162.105.120.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	pku.edu.cn
ASN	AS4538
Parent Range	162.105.0.0/16
Registry	APNIC
ID	PKU-CN

WHOIS Details

inetnum:        162.105.0.0 - 162.105.255.255
netname:        PKU-CN
descr:          Peking University
descr:          Beijing 100871, China
country:        CN
org:            ORG-CEAR1-AP
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-PKU-CERNET
mnt-routes:     MAINT-PKU-CERNET
mnt-irt:        IRT-CERNET-AP
last-modified:  2023-09-10T23:04:43Z
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

organisation:   ORG-CEAR1-AP
org-name:       China Education and Research Network (CERNET)
country:        CN
address:        FIT 3-220,
address:        Tsinghua University
phone:          +86-10-62785983
fax-no:         +86-10-62785933
e-mail:         hostmaster@cernic.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2018-09-13T12:56:34Z
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

Overlapping Ranges

BGP prefixes that contain 162.105.120.0/24

Range	ASN	Company	Num of IPs
162.105.0.0/16	AS4538	Peking University	65,536

Nearby Ranges

BGP prefixes that overlap with 162.105.0.0/16

Range	ASN	Company	Num of IPs
162.105.0.0/16	AS4538	Peking University	65,536

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

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Pingable IPs

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

IP Address	ASN	Details
162.105.120.21	AS4538 China Education and Research Network Center	`3.50ms` from Tianjin, 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
195.233.250.8	AS12663 VODAFONE GROUP	`3.90ms` from Amsterdam, NL
117.73.10.56	AS23724 IDC, China Telecommunications Corporation	`2.72ms` from Beijing, CN
201.179.154.232	AS22927 Telefonica de Argentina	`7.91ms` from Buenos Aires, AR
75.177.38.216	AS11426 Charter Communications Inc	`4.93ms` from Charlotte, US
173.189.220.24	AS7029 Windstream Communications LLC	`12.46ms` from Chicago, US
99.71.131.40	AS7018 AT&T Enterprises, LLC	`2.21ms` from Los Angeles, US
109.107.125.120	AS200845 AVATEL TELECOM, SA	`9.75ms` from Madrid, ES
216.38.164.8	AS393362 Central Dynamics	`1.69ms` from Miami, US
212.251.240.248	AS2119 Telenor Norge AS	`15.53ms` from Oslo, NO
39.86.208.248	AS4837 CHINA UNICOM China169 Backbone	`4.54ms` from Qingdao, CN
52.52.30.232	AS16509 Amazon.com, Inc.	`0.14ms` from San Jose, US
114.34.235.8	AS3462 Data Communication Business Group	`0.83ms` from Taipei, TW
116.132.207.216	AS4837 CHINA UNICOM China169 Backbone	`7.17ms` from Beijing, CN
20.119.226.56	AS8075 Microsoft Corporation	`0.30ms` from Boydton, US
223.85.83.40	AS9808 China Mobile Communications Group Co., Ltd.	`7.62ms` from Chengdu, CN
172.70.87.72	AS13335 Cloudflare, Inc.	`0.61ms` from Dallas, US
68.51.226.136	AS7922 Comcast Cable Communications, LLC	`11.79ms` from Detroit, US
76.142.181.152	AS7922 Comcast Cable Communications, LLC	`5.58ms` from Houston, US
205.186.125.40	AS401152 Ace Data Centers II, L.L.C.	`0.10ms` from Orem, US
218.219.177.232	AS17961 mitene internet co., ltd.	`5.53ms` from Osaka, JP
54.161.78.88	AS14618 Amazon.com, Inc.	`0.28ms` from Reston, US
5.95.35.56	AS30722 Fastweb SpA	`19.89ms` from Rome, IT
123.11.49.8	AS4837 CHINA UNICOM China169 Backbone	`6.04ms` from Zhengzhou, CN
178.21.1.56	AS196968 Ilm-Provider UG (haftungsbeschraenkt)	`7.34ms` from Berlin, DE
58.20.202.56	AS4837 CHINA UNICOM China169 Backbone	`4.48ms` from Changsha, CN

Traceroute

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

traceroute -a -n -q1 -f8 162.105.120.100

traceroute to 162.105.120.100 (162.105.120.100): 64 hops max, 52 byte packets

8 [AS4538] 219.224.103.86 3.039 ms

9 *

10 *

11 *

12 [AS4538] 202.112.41.2 3.36 ms

13 [AS4538] 162.105.252.234 4.199 ms

14 *

15 [AS4538] 162.105.120.100 3.185 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On April 13th 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.

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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