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 39
IPv4 addresses 65,536
IPv6 addresses 0
ASN type Education
Registry arin
Allocated 28 years ago on Jun 03, 1998
Updated 4 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 39 domain names hosted across 12 IP addresses on this ASN.

IP Address Domain Domains on this IP
142.66.8.36 ██████████ 21
142.66.6.251 ██████████ 8
142.66.8.38 ██████████ 5
142.66.3.136 ██████████ 3
142.66.139.19 ██████████ 2
142.66.185.13 ██████████ 2
142.66.6.152 ██████████ 1
142.66.6.116 ██████████ 1
142.66.142.10 ██████████ 1
142.66.6.121 ██████████ 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 4.21ms from Calgary, CA
142.66.2.1 AS11257 University of Lethbridge 3.85ms 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
67.189.240.41 AS7922 Comcast Cable Communications, LLC 7.41ms from Boston, US
85.99.155.153 AS9121 Turk Telekomunikasyon Anonim Sirketi 4.84ms from Denizli, TR
61.144.210.137 AS4134 CHINANET-BACKBONE 0.99ms from Guangzhou, CN
45.82.10.25 AS35352 LLC "Ukrtele-Service" 0.54ms from Kyiv, UA
107.154.103.233 AS19551 Incapsula Inc 0.16ms from Miami, US
31.199.101.41 AS3269 Telecom Italia S.p.A. 4.92ms from Milan, IT
195.9.55.233 AS25513 PJSC Moscow city telephone network 1.42ms from Moscow, RU
13.201.135.153 AS16509 Amazon.com, Inc. 0.12ms from Mumbai, IN
63.65.182.217 AS701 Verizon Business 1.61ms from New York City, US
76.115.180.121 AS7922 Comcast Cable Communications, LLC 5.47ms from Portland, US
50.18.159.105 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
67.136.136.73 AS7385 Allstream Business US, LLC 5.13ms from Seattle, US
163.29.17.153 AS4782 Data Communication Business Group 1.20ms from Taipei, TW
213.125.8.201 AS33915 Vodafone Libertel B.V. 0.48ms from Amsterdam, NL
20.54.148.105 AS8075 Microsoft Corporation 0.15ms from Amsterdam, NL
104.164.245.169 AS54103 MOD Mission Critical, LLC 0.21ms from Atlanta, US
124.205.6.57 AS4808 China Unicom Beijing Province Network 3.67ms from Beijing, CN
190.85.193.249 AS14080 Telmex Colombia S.A. 1.14ms from Bogota, CO
85.108.39.25 AS9121 Turk Telekomunikasyon Anonim Sirketi 10.90ms from Bursa, TR
98.228.85.121 AS7922 Comcast Cable Communications, LLC 11.36ms from Chicago, US
188.49.247.153 AS25019 Saudi Telecom Company JSC 5.01ms from Jeddah, SA
49.190.100.233 AS4804 Microplex PTY LTD 4.40ms from Melbourne, AU
12.233.135.217 AS7018 AT&T Enterprises, LLC 1.48ms from Miami, US
104.161.37.25 AS53755 Input Output Flood LLC 0.59ms from Phoenix, US
80.188.51.153 AS5610 O2 Czech Republic, a.s. 0.91ms from Prague, CZ

Traceroute

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

$
traceroute -a -n -q1 -m10 142.66.45.137
traceroute to 142.66.45.137 (142.66.45.137): 10 hops max, 52 byte packets
1 [AS15169] 66.249.94.186 45.936 ms
2 [AS15169] 108.170.255.174 141.462 ms
3 [AS6509] 199.212.24.126 42.939 ms
4 [AS6509] 199.212.24.66 57.609 ms
5 [AS6509] 199.212.24.67 57.319 ms
7 [AS11257] 142.66.16.25 55.232 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Council Bluffs, 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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