115.26.40.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 115.24.0.0/14
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        115.24.0.0 - 115.27.255.255
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:  2020-09-03T09:16:03Z
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:          115.26.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 115.26.40.0/21

Range ASN Company Num of IPs
115.24.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 115.26.0.0/16

Range ASN Company Num of IPs
115.24.0.0/14 AS4538 China Education and Research Network 262,144

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

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

IP Address ASN Details
115.26.40.33 AS4538 China Education and Research Network Center 5.33ms from Beijing, CN
115.26.41.5 AS4538 China Education and Research Network Center 4.39ms 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
20.85.192.5 AS8075 Microsoft Corporation 0.35ms from Ashburn, US
66.19.166.101 AS7029 Windstream Communications LLC 2.05ms from Atlanta, US
108.169.152.213 AS11426 Charter Communications Inc 1.66ms from Charlotte, US
38.180.91.53 AS58061 Scalaxy B.V. 0.16ms from Dallas, US
20.166.237.69 AS8075 Microsoft Corporation 0.15ms from Dublin, IE
102.161.221.133 AS30999 EMTEL LIMITED 7.54ms from Ebene, MU
46.229.17.5 AS25276 ITMedia GmbH 5.79ms from Frankfurt am Main, DE
93.113.146.5 AS64445 Michele Pietravalle trading as NetJoin 0.24ms from Milan, IT
36.154.84.213 AS56046 China Mobile communications corporation 6.12ms from Nanjing, CN
130.39.0.53 AS2055 Louisiana State University 7.57ms from New Orleans, US
65.112.97.133 AS209 CenturyLink Communications, LLC 0.82ms from New York City, US
82.127.75.53 AS3215 Orange S.A. 3.21ms from Paris, FR
12.78.100.37 AS7018 AT&T Enterprises, LLC 3.61ms from Redding, US
85.113.59.5 AS34533 JSC "ER-Telecom Holding" 0.49ms from Samara, RU
121.180.17.69 AS4766 Korea Telecom 6.74ms from Seoul, KR
3.174.230.245 AS16509 Amazon.com, Inc. 0.09ms from Warsaw, PL
70.126.44.117 AS33363 Charter Communications, Inc 10.50ms from Boca Raton, US
212.192.5.53 AS201021 Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri 0.18ms from Bursa, TR
109.228.255.5 AS34296 Millenicom Telekomunikasyon Hizmetleri Anonim Sirketi 1.35ms from Istanbul, TR
160.22.30.5 AS152798 PT Aufa Berkah Media 0.67ms from Jakarta, ID
69.208.252.133 AS7018 AT&T Enterprises, LLC 2.50ms from Kansas City, US
5.71.214.117 AS5607 Sky UK Limited 2.34ms from London, GB
205.129.2.101 AS3356 Level 3 Parent, LLC 0.34ms from Los Angeles, US
95.190.26.21 AS12389 PJSC Rostelecom 7.33ms from Novosibirsk, RU
194.104.228.21 AS49505 JSC Selectel 0.97ms from Saint Petersburg, RU

Traceroute

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

$
traceroute -a -n -q1 -f11 -m21 115.26.42.212
traceroute to 115.26.42.212 (115.26.42.212): 21 hops max, 52 byte packets
12 *
13 *
14 [AS9808] 221.183.187.18 26.049 ms
15 *
16 [AS4538] 101.4.112.70 30.298 ms
17 *
18 [AS4538] 202.113.14.158 30.51 ms
19 *
20 *
21 *
Measurement taken from IPinfo ProbeNet in Suzhou, 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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