219.225.128.0/19

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	BJR-CERNET

WHOIS Details

inetnum:        219.224.0.0 - 219.226.255.255
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:54Z
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

Nearby Ranges

BGP prefixes that overlap with 219.225.0.0/16

No nearby ranges found.

Hosted domains

There are 3 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
219.225.128.4	emnelge.com	3

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

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

IP Address	ASN	Details
219.225.148.117	AS4538 China Education and Research Network Center	`29.01ms` from Beijing, CN
219.225.155.1	AS4538 China Education and Research Network Center	`30.84ms` from Beijing, CN
219.225.128.253	AS4538 China Education and Research Network Center	`12.18ms` from Beijing, CN
219.225.146.8	AS4538 China Education and Research Network Center	`28.68ms` from Beijing, CN
219.225.135.16	AS4538 China Education and Research Network Center	`29.90ms` 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
8.140.62.51	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.71ms` from Beijing, CN
151.213.155.227	AS7029 Windstream Communications LLC	`13.13ms` from Chicago, US
73.50.176.67	AS7922 Comcast Cable Communications, LLC	`5.32ms` from Chicago, US
79.241.173.163	AS3320 Deutsche Telekom AG	`7.61ms` from Frankfurt am Main, DE
170.178.181.227	AS46844 Sharktech	`0.19ms` from Los Angeles, US
34.24.1.227	AS396982 Google LLC	`0.17ms` from Moncks Corner, US
179.25.72.195	AS6057 Administracion Nacional de Telecomunicaciones	`1.64ms` from Montevideo, UY
95.239.39.83	AS3269 Telecom Italia S.p.A.	`3.73ms` from Naples, IT
37.58.197.179	AS16347 ADISTA SAS	`0.70ms` from Paris, FR
86.192.176.147	AS3215 Orange S.A.	`4.29ms` from Paris, FR
103.6.8.179	AS17726 Telecom Cambodia	`1.20ms` from Phnom Penh, KH
80.48.61.67	AS5617 Orange Polska Spolka Akcyjna	`6.37ms` from Poznan, PL
23.91.74.3	AS46606 Unified Layer	`2.10ms` from Salt Lake City, US
222.236.235.83	AS9318 SK Broadband Co Ltd	`4.86ms` from Seoul, KR
216.145.106.179	AS25946 NetAccess Systems Inc	`1.55ms` from Toronto, CA
91.204.88.163	AS41930 InitZero Lukasz Wasikowski	`0.45ms` from Warsaw, PL
176.234.247.19	AS34984 Superonline Iletisim Hizmetleri A.S.	`10.80ms` from Ankara, TR
95.86.144.211	AS34876 smart systems	`1.16ms` from Baku, AZ
139.213.64.115	AS4837 CHINA UNICOM China169 Backbone	`4.57ms` from Changchun, CN
188.115.177.131	AS6876 TENET Scientific Production Enterprise LLC	`3.45ms` from Chisinau, MD
75.117.233.131	AS7029 Windstream Communications LLC	`7.28ms` from Dallas, US
154.95.201.51	AS134175 SH2206-AP	`0.72ms` from Hong Kong, HK
39.57.202.3	AS17557 Pakistan Telecommunication Company Limited	`0.96ms` from Karachi, PK
3.11.24.3	AS16509 Amazon.com, Inc.	`0.16ms` from London, GB
79.44.136.227	AS3269 Telecom Italia S.p.A.	`1.92ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -m11 219.225.142.193

traceroute to 219.225.142.193 (219.225.142.193): 11 hops max, 52 byte packets

1 [AS15169] 72.14.236.39 244.141 ms

2 [] 36.255.57.179 198.011 ms

3 *

4 *

5 [AS4538] 101.4.114.181 231.578 ms

6 *

7 *

8 [AS4538] 101.4.115.17 257.477 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Brussels, BE

On March 20th 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.

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