166.111.0.0/16
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | tsinghua.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | TSINGHUA-CN |
WHOIS Details
inetnum: 166.111.0.0 - 166.111.255.255 netname: TSINGHUA-CN descr: Tsinghua University country: CN org: ORG-CEAR1-AP admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE mnt-by: APNIC-HM mnt-lower: MAINT-TSINGHUA-CERNET mnt-routes: MAINT-TSINGHUA-CERNET mnt-irt: IRT-CERNET-AP last-modified: 2023-09-06T06:09:18Z 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: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: [email protected] was validated on 2025-08-15 mnt-by: MAINT-CERNET-AP last-modified: 2025-11-18T00:26:28Z source: APNIC organisation: ORG-CEAR1-AP org-name: China Education and Research Network (CERNET) country: CN address: FIT 3-220, address: Tsinghua University phone: +86-10-62785983 fax-no: +86-10-62785933 e-mail: [email protected] mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2018-09-13T12:56:34Z 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: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2025-08-15 abuse-mailbox: [email protected] 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: [email protected] remarks: [email protected] 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
Nearby Ranges
BGP prefixes that overlap with 166.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 166.91.0.0/16 | AS14072 | District of Columbia Public Schools | 65,536 |
| 166.122.0.0/16 | AS6360 | University of Hawaii | 65,536 |
| 166.90.0.0/16 | AS3257 | Level 3 Parent, LLC | 65,536 |
| 166.89.0.0/16 | AS13918 | City of Tucson | 65,536 |
| 166.100.0.0/16 | AS2687 | AT&T Japan K.K. | 65,536 |
| 166.82.0.0/16 | AS7029 | Windstream Communications LLC | 65,536 |
| 166.84.0.0/16 | AS2033 | Panix | 65,536 |
| 166.74.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 166.211.0.0/16 | AS22394 | Verizon Business | 65,536 |
| 166.102.0.0/16 | AS7029 | Windstream Communications LLC | 65,536 |
| 166.123.0.0/16 | AS13506 | United States Department of the Treasury | 65,536 |
| 166.72.0.0/16 | AS7018 | AT&T Enterprises, LLC | 65,536 |
| 166.238.0.0/16 | AS26611 | COMUNICACIÓN CELULAR S.A. COMCEL S.A. | 65,536 |
| 166.93.0.0/16 | AS26914 | Synoptek, LLC | 65,536 |
| 166.70.0.0/16 | AS6315 | XMission, L.C. | 65,536 |
| 166.92.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 166.99.0.0/16 | AS11719 | Eaton Corporation | 65,536 |
| 166.80.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 166.87.0.0/16 | AS5080 | Saudi Arabian Oil Company | 65,536 |
| 166.19.0.0/16 | AS33425 | CoreWeave, Inc | 65,536 |
| 166.69.0.0/16 | AS19773 | Motorola MNIC | 65,536 |
| 166.117.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 166.56.0.0/16 | AS3371 | Verizon Business | 65,536 |
| 166.91.0.0/16 | AS33084 | District of Columbia Public Schools | 65,536 |
| 166.211.0.0/16 | AS6167 | Verizon Business | 65,536 |
| 166.58.0.0/16 | AS3377 | Verizon Business | 65,536 |
| 166.90.0.0/16 | AS3356 | Level 3 Parent, LLC | 65,536 |
| 166.94.0.0/16 | AS3926 | Fairfax County Government | 65,536 |
| 166.20.0.0/16 | AS243 | L3Harris Technologies, Inc. | 65,536 |
| 166.58.0.0/16 | AS3372 | Verizon Business | 65,536 |
| 166.104.0.0/16 | AS9321 | Hanyang University | 65,536 |
| 166.58.0.0/16 | AS3371 | Verizon Business | 65,536 |
| 166.56.0.0/16 | AS3372 | Verizon Business | 65,536 |
| 166.48.0.0/17 | AS396338 | Altima Telecom | 32,768 |
| 166.62.128.0/17 | AS5769 | Videotron Ltee | 32,768 |
| 166.49.0.0/17 | AS3561 | CenturyLink Communications, LLC | 32,768 |
| 166.114.128.0/17 | AS6568 | EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA | 32,768 |
| 166.49.128.0/17 | AS5400 | communications networking services Private Unlimited Company | 32,768 |
| 166.108.128.0/18 | AS35077 | Netwo SAS | 16,384 |
| 166.114.64.0/18 | AS6568 | EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA | 16,384 |
| 166.113.64.0/18 | AS53449 | OEC Fiber | 16,384 |
