219.244.80.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.244.0.0/14
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.244.0.0 - 219.247.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Xi'an 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:  2020-10-20T00:56:45Z
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

Overlapping Ranges

BGP prefixes that contain 219.244.80.0/20

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 219.244.0.0/16

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144

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

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

IP Address	ASN	Details
219.244.81.17	AS4538 China Education and Research Network Center	`14.18ms` from Chengdu, 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
108.20.240.100	AS701 Verizon Business	`5.34ms` from Boston, US
117.216.123.52	AS9829 National Internet Backbone	`10.36ms` from Chennai, IN
14.189.172.228	AS45899 VNPT Corp	`2.09ms` from Hanoi, VN
125.59.206.228	AS9908 HK Cable TV Ltd	`1.45ms` from Hong Kong, HK
46.122.16.164	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`13.90ms` from Ljubljana, SI
146.198.7.132	AS6871 Plusnet	`2.00ms` from London, GB
93.85.77.228	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`6.22ms` from Minsk, BY
52.90.70.196	AS14618 Amazon.com, Inc.	`0.41ms` from Reston, US
175.127.100.116	AS9318 SK Broadband Co Ltd	`2.73ms` from Seoul, KR
54.253.161.100	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
90.184.13.196	AS203953 Hiper A/S	`1.26ms` from Copenhagen, DK
62.225.33.148	AS3320 Deutsche Telekom AG	`1.64ms` from Duesseldorf, DE
172.118.184.84	AS20001 Charter Communications Inc	`6.09ms` from Los Angeles, US
75.222.5.116	AS6167 Verizon Business	`11.40ms` from Los Angeles, US
87.222.135.244	AS12479 Orange Espagne SA	`4.77ms` from Madrid, ES
88.4.95.116	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.02ms` from Madrid, ES
63.254.159.132	AS17378 TierPoint, LLC	`3.10ms` from New York City, US
73.193.142.20	AS7922 Comcast Cable Communications, LLC	`6.66ms` from New York City, US
18.232.28.180	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
84.211.184.244	AS25400 Telia Norge AS	`10.96ms` from Sandefjord, NO
189.230.212.212	AS8151 UNINET	`15.06ms` from Santiago de Queretaro, MX
1.105.51.36	AS4766 Korea Telecom	`1.88ms` from Seoul, KR
139.162.45.212	AS63949 Akamai Connected Cloud	`0.13ms` from Singapore, SG
125.30.52.196	AS2497 Internet Initiative Japan Inc.	`3.16ms` from Tokyo, JP
89.72.237.100	AS9141 P4 Sp. z o.o.	`13.35ms` from Warsaw, PL

Traceroute

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

traceroute -a -n -q1 -f6 -m14 219.244.91.145

traceroute to 219.244.91.145 (219.244.91.145): 14 hops max, 52 byte packets

6 [AS174] 38.150.75.1 57.958 ms

7 [AS4538] 101.4.114.181 102.73 ms

8 *

9 [AS4538] 101.4.117.81 98.86 ms

10 *

11 [AS4538] 101.4.112.14 111.482 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Ho Chi Minh City, VN

On November 22nd 2025

What are IP address ranges?

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