101.4.156.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	101.4.0.0/14
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        101.4.0.0 - 101.7.255.255
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:        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 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

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:          101.4.0.0/14
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-12-13T06:08:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 101.4.156.0/24

Range	ASN	Company	Num of IPs
101.4.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 101.4.0.0/16

Range	ASN	Company	Num of IPs
101.4.0.0/14	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

Read more

Pingable IPs

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

IP Address	ASN	Details
101.4.156.19	AS4538 China Education and Research Network Center	`2.79ms` 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
54.161.234.56	AS14618 Amazon.com, Inc.	`0.54ms` from Ashburn, US
212.251.123.104	AS1241 Forthnet	`7.95ms` from Athens, GR
72.22.115.136	AS16433 NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION	`9.44ms` from Atlanta, US
108.156.148.88	AS16509 Amazon.com, Inc.	`0.08ms` from Atlanta, US
120.9.215.136	AS4837 CHINA UNICOM China169 Backbone	`9.71ms` from Beijing, CN
188.119.177.216	AS49687 RoSite Equipment SRL	`0.30ms` from Bucharest, RO
35.192.216.152	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
222.252.93.88	AS45899 VNPT Corp	`0.98ms` from Hanoi, VN
201.121.197.216	AS8151 UNINET	`1.67ms` from Mexico City, MX
58.191.175.216	AS17511 OPTAGE Inc.	`2.21ms` from Osaka, JP
23.223.236.8	AS16625 Akamai Technologies, Inc.	`0.14ms` from Osasco, BR
90.78.76.216	AS3215 Orange S.A.	`8.35ms` from Paris, FR
90.79.55.56	AS3215 Orange S.A.	`1.93ms` from Paris, FR
89.80.178.248	AS5410 Bouygues Telecom SA	`9.25ms` from Paris, FR
119.114.4.88	AS4837 CHINA UNICOM China169 Backbone	`3.38ms` from Tieling, CN
126.121.124.104	AS17676 SoftBank Corp.	`4.38ms` from Tokyo, JP
34.17.240.24	AS396982 Google LLC	`0.15ms` from Turin, IT
143.178.131.88	AS50266 Odido Netherlands B.V.	`5.24ms` from Amsterdam, NL
156.34.144.136	AS855 Bell Canada	`7.60ms` from Fredericton, CA
218.14.157.136	AS4134 CHINANET-BACKBONE	`3.61ms` from Guangzhou, CN
60.12.123.40	AS4837 CHINA UNICOM China169 Backbone	`9.36ms` from Hangzhou, CN
18.61.13.8	AS16509 Amazon.com, Inc.	`1.21ms` from Hyderabad, IN
84.211.104.56	AS25400 Telia Norge AS	`7.25ms` from Sandefjord, NO
175.208.25.232	AS4766 Korea Telecom	`5.91ms` from Seoul, KR
203.209.191.152	AS45629 JasTel Network International Gateway	`0.18ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f3 101.4.156.2

traceroute to 101.4.156.2 (101.4.156.2): 64 hops max, 52 byte packets

3 [AS749] 11.62.82.162 1.792 ms

4 [AS749] 11.62.83.177 0.951 ms

5 *

6 [AS141679] 106.63.0.165 1.699 ms

7 [AS141679] 106.63.121.105 0.484 ms

8 *

9 *

10 *

11 *

12 [AS4538] 101.4.116.90 11.433 ms

13 [AS4538] 101.4.156.10 5.153 ms

14 [AS4538] 101.4.156.2 3.227 ms

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

On March 21st 2026

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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