125.221.2.0/23

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

Sign up for free ›

Summary

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

WHOIS Details

inetnum:        125.220.0.0 - 125.221.255.255
netname:        WHR-CERNET
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:22Z
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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:          125.221.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 125.221.0.0/16

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

Pingable IPs

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

IP Address ASN Details
125.221.2.36 AS4538 China Education and Research Network Center 15.64ms from Guangzhou, 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
174.108.87.247 AS11426 Charter Communications Inc 4.12ms from Charlotte, US
50.40.209.247 AS5650 Frontier Communications of America, Inc. 11.25ms from Chicago, US
80.131.169.231 AS3320 Deutsche Telekom AG 7.95ms from Frankfurt am Main, DE
182.60.80.39 AS9829 National Internet Backbone 16.73ms from Kolkata, IN
148.102.13.23 AS19180 AMERICATEL PERU S.A. 11.92ms from Lima, PE
86.172.129.199 AS2856 British Telecommunications PLC 8.83ms from London, GB
217.206.155.23 AS3257 GTT Communications Inc. 0.76ms from London, GB
58.6.172.215 AS7545 TPG Telecom Limited 11.16ms from Melbourne, AU
93.178.76.39 AS12389 PJSC Rostelecom 16.93ms from Moscow, RU
119.45.149.23 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.01ms from Nanjing, CN
54.80.169.183 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
50.46.158.87 AS20055 Wholesail networks LLC 1.36ms from Seattle, US
32.215.18.231 AS46690 Southern New England Telephone Company and SNET America, Inc. 10.44ms from Secaucus, US
120.76.231.199 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.47ms from Shenzhen, CN
91.221.218.71 AS52074 FOP Hrush Andriy Bogdanovich 8.73ms from Warsaw, PL
130.161.221.39 AS1128 SURF B.V. 1.49ms from Amsterdam, NL
74.235.82.55 AS8075 Microsoft Corporation 0.61ms from Ashburn, US
82.77.31.71 AS8708 DIGI ROMANIA S.A. 7.67ms from Bucharest, RO
64.181.203.183 AS31898 Oracle Corporation 0.34ms from Chicago, US
211.158.229.103 AS4837 CHINA UNICOM China169 Backbone 2.45ms from Chongqing, CN
51.112.187.71 AS16509 Amazon.com, Inc. 0.10ms from Dubai, AE
54.171.37.199 AS16509 Amazon.com, Inc. 0.13ms from Dublin, IE
73.95.169.39 AS7922 Comcast Cable Communications, LLC 5.45ms from Greenwood Village, US
189.178.221.183 AS8151 UNINET 6.11ms from Guadalajara, MX
88.195.5.183 AS1759 Telia Finland Oyj 6.77ms from Helsinki, FI

Traceroute

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

$
traceroute -a -n -q1 -f3 125.221.2.27
traceroute to 125.221.2.27 (125.221.2.27): 64 hops max, 52 byte packets
3 [AS749] 11.110.76.1 0.492 ms
4 *
5 *
6 *
7 *
8 *
9 *
10 [AS4538] 101.4.116.13 15.185 ms
11 *
12 *
13 *
14 [AS4538] 125.221.2.27 15.807 ms
Measurement taken from IPinfo ProbeNet in Guangzhou, 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.

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.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs