202.4.136.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain buct.edu.cn
ASN AS4538
Parent Range 202.4.128.0/20
Registry APNIC
ID BUCT-CN

WHOIS Details

inetnum:        202.4.128.0 - 202.4.159.255
netname:        BUCT-CN
descr:          Beijing University of Chemical Technology
descr:          P. O. Box 70
descr:          100029 Heping Street
descr:          Beijing
country:        CN
admin-c:        XD36-AP
tech-c:         YW213-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:15:59Z
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

person:         Xiaoguo Dong
address:        Network Center
address:        Beijing University of Chemistry Technology
address:        Beijing, Beijing 100029, China
country:        CN
nic-hdl:        XD36-AP
e-mail:         dongxg@mail.buct.edu.cn
phone:          +86-10-6443-4922
fax-no:         +86-10-6441-4105
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:21:15Z
source:         APNIC

person:         Yanqing Wang
address:        Network Center
address:        Beijing University of Chemistry Technology
address:        Beijing, Beijing 100029, China
country:        CN
nic-hdl:        YW213-AP
e-mail:         dongxg@mail.buct.edu.cn
phone:          +86-10-6443-4922
fax-no:         +86-10-6441-4105
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:21:15Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 202.4.136.0/24

Range ASN Company Num of IPs
202.4.128.0/20 AS4538 Beijing University of Chemical Technology 4,096
202.4.128.0/19 AS4538 Beijing University of Chemical Technology 8,192

