166.111.0.0/17
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 166.111.0.0/17
| 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 55 domain names hosted across 42 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|
Hosted domains API
Pingable IPs
1,932 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 166.111.2.33 |
3.93ms from Beijing,
CN
|
|
| 166.111.60.20 |
2.35ms from Beijing,
CN
|
|
| 166.111.116.225 |
3.38ms from Beijing,
CN
|
|
| 166.111.32.245 |
2.41ms from Beijing,
CN
|
|
| 166.111.84.1 |
4.93ms from Beijing,
CN
|
|
| 166.111.76.74 |
3.33ms from Beijing,
CN
|
|
| 166.111.77.76 |
3.07ms from Tianjin,
CN
|
|
| 166.111.36.92 |
2.38ms from Beijing,
CN
|
|
| 166.111.89.74 |
2.37ms from Beijing,
CN
|
|
| 166.111.25.5 |
3.59ms from Beijing,
CN
|
|
| 166.111.109.20 |
3.55ms from Beijing,
CN
|
|
| 166.111.6.99 |
3.31ms from Beijing,
CN
|
|
| 166.111.50.97 |
3.06ms from Tianjin,
CN
|
|
| 166.111.57.14 |
3.37ms from Beijing,
CN
|
|
| 166.111.100.8 |
2.47ms from Beijing,
CN
|
|
| 166.111.18.235 |
3.23ms from Beijing,
CN
|
|
| 166.111.124.1 |
4.08ms from Beijing,
CN
|
|
| 166.111.39.156 |
3.31ms from Tianjin,
CN
|
|
| 166.111.11.1 |
4.16ms from Beijing,
CN
|
|
| 166.111.121.30 |
4.24ms from Beijing,
CN
|
|
| 166.111.35.59 |
2.15ms from Beijing,
CN
|
|
| 166.111.119.172 |
2.29ms from Beijing,
CN
|
|
| 166.111.42.122 |
2.36ms from Beijing,
CN
|
|
| 166.111.93.1 |
4.05ms from Beijing,
CN
|
|
| 166.111.21.28 |
2.11ms 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 |
|---|---|---|
| 83.86.224.1 |
2.01ms from Amsterdam,
NL
|
|
| 217.111.46.225 |
3.75ms from Amsterdam,
NL
|
|
| 165.188.160.1 |
12.23ms from Ashburn,
US
|
|
| 70.169.6.129 |
5.62ms from Ashburn,
US
|
|
| 68.225.180.1 |
6.14ms from Ashburn,
US
|
|
| 157.173.163.1 |
4.20ms from Brussels,
BE
|
|
| 38.15.176.65 |
7.83ms from Calgary,
CA
|
|
| 71.82.180.1 |
6.86ms from Chicago,
US
|
|
| 149.28.125.177 |
0.12ms from Chicago,
US
|
|
| 27.8.208.1 |
3.54ms from Chongqing,
CN
|
|
| 24.112.192.1 |
15.82ms from Cleveland,
US
|
|
| 71.64.22.97 |
8.88ms from Columbus,
US
|
|
| 83.94.51.1 |
5.95ms from Copenhagen,
DK
|
|
| 70.164.36.129 |
12.44ms from Dallas,
US
|
|
| 8.38.212.1 |
7.66ms from Dallas,
US
|
|
| 193.123.73.65 |
0.16ms from Dubai,
AE
|
|
| 86.41.136.1 |
2.59ms from Dublin,
IE
|
|
| 92.26.213.33 |
2.45ms from Erith,
GB
|
|
| 113.111.244.1 |
3.90ms from Guangzhou,
CN
|
|
| 14.224.122.49 |
5.15ms from Hanoi,
VN
|
|
| 70.94.144.1 |
12.92ms from Houston,
US
|
|
| 192.146.190.1 |
2.15ms from Houston,
US
|
|
| 108.204.170.177 |
3.97ms from Houston,
US
|
|
| 117.93.208.1 |
8.40ms from Huai'an,
CN
|
|
| 117.69.102.1 |
15.37ms from Huai'an,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Beijing, CN
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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