222.28.128.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	222.28.0.0/14
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        222.28.0.0 - 222.31.255.255
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:23Z
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

Overlapping Ranges

BGP prefixes that contain 222.28.128.0/20

Range	ASN	Company	Num of IPs
222.28.0.0/14	AS4538	China Education and Research Network	262,144
222.24.0.0/13	AS4538	China Education and Research Network	524,288
222.16.0.0/12	AS4538	China Education and Research Network	1,048,576

Nearby Ranges

BGP prefixes that overlap with 222.28.0.0/16

Range	ASN	Company	Num of IPs
222.16.0.0/12	AS4538	China Education and Research Network	1,048,576
222.24.0.0/13	AS4538	China Education and Research Network	524,288
222.28.0.0/14	AS4538	China Education and Research Network	262,144
222.28.32.0/19	AS4538	China Education and Research Network	8,192
222.28.160.0/19	AS4538	China Education and Research Network	8,192
222.28.240.0/20	AS4538	China Education and Research Network	4,096
222.28.0.0/20	AS4538	China Education and Research Network	4,096
222.28.96.0/20	AS4538	China Education and Research Network	4,096
222.28.224.0/20	AS4538	China Education and Research Network	4,096
222.28.112.0/20	AS4538	China Education and Research Network	4,096
222.28.80.0/20	AS4538	China Education and Research Network	4,096
222.28.64.0/20	AS4538	China Education and Research Network	4,096
222.28.16.0/21	AS4538	China Education and Research Network	2,048
222.28.94.0/23	AS4538	China Education and Research Network	512
222.28.209.0/24	AS4538	China Education and Research Network	256
222.28.215.0/24	AS4538	China Education and Research Network	256
222.28.216.0/24	AS4538	China Education and Research Network	256
222.28.207.0/24	AS4538	China Education and Research Network	256
222.28.213.0/24	AS4538	China Education and Research Network	256
222.28.208.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
178.231.181.148	AS31615 Odido Netherlands B.V.	16.77ms from Amsterdam, NL
54.191.166.212	AS16509 Amazon.com, Inc.	0.14ms from Boardman, US
34.250.196.228	AS16509 Amazon.com, Inc.	0.18ms from Dublin, IE
202.181.234.196	AS7540 HongKong Commercial Internet Exchange	0.23ms from Hong Kong, HK
170.248.39.116	AS3573 Accenture LLP	9.54ms from Hopkinsville, US
98.7.210.68	AS12271 Charter Communications Inc	3.59ms from New York City, US
149.91.3.20	AS174 Cogent Communications	0.66ms from Paris, FR
34.200.223.116	AS14618 Amazon.com, Inc.	0.16ms from Reston, US
86.42.221.84	AS5466 Eircom Limited	3.43ms from Dublin, IE
149.224.134.196	AS15943 wilhelm.tel GmbH	0.47ms from Hamburg, DE
118.178.128.84	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	4.07ms from Hangzhou, CN
90.199.33.196	AS5607 Sky UK Limited	4.90ms from London, GB
202.54.207.180	AS4755 TATA Communications formerly VSNL is Leading ISP	0.61ms from Mumbai, IN
125.105.142.116	AS4134 CHINANET-BACKBONE	9.05ms from Nanchang, CN
47.105.36.100	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	0.10ms from Qingdao, CN
113.142.188.100	AS134768 CHINANET SHAANXI province Cloud Base network	2.26ms from Xi'an, CN
124.122.115.132	AS17552 True Online	2.49ms from Bangkok, TH
43.143.225.212	AS45090 Shenzhen Tencent Computer Systems Company Limited	1.77ms from Beijing, CN
3.138.133.84	AS16509 Amazon.com, Inc.	0.19ms from Columbus, US
178.95.36.164	AS9304 HGC Global Communications Limited	1.57ms from Hong Kong, HK
189.161.135.68	AS8151 UNINET	8.57ms from Santiago de Queretaro, MX
185.178.75.180	AS42366 TerraTransit AG	7.50ms from Zuerich, CH
27.44.44.68	AS17816 China Unicom IP network China169 Guangdong province	4.75ms from Guangzhou, CN
41.189.68.180	AS37179 Africa Independent Network Exchange (Pty) LTD (AfricaINX)	0.68ms from Johannesburg, ZA
158.197.74.84	AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	5.62ms from Bratislava, SK

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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