121.48.26.0/23

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.48.0.0/15
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        121.48.0.0 - 121.49.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu 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:  2020-09-03T09:16:00Z
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:          121.48.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.48.26.0/23

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 121.48.0.0/16

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
181.128.159.135 AS13489 UNE EPM TELECOMUNICACIONES S.A. 5.43ms from Bogota, CO
103.7.248.55 AS10075 Fiber@Home Global Limited 0.39ms from Dhaka, BD
1.62.98.7 AS4837 CHINA UNICOM China169 Backbone 3.07ms from Harbin, CN
195.59.202.87 AS1273 Vodafone Group PLC 0.65ms from London, GB
34.149.216.39 AS396982 Google LLC 0.07ms from Melbourne, AU
213.140.208.247 AS35432 Cablenet Communication Systems plc 1.02ms from Nicosia, CY
3.232.154.119 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
220.75.11.7 AS4766 Korea Telecom 3.54ms from Seoul, KR
121.156.151.135 AS4766 Korea Telecom 3.53ms from Seoul, KR
139.199.42.103 AS45090 Shenzhen Tencent Computer Systems Company Limited 4.23ms from Shenzhen, CN
79.103.137.199 AS1241 Forthnet 9.47ms from Sofia, BG
1.158.14.55 AS1221 Telstra Limited 5.90ms from Sydney, AU
153.180.97.183 AS4713 NTT DOCOMO BUSINESS,Inc. 3.00ms from Tokyo, JP
85.146.15.87 AS50266 Odido Netherlands B.V. 4.59ms from Amsterdam, NL
79.206.176.7 AS3320 Deutsche Telekom AG 2.50ms from Berlin, DE
3.30.147.183 AS8987 Amazon Data Services Ireland Ltd 0.34ms from Boardman, US
221.178.60.39 AS9808 China Mobile Communications Group Co., Ltd. 1.54ms from Chongqing, CN
74.139.47.23 AS10796 Charter Communications Inc 18.07ms from Columbus, US
86.140.116.231 AS2856 British Telecommunications PLC 4.60ms from Erith, GB
172.96.89.151 AS64267 Sprious LLC 0.70ms from Los Angeles, US
202.74.188.119 AS7604 Zettagrid Pty Ltd 0.31ms from Melbourne, AU
75.229.142.247 AS6167 Verizon Business 12.54ms from Miami, US
2.35.106.215 AS30722 Fastweb SpA 7.38ms from Milan, IT
82.134.203.39 AS30848 UNIDATA S.p.A. 2.02ms from Milan, IT
125.56.13.199 AS7679 QTnet,Inc. 12.30ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f5 -m23 121.48.26.190
traceroute to 121.48.26.190 (121.48.26.190): 23 hops max, 52 byte packets
7 *
8 *
9 *
10 [] 123.255.91.118 159.479 ms
11 [AS4538] 101.4.114.181 201.165 ms
12 *
13 [AS4538] 101.4.117.81 208.375 ms
14 [AS4538] 101.4.115.249 195.311 ms
15 [AS4538] 101.4.112.14 216.163 ms
16 [AS4538] 101.4.112.49 216.694 ms
17 *
18 [AS4538] 101.4.112.194 241.878 ms
19 *
20 [AS4538] 202.115.255.214 230.926 ms
21 *
22 *
23 *
Measurement taken from IPinfo ProbeNet in Winnipeg, CA
On

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