AS number details

AS11257

University of Lethbridge  ·  uleth.ca

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AS11257 – University of Lethbridge

Field Value
Country Canada
Website uleth.ca
Hosted domains 36
Number of IPv4 65,536
Number of IPv6 0
ASN type Education
Registry arin
Allocated 27 years ago on Jun 03, 1998
Updated 2 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 36 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 ██████████ 9
142.66.8.38 ██████████ 5
142.66.3.136 ██████████ 3
142.66.139.19 ██████████ 2
142.66.142.11 ██████████ 1
142.66.6.121 ██████████ 1
142.66.17.3 ██████████ 1
142.66.142.10 ██████████ 1
142.66.6.116 ██████████ 1

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Useful for Cybersecurity

Peers

There are 3 peers for this ASN.

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

There are 2 upstreams for this ASN.

upstreams Name
AS6327 Shaw Communications Inc.
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
142.66.140.66 AS11257 University of Lethbridge 219.91ms from Sydney, AU
142.66.2.1 AS11257 University of Lethbridge 7.31ms 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
213.124.69.121 AS33915 Vodafone Libertel B.V. 0.75ms from Amsterdam, NL
67.163.138.89 AS7922 Comcast Cable Communications, LLC 11.02ms from Ashburn, US
46.177.154.25 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.10ms from Athens, GR
75.147.63.137 AS7922 Comcast Cable Communications, LLC 7.70ms from Boston, US
204.191.202.105 AS852 TELUS Communications Inc. 5.25ms from Calgary, CA
177.85.130.185 AS262608 Vapt Solucoes Tecnologicas Ltda 16.58ms from Campina Grande, BR
118.92.118.249 AS9500 One New Zealand Group Limited 8.53ms from Christchurch, NZ
3.14.164.121 AS16509 Amazon.com, Inc. 0.12ms from Columbus, US
34.10.41.57 AS396982 Google LLC 0.13ms from Council Bluffs, US
206.217.208.201 AS48254 20i Limited 0.25ms from Dallas, US
12.157.177.201 AS7018 AT&T Enterprises, LLC 1.25ms from Dallas, US
112.127.39.9 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 6.88ms from Hangzhou, CN
27.75.43.217 AS7552 Viettel Group 0.88ms from Ho Chi Minh City, VN
60.170.184.73 AS4134 CHINANET-BACKBONE 8.97ms from Huai'an, CN
14.195.2.201 AS45820 Tata Teleservices ISP AS 0.86ms from Hyderabad, IN
45.4.56.57 AS266038 VN TELECOM PROVEDORES A.R.C EIRELI 3.09ms from Joao Pessoa, BR
82.98.144.153 AS42612 DinaHosting S.L. 0.27ms from Madrid, ES
83.106.21.137 AS5378 Vodafone Limited 6.27ms from Manchester, GB
170.55.117.105 AS33132 Crown Castle Fiber LLC 0.39ms from Miami, US
73.58.247.169 AS7922 Comcast Cable Communications, LLC 6.84ms from Murfreesboro, US
208.125.71.153 AS11351 Charter Communications Inc 13.21ms from New York City, US
189.44.15.9 AS10429 TELEFÔNICA BRASIL S.A 2.17ms from Osasco, BR
90.21.217.9 AS3215 Orange S.A. 11.01ms from Paris, FR
67.59.82.169 AS25899 LS Networks 0.76ms from Portland, US
89.187.132.9 AS35592 Coolhousing s.r.o. 0.49ms 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 142.66.106.119
traceroute to 142.66.106.119 (142.66.106.119): 10 hops max, 52 byte packets
1 [AS15169] 66.249.94.186 141.072 ms
3 [AS6509] 199.212.24.228 142.271 ms
4 [AS6509] 199.212.24.66 156.932 ms
5 [AS6509] 199.212.24.67 156.727 ms
6 [AS15296] 199.116.234.252 168.403 ms
7 [AS11257] 142.66.16.25 164.719 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
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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