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 |
|---|---|---|
| 166.111.4.100 | tsinghuauniversity.org | 9 |
| 166.111.33.5 | duffytec.cn | 1 |
| 166.111.4.39 | tsinghuadigit.com | 1 |
| 166.111.61.120 | gdp-lab.top | 1 |
| 166.111.8.30 | dns5.edu.cn | 1 |
| 166.111.17.82 | interact.cool | 1 |
| 166.111.59.16 | airlinedata.org | 1 |
| 166.111.32.65 | mivi.name | 1 |
Hosted domains API
Pingable IPs
970 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
|
|
| 166.111.27.60 |
2.57ms from Beijing,
CN
|
|
| 166.111.36.1 |
2.19ms from Beijing,
CN
|
|
| 166.111.56.1 |
3.95ms from Beijing,
CN
|
|
| 166.111.14.1 |
4.05ms from Beijing,
CN
|
|
| 166.111.29.129 |
3.72ms from Beijing,
CN
|
|
| 166.111.53.163 |
2.10ms from Beijing,
CN
|
|
| 166.111.19.33 |
2.27ms from Beijing,
CN
|
|
| 166.111.34.223 |
2.41ms from Beijing,
CN
|
|
| 166.111.28.47 |
2.25ms from Beijing,
CN
|
|
| 166.111.60.92 |
2.33ms from Beijing,
CN
|
|
| 166.111.25.93 |
2.33ms from Beijing,
CN
|
|
| 166.111.62.1 |
2.27ms from Beijing,
CN
|
|
| 166.111.9.181 |
4.33ms from Beijing,
CN
|
|
| 166.111.32.179 |
2.28ms from Beijing,
CN
|
|
| 166.111.54.50 |
3.13ms from Beijing,
CN
|
|
| 166.111.21.28 |
2.01ms from Beijing,
CN
|
|
| 166.111.26.222 |
2.40ms from Beijing,
CN
|
|
| 166.111.30.63 |
2.35ms from Beijing,
CN
|
|
| 166.111.50.224 |
2.15ms from Beijing,
CN
|
|
| 166.111.57.81 |
2.42ms from Beijing,
CN
|
|
| 166.111.10.1 |
4.36ms from Beijing,
CN
|
|
| 166.111.44.37 |
2.50ms from Beijing,
CN
|
|
| 166.111.12.129 |
2.49ms from Beijing,
CN
|
|
| 166.111.42.122 |
2.23ms 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 |
|---|---|---|
| 73.103.21.18 |
12.70ms from Chicago,
US
|
|
| 125.22.33.130 |
2.07ms from Delhi,
IN
|
|
| 64.77.251.18 |
0.85ms from Draper,
US
|
|
| 113.98.95.114 |
2.51ms from Guangzhou,
CN
|
|
| 202.104.113.66 |
1.63ms from Guangzhou,
CN
|
|
| 103.149.251.2 |
0.69ms from Ho Chi Minh City,
VN
|
|
| 105.187.232.66 |
0.33ms from Johannesburg,
ZA
|
|
| 178.150.185.162 |
6.96ms from Kharkiv,
UA
|
|
| 80.87.91.162 |
15.48ms from Lagos,
NG
|
|
| 16.24.250.50 |
0.14ms from Manama,
BH
|
|
| 98.244.251.162 |
14.29ms from Miami,
US
|
|
| 89.97.207.162 |
0.97ms from Milan,
IT
|
|
| 93.171.96.50 |
13.48ms from Moscow,
RU
|
|
| 13.204.114.34 |
0.16ms from Mumbai,
IN
|
|
| 41.204.184.66 |
0.61ms from Nairobi,
KE
|
|
| 70.125.59.146 |
7.42ms from Orlando,
US
|
|
| 60.153.243.194 |
3.78ms from Osaka,
JP
|
|
| 85.164.82.114 |
1.58ms from Oslo,
NO
|
|
| 221.1.8.50 |
5.15ms from Qingdao,
CN
|
|
| 185.230.211.114 |
0.08ms from Riyadh,
SA
|
|
| 222.108.48.242 |
0.99ms from Seoul,
KR
|
|
| 103.136.141.130 |
0.84ms from Sydney,
AU
|
|
| 49.114.225.82 |
3.49ms from UEruemqi,
CN
|
|
| 91.211.225.18 |
0.44ms from Warsaw,
PL
|
|
| 119.97.143.66 |
1.83ms from Wuhan,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Chuncheon, KR
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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