166.111.0.0/18
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | tsinghua.edu.cn |
| ASN | AS4538 |
| Parent Range | 166.111.0.0/16 |
| 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
Overlapping Ranges
BGP prefixes that contain 166.111.0.0/18
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 166.111.0.0/16 | AS4538 | Tsinghua University | 65,536 |
Nearby Ranges
BGP prefixes that overlap with 166.111.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 166.111.0.0/16 | AS4538 | Tsinghua University | 65,536 |
Hosted domains
There are 28 domain names hosted across 20 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 166.111.41.139 | bestchina.org | 1 |
| 166.111.8.30 | dns5.edu.cn | 1 |
| 166.111.4.39 | tsinghuadigit.com | 1 |
| 166.111.57.57 | letstestthis.xyz | 1 |
Hosted domains API
Pingable IPs
1,002 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 166.111.34.223 |
2.46ms from Beijing,
CN
|
|
| 166.111.3.254 |
2.32ms from Beijing,
CN
|
|
| 166.111.58.156 |
2.70ms from Beijing,
CN
|
|
| 166.111.44.37 |
2.72ms from Beijing,
CN
|
|
| 166.111.35.134 |
2.25ms from Beijing,
CN
|
|
| 166.111.7.62 |
1.99ms from Beijing,
CN
|
|
| 166.111.29.129 |
3.55ms from Beijing,
CN
|
|
| 166.111.59.161 |
2.34ms from Beijing,
CN
|
|
| 166.111.63.30 |
2.21ms from Beijing,
CN
|
|
| 166.111.57.1 |
2.46ms from Beijing,
CN
|
|
| 166.111.5.231 |
2.26ms from Beijing,
CN
|
|
| 166.111.30.5 |
2.55ms from Beijing,
CN
|
|
| 166.111.61.63 |
2.18ms from Beijing,
CN
|
|
| 166.111.25.93 |
2.51ms from Beijing,
CN
|
|
| 166.111.4.19 |
2.55ms from Beijing,
CN
|
|
| 166.111.15.84 |
2.25ms from Beijing,
CN
|
|
| 166.111.51.9 |
2.42ms from Beijing,
CN
|
|
| 166.111.11.1 |
4.42ms from Tianjin,
CN
|
|
| 166.111.32.106 |
2.35ms from Beijing,
CN
|
|
| 166.111.50.29 |
2.19ms from Beijing,
CN
|
|
| 166.111.41.37 |
2.41ms from Beijing,
CN
|
|
| 166.111.56.1 |
4.05ms from Beijing,
CN
|
|
| 166.111.36.66 |
2.32ms from Beijing,
CN
|
|
| 166.111.2.1 |
2.45ms from Beijing,
CN
|
|
| 166.111.16.225 |
2.38ms 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 |
|---|---|---|
| 204.217.191.98 |
0.19ms from Ashburn,
US
|
|
| 12.247.71.210 |
15.19ms from Atlanta,
US
|
|
| 199.189.195.162 |
1.43ms from Boca Raton,
US
|
|
| 108.203.153.66 |
7.79ms from Dallas,
US
|
|
| 154.222.47.82 |
0.17ms from Frankfurt am Main,
DE
|
|
| 145.223.84.18 |
0.34ms from Frankfurt am Main,
DE
|
|
| 217.6.130.2 |
2.92ms from Hamburg,
DE
|
|
| 192.146.190.2 |
2.24ms from Houston,
US
|
|
| 175.110.197.178 |
2.81ms from Jeddah,
SA
|
|
| 196.36.151.82 |
1.18ms from Johannesburg,
ZA
|
|
| 62.252.194.242 |
1.34ms from London,
GB
|
|
| 31.97.162.210 |
0.41ms from Osasco,
BR
|
|
| 46.152.230.82 |
2.15ms from Riyadh,
SA
|
|
| 31.29.188.2 |
4.49ms from Samara,
RU
|
|
| 160.250.93.2 |
0.33ms from Sepang,
MY
|
|
| 220.191.107.82 |
5.43ms from Shanghai,
CN
|
|
| 103.142.168.2 |
0.56ms from Sydney,
AU
|
|
| 124.126.195.130 |
2.92ms from Tianjin,
CN
|
|
| 36.55.148.226 |
2.53ms from Tokyo,
JP
|
|
| 213.60.51.146 |
4.95ms from A Coruna,
ES
|
|
| 44.247.68.66 |
0.17ms from Boardman,
US
|
|
| 200.123.110.82 |
0.88ms from Buenos Aires,
AR
|
|
| 113.8.88.146 |
14.31ms from Changchun,
CN
|
|
| 221.212.210.242 |
7.19ms from Changchun,
CN
|
|
| 76.185.233.146 |
10.48ms from Dallas,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Manila, PH
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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