125.223.208.0/21

AS4538 · China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

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

WHOIS Details

inetnum:        125.222.0.0 - 125.223.255.255
netname:        SYR-CERNET
descr:          China Education and Research Network
descr:          Shenyang 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:  2020-09-03T09:16:21Z
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

Nearby Ranges

BGP prefixes that overlap with 125.223.0.0/16

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

Read more

Pingable IPs

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

IP Address	ASN	Details
125.223.209.11	AS4538 China Education and Research Network Center	`14.70ms` from Dalian, CN
125.223.208.1	AS4538 China Education and Research Network Center	`10.45ms` from Liaoyang, CN
125.223.212.146	AS4538 China Education and Research Network Center	`10.52ms` from Liaoyang, CN
125.223.213.236	AS4538 China Education and Research Network Center	`10.66ms` from Liaoyang, 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
162.129.182.69	AS5723 Johns Hopkins University	`4.11ms` from Ashburn, US
52.186.175.69	AS8075 Microsoft Corporation	`1.51ms` from Ashburn, US
181.49.204.213	AS14080 Telmex Colombia S.A.	`0.74ms` from Bogota, CO
51.11.120.165	AS8075 Microsoft Corporation	`0.18ms` from Cardiff, GB
34.172.8.213	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
68.86.128.245	AS7922 Comcast Cable Communications, LLC	`1.06ms` from Denver, US
84.167.74.197	AS3320 Deutsche Telekom AG	`7.76ms` from Frankfurt am Main, DE
210.6.82.229	AS9269 Hong Kong Broadband Network Ltd.	`0.84ms` from Hong Kong, HK
72.130.119.101	AS20001 Charter Communications Inc	`10.66ms` from Honolulu, US
197.100.135.85	AS3741 Dimension Data	`0.65ms` from Johannesburg, ZA
77.41.184.85	AS3216 PJSC "Vimpelcom"	`0.45ms` from Krasnoyarsk, RU
78.144.155.85	AS13285 TalkTalk Communications Limited	`11.56ms` from London, GB
97.88.244.213	AS20115 Charter Communications LLC	`14.25ms` from Minneapolis, US
47.17.181.197	AS6128 Cablevision Systems Corp.	`7.94ms` from New York City, US
58.13.114.117	AS17506 ARTERIA Networks Corporation	`1.25ms` from Osaka, JP
78.80.133.21	AS13036 T-Mobile Czech Republic a.s.	`5.59ms` from Prague, CZ
185.40.13.69	AS35574 BRIGHTSTAR LOTTERY S.P.A.	`0.82ms` from Rome, IT
93.162.163.149	AS3292 TDC Holding A/S	`2.59ms` from Skanderborg, DK
71.81.74.101	AS20115 Charter Communications LLC	`5.25ms` from St. Louis, US
79.107.224.37	AS25472 Nova Telecommunications & Media Single Member S.A	`16.26ms` from Volos, GR
24.60.95.133	AS7922 Comcast Cable Communications, LLC	`8.62ms` from Boston, US
20.57.116.229	AS8075 Microsoft Corporation	`0.24ms` from Boydton, US
193.190.215.229	AS2611 BELNET	`0.58ms` from Brussels, BE
178.119.181.229	AS6848 Telenet BV	`6.46ms` from Brussels, BE
91.236.182.53	AS57920 UNDERNET ANYCAST	`0.26ms` from Budapest, HU

Traceroute

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

traceroute -a -n -q1 -f5 125.223.212.146

traceroute to 125.223.212.146 (125.223.212.146): 64 hops max, 52 byte packets

5 [AS4134] 219.149.114.77 5.666 ms

6 *

7 *

8 [AS4538] 101.4.117.225 8.615 ms

9 [AS4538] 101.4.114.233 7.224 ms

10 [AS4538] 101.4.117.86 8.468 ms

11 [AS4538] 101.4.116.46 15.242 ms

12 [AS134810] 36.135.52.191 12.516 ms

13 *

14 *

15 [AS4538] 125.223.212.146 14.962 ms

Measurement taken from

IPinfo ProbeNet in Liaoyang, CN

On December 28th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales