597 ms
3 [AS749] 11.95.19.41 0.699 ms
4 *
5 *
6 *
7 [AS4538] 101.4.130.65 8.172 ms
8 *
9 *
10 [AS4538] 101.4.112.41 39.89 ms
11 [AS4538] 101.4.116.97 44.255 ms
12 [AS4538] 219.219.156.53 38.836 ms
13 *
14 *
15 [AS4538] 219.219.148.70 42.597 ms
16 [AS4538] 219.219.148.186 43.222 ms
17 *
18 *
19 *
Measurement taken from IPinfo ProbeNet in Zhangjiakou, 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.

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