125.219.0.0/19

AS4538 · China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        125.219.0.0 - 125.219.255.255
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:  2020-09-03T09:16:21Z
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:         [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:          125.219.0.0/16
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 125.219.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
84.152.182.195	AS3320 Deutsche Telekom AG	`4.41ms` from Berlin, DE
142.204.157.195	AS393238 ImOn Communications, LLC	`10.23ms` from Chicago, US
87.58.177.211	AS3292 TDC Holding A/S	`2.29ms` from Copenhagen, DK
109.180.200.179	AS2856 British Telecommunications PLC	`5.64ms` from Erith, GB
37.219.58.179	AS16086 DNA Oyj	`7.97ms` from Helsinki, FI
24.164.12.243	AS33363 Charter Communications, Inc	`8.66ms` from Orlando, US
51.84.83.115	AS16509 Amazon.com, Inc.	`1.80ms` from Tel Aviv, IL
76.64.45.163	AS577 Bell Canada	`1.23ms` from Toronto, CA
112.48.119.19	AS9808 China Mobile Communications Group Co., Ltd.	`3.25ms` from Xiamen, CN
2.50.51.115	AS5384 Emirates Internet	`3.85ms` from Al Fujairah City, AE
92.207.135.19	AS31655 Gamma Telecom Holdings Ltd	`4.25ms` from London, GB
89.95.102.147	AS5410 Bouygues Telecom SA	`11.01ms` from Marseille, FR
178.35.141.99	AS12389 PJSC Rostelecom	`18.89ms` from Moscow, RU
62.76.24.131	AS61400 Start2 LLC	`0.83ms` from Moscow, RU
71.183.152.67	AS701 Verizon Business	`2.27ms` from New York City, US
81.28.19.35	AS702 Verizon Business	`6.86ms` from Prague, CZ
136.118.38.51	AS396982 Google LLC	`0.15ms` from The Dalles, US
126.40.53.179	AS17676 SoftBank Corp.	`2.57ms` from Tokyo, JP
27.92.1.3	AS2516 KDDI CORPORATION	`1.41ms` from Tokyo, JP
223.218.110.227	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.13ms` from Tokyo, JP
188.21.6.3	AS199437 Verband der Versicherungsunternehmen Oesterreichs	`1.80ms` from Vienna, AT
136.226.85.131	AS22616 ZSCALER, INC.	`0.19ms` from Chicago, US
73.36.32.147	AS7922 Comcast Cable Communications, LLC	`6.13ms` from Chicago, US
68.148.134.83	AS6327 Shaw Communications	`6.07ms` from Edmonton, CA
113.238.122.195	AS4837 CHINA UNICOM China169 Backbone	`12.38ms` from Liaoyang, CN

Traceroute

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

traceroute -a -n -q1 -f14 -m19 125.219.14.240

traceroute to 125.219.14.240 (125.219.14.240): 19 hops max, 52 byte packets

14 [AS9808] 221.183.151.254 23.893 ms

15 *

16 [AS4538] 210.43.145.86 24.339 ms

17 *

18 *

19 *

Measurement taken from

IPinfo ProbeNet in Suzhou, CN

On December 20th 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.

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