202.4.128.0/19

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain buct.edu.cn
ASN AS4538
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 2025-08-15
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

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

Nearby Ranges

BGP prefixes that overlap with 202.4.0.0/16

Range ASN Company Num of IPs
202.4.32.0/19 AS17993 Vodafone Samoa Limited 8,192
202.4.192.0/19 AS4760 Hong Kong Telecommunications (HKT) Limited 8,192
202.4.96.0/19 AS23956 Amber IT Limited 8,192
202.4.64.0/19 AS9443 VOCUS PTY LTD 8,192
202.4.192.0/19 AS9444 Hong Kong Telecommunications (HKT) Limited 8,192
202.4.224.0/20 AS55803 Hostopia Australia Web Pty Ltd 4,096
202.4.252.0/22 AS4808 Beijing Teletron Telecom Engineering Co., Ltd. 1,024
202.4.170.0/23 AS45726 PT Lion Mentari Airlines 512
202.4.160.0/23 AS18355 PT Kiwoom Sekuritas Indonesia 512
202.4.248.0/23 AS24291 MITSUI & CO., LTD. 512
202.4.250.0/24 AS23642 OBIS-IX,Internet Exchange Point,Okayama,Japan 256
202.4.47.0/24 AS23657 Bear System Range Allocation 256
202.4.182.0/24 AS38233 Gurudas Heritage, 3rd floor 256
202.4.189.0/24 AS38320 Yayasan Indonesia Memberi Solusi 256
202.4.181.0/24 AS1221 GPO Box 2142 256
202.4.251.0/24 AS45495 Interchange Limited 256
202.4.178.0/24 AS45526 Ugam Solutions Pvt Ltd 256
202.4.168.0/24 AS45901 Vietnam Export Import Commercial Joint stock Bank 256
202.4.176.0/24 AS45902 Hai Phong Securities Company 256
202.4.173.0/24 AS45925 Teletalk Bangladesh Ltd. 256
202.4.175.0/24 AS45937 Brisbane Airport Corporation 256
202.4.167.0/24 AS45939 Ground Floor, Bahria Complex II, 256
202.4.179.0/24 AS46017 Badan Informasi Geospasial 256
202.4.177.0/24 AS4755 SQS INDIA BFSI LIMITED 256
202.4.31.0/24 AS4764 G. P. STERN PTY LTD 256
202.4.191.0/24 AS55343 Conduent Business Services Philippines Inc. 256
202.4.186.0/24 AS63510 Syiah Kuala University (Unsyiah) 256
202.4.172.0/24 AS45154 Appnomic Systems 256
202.4.180.0/24 AS131265 TCS eServe Limited 256
202.4.188.0/24 AS131268 Sunshine Coast Regional Council 256
202.4.169.0/24 AS137085 Starnet Broaband Services private limited 256
202.4.183.0/24 AS17477 1144 NEPEAN HIGHWAY 256
202.4.190.0/24 AS17535 Ebix Australia Pty Ltd 256
202.4.42.0/24 AS17993 Bear System Samoa 256
202.4.43.0/24 AS17993 Bear System Range Allocation 256
202.4.46.0/24 AS17993 Bear System Range Allocation 256
202.4.52.0/24 AS17993 Ipasifika Samoa Ltd 256
202.4.53.0/24 AS17993 Ipasifika Samoa Ltd 256

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

Pingable IPs

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

IP Address ASN Details
202.4.130.134 AS4538 China Education and Research Network Center 5.01ms from Beijing, CN
202.4.128.209 AS4538 China Education and Research Network Center 3.04ms from Beijing, 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
20.119.115.19 AS8075 Microsoft Corporation 0.36ms from Ashburn, US
70.91.131.131 AS7922 Comcast Cable Communications, LLC 7.16ms from Boston, US
157.92.40.99 AS3449 Universidad Nacional de Buenos Aires 2.10ms from Buenos Aires, AR
67.240.158.3 AS11351 Charter Communications Inc 17.68ms from Chicago, US
23.61.34.195 AS16625 Akamai Technologies, Inc. 0.20ms from Chicago, US
149.75.164.195 AS6079 RCN 5.78ms from Chicago, US
34.66.124.99 AS396982 Google LLC 0.11ms from Council Bluffs, US
164.64.18.227 AS14235 State of New Mexico 18.79ms from Dallas, US
73.181.92.227 AS7922 Comcast Cable Communications, LLC 2.33ms from Denver, US
39.154.72.163 AS9808 China Mobile Communications Group Co., Ltd. 8.45ms from Hohhot, CN
103.155.122.3 AS141159 Incomparable(HK)Network Co., Limited 0.34ms from Hong Kong, HK
129.227.136.211 AS21859 Zenlayer Inc 0.50ms from Hong Kong, HK
31.39.167.211 AS5410 Bouygues Telecom SA 1.92ms from Paris, FR
20.214.170.19 AS8075 Microsoft Corporation 0.39ms from Seoul, KR
193.47.155.3 AS16364 Sony DADC Europe GmbH 0.35ms from Vienna, AT
79.191.137.51 AS5617 Orange Polska Spolka Akcyjna 4.48ms from Warsaw, PL
125.25.86.147 AS23969 TOT Public Company Limited 6.00ms from Bangkok, TH
114.252.253.99 AS4808 China Unicom Beijing Province Network 3.57ms from Beijing, CN
34.249.190.115 AS16509 Amazon.com, Inc. 0.20ms from Dublin, IE
69.170.170.19 AS32035 Sangoma US Inc. 4.55ms from Los Angeles, US
88.7.190.163 AS3352 TELEFONICA DE ESPANA S.A.U. 5.92ms from Madrid, ES
160.153.82.3 AS26496 GoDaddy.com, LLC 1.02ms from Phoenix, US
98.158.2.195 AS54858 Wave Broadband 0.90ms from Portland, US
119.181.202.131 AS4837 CHINA UNICOM China169 Backbone 5.14ms from Qingdao, CN
112.243.230.243 AS4837 CHINA UNICOM China169 Backbone 3.89ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -f6 -m18 202.4.159.182
traceroute to 202.4.159.182 (202.4.159.182): 18 hops max, 52 byte packets
6 [AS174] 154.54.87.249 46.133 ms
7 [AS174] 154.54.94.113 181.962 ms
8 [AS174] 154.54.88.218 189.642 ms
9 [AS174] 154.18.9.170 181.923 ms
10 *
11 [AS174] 38.150.75.1 209.764 ms
12 [AS4538] 101.4.114.181 210.125 ms
13 *
14 *
15 [AS4538] 101.4.116.94 210.936 ms
16 *
17 *
18 *
Measurement taken from IPinfo ProbeNet in Honolulu, US
On

What are IP address ranges?

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