211.81.96.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        211.81.0.0 - 211.82.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         SZ2-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:14Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
source:         APNIC

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         jianping@cernet.edu.cn
nic-hdl:        JW1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Shuang Zhu
address:        China Education and Research Network Information Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-5931
fax-no:         +86-10-6278-5933
e-mail:         szhu@cernet.edu.cn
nic-hdl:        SZ2-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:36Z
source:         APNIC

person:         Xing Li
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         xing@cernet.edu.cn
nic-hdl:        XL1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 211.81.0.0/16

No nearby ranges found.

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

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

IP Address ASN Details
211.81.96.28 AS4538 China Education and Research Network Center 18.20ms from Beijing, 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
40.115.1.56 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
52.217.230.168 AS16509 Amazon.com, Inc. 0.35ms from Ashburn, US
54.72.145.216 AS16509 Amazon.com, Inc. 0.15ms from Dublin, IE
84.171.49.248 AS3320 Deutsche Telekom AG 6.39ms from Duesseldorf, DE
91.7.78.216 AS3320 Deutsche Telekom AG 6.28ms from Frankfurt am Main, DE
16.163.30.88 AS16509 Amazon.com, Inc. 0.12ms from Hong Kong, HK
201.121.59.216 AS8151 UNINET 1.68ms from Mexico City, MX
174.140.97.136 AS11776 Breezeline 3.01ms from Miami, US
148.123.26.40 AS2119 Telenor Norge AS 0.77ms from Oslo, NO
194.223.82.168 AS7545 TPG Telecom Limited 1.26ms from Perth, AU
117.20.119.136 AS45498 SMART AXIATA Co., Ltd. 0.54ms from Phnom Penh, KH
176.174.87.40 AS5410 Bouygues Telecom SA 6.46ms from Saint-Denis, FR
35.247.178.72 AS396982 Google LLC 0.13ms from Singapore, SG
220.57.48.232 AS17676 SoftBank Corp. 3.70ms from Tokyo, JP
145.53.22.232 AS1136 KPN B.V. 1.25ms from Amsterdam, NL
172.172.243.40 AS8075 Microsoft Corporation 0.65ms from Ashburn, US
52.42.30.168 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
172.219.203.88 AS852 TELUS Communications Inc. 1.53ms from Edmonton, CA
205.159.101.232 AS394064 Associated Electric Cooperative, Inc. 5.46ms from Kansas City, US
72.111.6.8 AS6167 Verizon Business 14.88ms from Los Angeles, US
219.108.146.24 AS2516 KDDI CORPORATION 12.84ms from Osaka, JP
20.27.124.56 AS8075 Microsoft Corporation 0.30ms from Osaka, JP
197.5.63.232 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 12.48ms from Tunis, TN
154.248.122.168 AS36947 Telecom Algeria 12.42ms from Algiers, DZ
34.229.205.24 AS14618 Amazon.com, Inc. 0.63ms from Ashburn, US

Traceroute

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

$
traceroute -a -n -q1 -f4 211.81.96.253
traceroute to 211.81.96.253 (211.81.96.253): 64 hops max, 52 byte packets
4 [AS7578] 31.217.251.82 0.371 ms
7 *
8 [AS2914] 129.250.2.189 1.563 ms
10 [AS4538] 101.4.114.221 36.864 ms
11 [AS4538] 101.4.114.169 34.424 ms
12 [AS4538] 101.4.117.161 39.528 ms
13 [AS4538] 101.4.112.2 44.539 ms
14 *
15 [AS4538] 101.4.114.97 52.047 ms
16 [AS4538] 101.4.113.82 53.925 ms
17 *
18 *
19 *
20 [AS4538] 211.81.96.253 50.838 ms
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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