202.4.128.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | buct.edu.cn |
| ASN | AS4538 |
| Parent Range | 202.4.128.0/19 |
| 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
Overlapping Ranges
BGP prefixes that contain 202.4.128.0/20
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 202.4.32.0/19 | 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 |
| 202.4.128.0/19 | AS4538 | Beijing University of Chemical Technology | 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
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 |
5.01ms from Beijing,
CN
|
|
| 202.4.128.209 |
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 |
|---|---|---|
| 188.226.136.4 |
0.18ms from Amsterdam,
NL
|
|
| 9.163.137.180 |
0.27ms from Amsterdam,
NL
|
|
| 208.196.103.212 |
0.50ms from Ashburn,
US
|
|
| 75.90.51.68 |
13.18ms from Atlanta,
US
|
|
| 73.227.35.164 |
8.58ms from Boston,
US
|
|
| 181.102.241.100 |
11.93ms from Buenos Aires,
AR
|
|
| 61.2.161.100 |
8.57ms from Chennai,
IN
|
|
| 81.246.24.68 |
4.12ms from Gravelines,
FR
|
|
| 193.167.177.52 |
0.68ms from Helsinki,
FI
|
|
| 98.39.154.68 |
7.91ms from Houston,
US
|
|
| 221.203.15.180 |
4.93ms from Liaoyang,
CN
|
|
| 86.166.207.20 |
1.81ms from London,
GB
|
|
| 20.90.234.100 |
0.20ms from London,
GB
|
|
| 213.78.53.180 |
2.51ms from Manchester,
GB
|
|
| 24.159.231.20 |
19.12ms from Minneapolis,
US
|
|
| 208.217.1.68 |
2.85ms from Secaucus,
US
|
|
| 58.76.91.4 |
3.61ms from Seoul,
KR
|
|
| 211.211.241.196 |
3.66ms from Seoul,
KR
|
|
| 118.87.193.36 |
12.30ms from Tokyo,
JP
|
|
| 91.146.29.228 |
7.63ms from Yekaterinburg,
RU
|
|
| 177.250.44.68 |
7.39ms from Asuncion,
PY
|
|
| 73.7.27.132 |
3.84ms from Atlanta,
US
|
|
| 76.118.3.132 |
8.67ms from Boston,
US
|
|
| 149.106.197.132 |
0.21ms from Dallas,
US
|
|
| 121.40.70.68 |
2.19ms from Hangzhou,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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