Autonomous System details

AS11257

University of Lethbridge  ·  uleth.ca

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AS11257 – University of Lethbridge

Field Value
Country Canada
Website uleth.ca
Hosted domains 38
IPv4 addresses 65,536
IPv6 addresses 0
ASN type Education
Registry arin
Allocated 28 years ago on Jun 03, 1998
Updated 6 months ago on Aug 12, 2025
Netblock Company Num of IPs
142.66.0.0/16 University of Lethbridge 65,536

There are no known IPv6 addresses belonging to this network

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IP Ranges API

WHOIS Details


                                                ASHandle:       AS11257
                                                OrgID:          AS11257
                                                ASName:         AS11257
                                                ASNumber:       AS11257
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 38 domain names hosted across 11 IP addresses on this ASN.

IP Address Domain Domains on this IP
142.66.8.36 ██████████ 20
142.66.6.251 ██████████ 8
142.66.8.38 ██████████ 6
142.66.3.136 ██████████ 3
142.66.139.19 ██████████ 2
142.66.6.152 ██████████ 1
142.66.6.116 ██████████ 1
142.66.17.3 ██████████ 1
142.66.142.10 ██████████ 1
142.66.142.11 ██████████ 1

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Useful for Cybersecurity

Peers

There are 3 peers for this ASN.

Peers Name
AS15296 Cybera Inc
AS6327 Shaw Communications
AS852 TELUS Communications Inc.
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS6327 Shaw Communications
AS852 TELUS Communications Inc.
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

2 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
142.66.17.10 AS11257 University of Lethbridge 4.32ms from Calgary, CA
142.66.2.3 AS11257 University of Lethbridge 3.79ms from Calgary, CA

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
72.218.214.73 AS22773 Cox Communications Inc. 9.86ms from Ashburn, US
88.150.100.249 AS43341 MDlink online service center GmbH 2.59ms from Berlin, DE
84.196.195.137 AS6848 Telenet BV 6.45ms from Brussels, BE
70.63.145.249 AS11426 Charter Communications Inc 1.01ms from Charlotte, US
65.58.121.153 AS3356 Level 3 Parent, LLC 9.85ms from Chicago, US
1.22.243.41 AS45528 Tikona Infinet Ltd. 19.46ms from Delhi, IN
49.249.75.9 AS45820 Tata Teleservices ISP AS 0.55ms from Delhi, IN
151.228.154.9 AS5607 Sky UK Limited 4.20ms from Erith, GB
162.62.74.89 AS132203 Tencent Building, Kejizhongyi Avenue 0.51ms from Frankfurt am Main, DE
110.17.169.121 AS4837 CHINA UNICOM China169 Backbone 2.97ms from Hohhot, CN
223.31.1.217 AS9583 Sify Limited 0.95ms from Hyderabad, IN
103.104.8.217 AS4800 PT Aplikanusa Lintasarta 0.82ms from Jakarta, ID
178.90.72.137 AS9198 JSC Kazakhtelecom 7.08ms from Karagandy, KZ
52.172.171.57 AS8075 Microsoft Corporation 0.16ms from Lohogaon, IN
186.180.49.57 AS27831 Colombia Móvil 5.21ms from Medellin, CO
47.199.1.185 AS5650 Frontier Communications of America, Inc. 6.57ms from Miami, US
124.227.116.105 AS4134 CHINANET-BACKBONE 2.56ms from Nanning, CN
20.172.57.153 AS8075 Microsoft Corporation 0.18ms from Phoenix, US
189.52.193.153 AS4230 CLARO S.A. 11.65ms from Rio de Janeiro, BR
92.244.221.25 AS31642 Varnamo Energi AB 5.94ms from Stockholm, SE
130.33.236.73 AS8075 Microsoft Corporation 0.15ms from Tokyo, JP
104.25.243.185 AS13335 Cloudflare, Inc. 0.10ms from Wrocław, PL
77.235.18.57 AS41750 Mega-Line Ltd. 0.36ms from Bishkek, KG
190.85.193.249 AS14080 Telmex Colombia S.A. 1.16ms from Bogota, CO
179.33.66.9 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 2.99ms from Bogota, CO

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -m10 142.66.114.2
traceroute to 142.66.114.2 (142.66.114.2): 10 hops max, 52 byte packets
1 [AS15169] 66.249.94.186 30.428 ms
4 [AS6509] 199.212.24.66 46.029 ms
5 [AS6509] 199.212.24.67 53.157 ms
7 [AS11257] 142.66.16.25 54.343 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Las Vegas, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS11257 at robtex.

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