| 166.113.32.0/19 | AS13370 | Ziply Fiber | 8,192 |
| 166.114.32.0/19 | AS6568 | EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA | 8,192 |
| 166.63.128.0/19 | AS3561 | CenturyLink Communications, LLC | 8,192 |
| 166.63.192.0/19 | AS1273 | Vodafone Americas | 8,192 |
| 166.113.0.0/19 | AS19870 | Cherry Creek School District #5 | 8,192 |
| 166.108.0.0/19 | AS16509 | Amazon.com, Inc. | 8,192 |
| 166.63.160.0/19 | AS1273 | Vodafone Americas | 8,192 |
| 166.114.16.0/20 | AS6568 | EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA | 4,096 |
Hosted domains
There are 91 domain names hosted across 67 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 166.111.111.128 | fineval.top | 2 |
| 166.111.89.112 | sunist.site | 2 |
| 166.111.124.168 | qhfz.cn | 1 |
| 166.111.80.237 | sense-lab.org | 1 |
| 166.111.17.117 | tiangou.space | 1 |
| 166.111.41.139 | bestchina.org | 1 |
| 166.111.38.97 | jincai.info | 1 |
| 166.111.105.26 | drhuyue.site | 1 |
| 166.111.247.154 | junhuai.fun | 1 |
| 166.111.188.124 | thu-psg.online | 1 |
| 166.111.224.90 | baobabbob.cn | 1 |
| 166.111.144.129 | diaopei.com | 1 |
| 166.111.100.96 | xn--jhqxa2d35c41a64moylppeh3bkvq404bdizavfd5tfi43l.cn | 1 |
| 166.111.174.98 | xwl514.me | 1 |
| 166.111.94.214 | tianmouc.com | 1 |
| 166.111.143.3 | electrolyteproject.com | 1 |
| 166.111.60.68 | tina.wiki | 1 |
| 166.111.236.142 | tsinghuaqna.cn | 1 |
| 166.111.7.164 | cbicr.org | 1 |
| 166.111.152.159 | shilab.org | 1 |
Hosted domains API
Pingable IPs
3,069 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 166.111.7.23 |
2.23ms from Beijing,
CN
|
|
| 166.111.118.49 |
2.57ms from Beijing,
CN
|
|
| 166.111.189.204 |
2.45ms from Beijing,
CN
|
|
| 166.111.111.1 |
2.40ms from Beijing,
CN
|
|
| 166.111.188.231 |
2.32ms from Beijing,
CN
|
|
| 166.111.82.58 |
2.43ms from Beijing,
CN
|
|
| 166.111.27.60 |
2.57ms from Beijing,
CN
|
|
| 166.111.243.80 |
3.10ms from Beijing,
CN
|
|
| 166.111.223.1 |
3.26ms from Beijing,
CN
|
|
| 166.111.157.118 |
2.49ms from Beijing,
CN
|
|
| 166.111.92.129 |
3.30ms from Beijing,
CN
|
|
| 166.111.36.1 |
2.19ms from Beijing,
CN
|
|
| 166.111.216.65 |
3.43ms from Beijing,
CN
|
|
| 166.111.56.1 |
3.95ms from Beijing,
CN
|
|
| 166.111.247.1 |
2.37ms from Beijing,
CN
|
|
| 166.111.89.61 |
2.24ms from Beijing,
CN
|
|
| 166.111.14.1 |
4.05ms from Beijing,
CN
|
|
| 166.111.100.75 |
2.17ms from Beijing,
CN
|
|
| 166.111.218.1 |
3.35ms from Beijing,
CN
|
|
| 166.111.127.28 |
2.60ms from Beijing,
CN
|
|
| 166.111.240.1 |
2.39ms from Beijing,
CN
|
|
| 166.111.29.129 |
3.72ms from Beijing,
CN
|
|
| 166.111.115.24 |
2.34ms from Beijing,
CN
|
|
| 166.111.53.163 |
2.10ms from Beijing,
CN
|
|
| 166.111.185.1 |
2.17ms 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 |
|---|---|---|
| 130.35.80.48 |
0.41ms from Ashburn,
US
|
|
| 160.178.165.160 |
8.33ms from Casablanca,
MA
|
|
| 86.15.34.48 |
12.51ms from London,
GB
|
|
| 90.218.140.240 |
2.43ms from London,
GB
|
|
| 128.34.80.16 |
1.83ms from Los Angeles,
US
|
|
| 105.172.87.224 |
1.34ms from Luanda,
AO
|
|
| 2.239.253.64 |
1.11ms from Milan,
IT
|
|
| 176.120.226.176 |
1.83ms from Moscow,
RU
|
|
| 104.136.35.48 |
6.57ms from Orlando,
US
|
|
| 123.134.89.192 |
6.09ms from Qingdao,
CN
|
|
| 5.98.210.0 |
14.76ms from Rome,
IT
|
|
| 108.200.140.0 |
3.34ms from San Jose,
US
|
|
| 120.136.92.0 |
5.10ms from Seoul,
KR
|
|
| 185.68.160.0 |
1.16ms from Amsterdam,
NL
|
|
| 166.203.80.224 |
2.11ms from Ashburn,
US
|
|
| 173.94.170.96 |
10.36ms from Charlotte,
US
|
|
| 51.89.162.176 |
0.10ms from Erith,
GB
|
|
| 95.40.138.80 |
0.11ms from Hong Kong,
HK
|
|
| 47.158.111.112 |
3.63ms from Los Angeles,
US
|
|
| 137.236.145.160 |
3.70ms from Newark,
US
|
|
| 97.97.21.48 |
5.41ms from Orlando,
US
|
|
| 210.249.111.128 |
1.81ms from Osaka,
JP
|
|
| 95.235.218.80 |
2.77ms from Rome,
IT
|
|
| 95.250.50.48 |
10.02ms from Rome,
IT
|
|
| 74.46.14.144 |
8.28ms from Secaucus,
US
|
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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