121.194.92.0/22

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	121.194.0.0/15
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        121.194.0.0 - 121.195.255.255
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:  2020-09-03T09:16:22Z
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:         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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
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:         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

route:          121.195.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.194.92.0/22

Range	ASN	Company	Num of IPs
121.194.0.0/15	AS4538	China Education and Research Network	131,072
121.192.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 121.194.0.0/16

Range	ASN	Company	Num of IPs
121.192.0.0/14	AS4538	China Education and Research Network	262,144
121.194.0.0/15	AS4538	China Education and Research Network	131,072
121.194.224.0/19	AS4538	China Education and Research Network	8,192
121.194.192.0/19	AS4538	China Education and Research Network	8,192
121.194.0.0/20	AS4538	China Education and Research Network	4,096
121.194.16.0/20	AS4538	China Education and Research Network	4,096
121.194.64.0/20	AS4538	China Education and Research Network	4,096
121.194.96.0/20	AS4538	China Education and Research Network	4,096
121.194.32.0/20	AS4538	China Education and Research Network	4,096
121.194.112.0/20	AS4538	China Education and Research Network	4,096
121.194.176.0/20	AS4538	China Education and Research Network	4,096
121.194.144.0/20	AS4538	China Education and Research Network	4,096
121.194.48.0/20	AS4538	China Education and Research Network	4,096
121.194.80.0/21	AS4538	China Education and Research Network	2,048
121.194.88.0/22	AS4538	China Education and Research Network	1,024
121.194.172.0/22	AS4538	China Education and Research Network	1,024
121.194.174.0/23	AS4538	China Education and Research Network	512
121.194.172.0/23	AS4538	China Education and Research Network	512
121.194.167.0/24	AS4538	China Education and Research Network	256
121.194.4.0/24	AS4538	China Education and Research Network	256
121.194.4.0/24	AS133111	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
45.154.247.198	AS60781 LeaseWeb Netherlands B.V.	0.30ms from Amsterdam, NL
173.236.139.246	AS26347 New Dream Network, LLC	0.30ms from Ashburn, US
83.71.190.70	AS5466 Eircom Limited	1.15ms from Dublin, IE
87.182.20.230	AS3320 Deutsche Telekom AG	4.61ms from Frankfurt am Main, DE
66.91.158.214	AS20001 Charter Communications Inc	2.29ms from Honolulu, US
175.162.82.70	AS4837 CHINA UNICOM China169 Backbone	9.29ms from Liaoyang, CN
20.192.169.198	AS8075 Microsoft Corporation	0.14ms from Lohogaon, IN
94.14.136.70	AS5607 Sky UK Limited	11.24ms from London, GB
85.233.68.38	AS34887 Information Technology Center of the Republic of Tatarstan GUP	12.14ms from Moscow, RU
114.98.99.198	AS4134 CHINANET-BACKBONE	10.54ms from Nanchang, CN
210.169.116.54	AS2516 KDDI CORPORATION	3.85ms from Osaka, JP
191.57.65.246	AS4230 CLARO S.A.	16.28ms from Osasco, BR
193.177.188.6	AS58340 Napapiirin Kuituverkot Oy	3.50ms from Oulu, FI
194.250.221.214	AS3215 Orange S.A.	3.27ms from Paris, FR
34.231.181.198	AS14618 Amazon.com, Inc.	0.20ms from Reston, US
190.106.11.22	AS19447 ALFANUMERIC	7.64ms from San Pedro, CR
73.169.227.230	AS7922 Comcast Cable Communications, LLC	4.12ms from Seattle, US
1.242.249.22	AS9318 SK Broadband Co Ltd	1.66ms from Seoul, KR
89.207.127.6	AS41437 KNAPP AG	3.94ms from Vienna, AT
96.33.215.230	AS20115 Charter Communications LLC	14.68ms from Atlanta, US
101.109.33.6	AS23969 TOT Public Company Limited	2.00ms from Bangkok, TH
196.127.169.22	AS36925 MEDITELECOM	2.98ms from Casablanca, MA
34.59.73.38	AS396982 Google LLC	0.12ms from Council Bluffs, US
223.18.202.166	AS9304 HGC Global Communications Limited	1.41ms from Hong Kong, HK
50.192.144.118	AS7922 Comcast Cable Communications, LLC	5.36ms from Miami, US

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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