Nearby Ranges

BGP prefixes that overlap with 202.4.0.0/16

Range ASN Company Num of IPs
202.4.64.0/19 AS9443 VOCUS PTY LTD 8,192
202.4.192.0/19 AS9444 Hong Kong Telecommunications (HKT) Limited 8,192
202.4.96.0/19 AS23956 DhakaCom Limited 8,192
202.4.128.0/19 AS4538 Beijing University of Chemical Technology 8,192
202.4.32.0/19 AS17993 Vodafone Samoa Limited 8,192
202.4.224.0/20 AS55803 Hostopia Australia Web Pty Ltd 4,096
202.4.144.0/20 AS4538 Beijing University of Chemical Technology 4,096
202.4.128.0/20 AS4538 Beijing University of Chemical Technology 4,096
202.4.0.0/21 AS7306 Asian Development Bank 2,048
202.4.0.0/22 AS7306 Asian Development Bank 1,024
202.4.4.0/22 AS7306 Asian Development Bank 1,024
202.4.252.0/22 AS4808 Beijing Teletron Telecom Engineering Co., Ltd. 1,024
202.4.10.0/23 AS7306 Asian Development Bank 512
202.4.202.0/23 AS9444 Hong Kong Telecommunications (HKT) Limited 512
202.4.216.0/23 AS9444 Hong Kong Telecommunications (HKT) Limited 512
202.4.160.0/23 AS18355 PT Kiwoom Sekuritas Indonesia 512
202.4.248.0/23 AS24291 MITSUI & CO., LTD. 512
202.4.8.0/23 AS7306 Asian Development Bank 512
202.4.204.0/23 AS9444 Hong Kong Telecommunications (HKT) Limited 512
202.4.218.0/23 AS9444 Hong Kong Telecommunications (HKT) Limited 512
202.4.37.0/24 AS17993 Vodafone Samoa Limited 256
202.4.179.0/24 AS46017 Badan Informasi Geospasial 256
202.4.166.0/24 AS55326 22 Delhi Street 256
202.4.175.0/24 AS45937 Brisbane Airport Corporation 256
202.4.51.0/24 AS17993 Vodafone Samoa Limited 256
202.4.47.0/24 AS23657 Bear System Range Allocation 256
202.4.103.0/24 AS23956 DhakaCom Limited 256
202.4.110.0/24 AS23956 DhakaCom Limited 256
202.4.33.0/24 AS17993 Vodafone Samoa Limited 256
202.4.106.0/24 AS23956 DhakaCom Limited 256
202.4.48.0/24 AS17993 Vodafone Samoa Limited 256
202.4.191.0/24 AS55343 Conduent Business Services Philippines Inc. 256
202.4.251.0/24 AS45495 Interchange Limited 256
202.4.98.0/24 AS23956 DhakaCom Limited 256
202.4.57.0/24 AS17993 Vodafone Samoa Limited 256
202.4.41.0/24 AS17993 Vodafone Samoa Limited 256
202.4.100.0/24 AS23956 DhakaCom Limited 256
202.4.127.0/24 AS23956 DhakaCom Limited 256
202.4.38.0/24 AS17993 Vodafone Samoa Limited 256
202.4.112.0/24 AS23956 DhakaCom Limited 256
202.4.115.0/24 AS23956 DhakaCom Limited 256
202.4.108.0/24 AS23956 DhakaCom Limited 256
202.4.56.0/24 AS17993 Vodafone Samoa Limited 256
202.4.196.0/24 AS9444 Hong Kong Telecommunications (HKT) Limited 256
202.4.61.0/24 AS17993 Vodafone Samoa Limited 256
202.4.46.0/24 AS23657 Bear System Range Allocation 256
202.4.173.0/24 AS45925 Teletalk Bangladesh Ltd. 256
202.4.114.0/24 AS23956 DhakaCom Limited 256
202.4.101.0/24 AS23956 DhakaCom Limited 256
202.4.168.0/24 AS45901 Vietnam Export Import Commercial Joint stock Bank 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
84.84.91.152 AS1136 KPN B.V. 1.06ms from Amsterdam, NL
144.178.78.136 AS39686 Eurofiber Nederland BV 1.27ms from Amsterdam, NL
73.19.244.200 AS7922 Comcast Cable Communications, LLC 19.62ms from Atlanta, US
52.172.145.72 AS8075 Microsoft Corporation 0.13ms from Lohogaon, IN
18.133.32.248 AS16509 Amazon.com, Inc. 0.68ms from London, GB
117.45.121.248 AS4134 CHINANET-BACKBONE 7.38ms from Nanchang, CN
153.99.9.200 AS4837 CHINA UNICOM China169 Backbone 8.49ms from Nanjing, CN
171.109.145.136 AS134419 Beihai 3.62ms from Nanning, CN
213.229.233.216 AS5603 Telekom Slovenije, d.d. 10.65ms from Ljubljana, SI
61.80.201.104 AS4766 Korea Telecom 4.91ms from Seoul, KR
196.184.6.120 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 12.81ms from Tunis, TN
222.75.68.56 AS4134 CHINANET-BACKBONE 3.33ms from Zhongwei, CN
188.61.157.120 AS3303 Swisscom (Switzerland) Ltd 0.72ms from Lausanne, CH
76.140.82.168 AS7922 Comcast Cable Communications, LLC 7.78ms from Salt Lake City, US
169.47.97.88 AS36351 IBM Cloud 0.87ms from Dallas, US
36.79.185.136 AS7713 PT Telekomunikasi Indonesia 4.07ms from Jakarta, ID
13.234.255.104 AS16509 Amazon.com, Inc. 0.14ms from Mumbai, IN
180.44.47.120 AS4713 NTT Communications Corporation 3.97ms from Osaka, JP
115.131.193.152 AS7545 TPG Telecom Limited 1.39ms from Perth, AU
201.26.79.40 AS27699 TELEFÔNICA BRASIL S.A 2.08ms from Sao Paulo, BR
151.115.110.200 AS12876 SCALEWAY S.A.S. 0.76ms from Warsaw, PL
156.228.104.88 AS200373 3xK Tech GmbH 0.13ms from Ashburn, US
46.105.200.200 AS16276 OVH SAS 0.07ms from Beauharnois, CA
3.249.56.168 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
187.195.100.104 AS8151 UNINET 8.53ms from Guadalajara, MX

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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