202.113.224.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.113.0.0/16
Registry	APNIC
ID	BJR-CERNET

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
154.247.241.212	AS36947 Telecom Algeria	16.16ms from Algiers, DZ
185.76.19.4	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	0.97ms from Amsterdam, NL
5.204.98.52	AS213155 Yettel Hungary Ltd.	12.03ms from Budapest, HU
181.6.200.52	AS7303 Telecom Argentina S.A.	1.08ms from Buenos Aires, AR
3.232.95.244	AS14618 Amazon.com, Inc.	0.19ms from Reston, US
34.121.216.68	AS396982 Google LLC	0.12ms from Council Bluffs, US
24.49.219.52	AS11976 Fidelity Communication International Inc.	8.98ms from Dallas, US
103.77.160.84	AS45544 SUPERDATA-VN	1.32ms from Ho Chi Minh City, VN
150.31.64.164	AS2497 Internet Initiative Japan Inc.	1.46ms from Osaka, JP
119.222.206.132	AS4766 Korea Telecom	4.63ms from Seoul, KR
81.7.106.180	AS43811 Telia Lietuva, AB	1.29ms from Vilnius, LT
89.97.5.68	AS12874 Fastweb SpA	1.87ms from Milan, IT
200.135.0.4	AS10715 Universidade Federal de Santa Catarina	10.18ms from Osasco, BR
59.19.232.244	AS4766 Korea Telecom	6.26ms from Seoul, KR
183.189.170.212	AS4837 CHINA UNICOM China169 Backbone	7.31ms from Taiyuan, CN
98.25.136.180	AS11426 Charter Communications Inc	13.37ms from Atlanta, US
181.69.165.244	AS27831 Colombia Móvil	1.69ms from Bogota, CO
51.8.188.132	AS8075 Microsoft Corporation	0.95ms from Boydton, US
73.170.166.180	AS7922 Comcast Cable Communications, LLC	6.05ms from Fremont, US
134.199.7.164	AS23089 Hotwire Communications	8.35ms from Miami, US
74.210.171.244	AS11290 Cogeco Connexion inc	9.29ms from Montreal, CA
191.55.186.212	AS53006 ALGAR TELECOM S/A	6.34ms from Osasco, BR
85.166.32.36	AS2119 Telenor Norge AS	5.67ms from Oslo, NO
188.239.42.100	AS136907 HUAWEI CLOUDS	0.75ms from Singapore, SG
182.93.126.148	AS17514 Otsuka Corp.	3.60ms from Tokyo, JP

WHOIS Details

inetnum:        202.112.0.0 - 202.113.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
org:            ORG-CEAR1-AP
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-05-28T02:35:51Z
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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
source:         APNIC

organisation:   ORG-CEAR1-AP
org-name:       China Education and Research Network (CERNET)
country:        CN
address:        FIT 3-220,
address:        Tsinghua University
phone:          +86-10-62785983
fax-no:         +86-10-62785933
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2018-09-13T12:56:34Z
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 2025-01-22
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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

Overlapping Ranges

BGP prefixes that contain 202.113.224.0/20

Range	ASN	Company	Num of IPs
202.113.0.0/16	AS4538	China Education and Research Network	65,536
202.113.0.0/16	AS24352	China Education and Research Network	65,536
202.112.0.0/15	AS4538	China Education and Research Network	131,072
202.112.0.0/14	AS4538	China Education and Research Network	262,144
202.112.0.0/13	AS4538	China Education and Research Network	524,288

BGP prefixes that are contained by 202.113.224.0/20

Range	ASN	Company	Num of IPs
202.113.225.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.113.0.0/16

Range	ASN	Company	Num of IPs
202.112.0.0/13	AS4538	China Education and Research Network	524,288
202.112.0.0/14	AS4538	China Education and Research Network	262,144
202.112.0.0/15	AS4538	China Education and Research Network	131,072
202.113.0.0/16	AS4538	China Education and Research Network	65,536
202.113.0.0/16	AS24352	China Education and Research Network	65,536
202.113.128.0/20	AS4538	China Education and Research Network	4,096
202.113.112.0/20	AS4538	China Education and Research Network	4,096
202.113.144.0/20	AS4538	China Education and Research Network	4,096
202.113.64.0/20	AS4538	China Education and Research Network	4,096
202.113.96.0/20	AS4538	China Education and Research Network	4,096
202.113.48.0/20	AS4538	China Education and Research Network	4,096
202.113.32.0/20	AS4538	China Education and Research Network	4,096
202.113.176.0/20	AS4538	China Education and Research Network	4,096
202.113.16.0/20	AS4538	China Education and Research Network	4,096
202.113.0.0/20	AS4538	China Education and Research Network	4,096
202.113.88.0/21	AS4538	China Education and Research Network	2,048
202.113.208.0/21	AS4538	China Education and Research Network	2,048
202.113.168.0/21	AS4538	China Education and Research Network	2,048
202.113.80.0/21	AS4538	China Education and Research Network	2,048
202.113.216.0/21	AS4538	China Education and Research Network	2,048
202.113.160.0/22	AS4538	China Education and Research Network	1,024
202.113.244.0/22	AS4538	China Education and Research Network	1,024
202.113.225.0/24	AS4538	China Education and Research Network	256
202.113.64.0/24	AS4538	China Education and Research Network	256
202.113.56.0/24	AS4538	China Education and Research Network	256
202.113.51.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

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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.

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