129.100.0.0/24

AS823 · University of Western Ontario

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Summary

Country	Canada
Domain	uwo.ca
ASN	AS823
Parent Range	129.100.0.0/16
Registry	ARIN
ID	UWO-NET

WHOIS Details

NetHandle:      NET-129-100-0-0-1
OrgID:          UWO-Z
Parent:         NET-129-0-0-0-0
NetName:        UWO-NET
NetRange:       129.100.0.0 - 129.100.255.255
NetType:        allocation
RegDate:        1987-10-27
Updated:        2021-12-14
TechHandle:     NOC310-ARIN
AbuseHandle:    NAC96-ARIN
NOCHandle:      NOC310-ARIN
Source:         ARIN


OrgID:          UWO-Z
OrgName:        University of Western Ontario
CanAllocate:    
Street:         Western Technology Services
Street:         1393 Western Road
Street:         Rm SSB 4352
City:           London
State/Prov:     ON
Country:        CA
PostalCode:     N6G-1G9
RegDate:        2021-02-17
Updated:        2025-10-14
OrgAdminHandle: NOC310-ARIN
OrgTechHandle:  NOC310-ARIN
OrgAbuseHandle: NOC310-ARIN
Source:         ARIN


POCHandle:      NAC96-ARIN
IsRole:         Y
LastName:       Network Abuse Contact
FirstName:      
Street:         Western Technology Services
Street:         1393 Western Road
Street:         Rm SSB 4352
City:           London
State/Prov:     ON
Country:        CA
PostalCode:     N6G-1G9
RegDate:        2014-02-28
Updated:        2025-05-01
OfficePhone:    +1-519-661-3525
Mailbox:        abuse@uwo.ca
Source:         ARIN


POCHandle:      NOC310-ARIN
IsRole:         Y
LastName:       Network Operations Centre
FirstName:      
Street:         Information Technology Services
Street:         1393 Western Road
Street:         Rm SSB 4352
City:           London
State/Prov:     ON
Country:        CA
PostalCode:     N6G-1G9
RegDate:        2003-02-04
Updated:        2025-10-14
OfficePhone:    +1-519-661-3525
Mailbox:        noc@uwo.ca
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 129.100.0.0/24

Range	ASN	Company	Num of IPs
129.100.0.0/16	AS823	University of Western Ontario	65,536

Nearby Ranges

BGP prefixes that overlap with 129.100.0.0/16

Range	ASN	Company	Num of IPs
129.100.0.0/16	AS823	University of Western Ontario	65,536

Hosted domains

There are 157 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
129.100.0.59	ivey.ca	97
129.100.0.79	uwo.ca	35
129.100.0.61	canadasbeststudentexperience.com	5
129.100.0.55	westernu.ca	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
129.100.0.62	AS823 University of Western Ontario	`4.87ms` from Toronto, 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
45.136.65.232	AS210489 Beyond Relationship Marketing GmbH	`1.52ms` from Amsterdam, NL
87.245.40.136	AS9145 EWE TEL GmbH	`5.64ms` from Amsterdam, NL
34.72.236.136	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
80.226.140.232	AS3209 Vodafone GmbH	`19.76ms` from Duesseldorf, DE
84.56.110.168	AS3209 Vodafone GmbH	`6.12ms` from Hamburg, DE
163.1.206.8	AS786 Jisc Services Limited	`3.36ms` from London, GB
157.97.135.24	AS3209 Vodafone GmbH	`5.31ms` from Munich, DE
180.115.230.88	AS4134 CHINANET-BACKBONE	`4.75ms` from Nanjing, CN
36.26.120.56	AS4134 CHINANET-BACKBONE	`5.92ms` from Ningbo, CN
210.230.218.40	AS2516 KDDI CORPORATION	`9.46ms` from Osaka, JP
188.48.164.168	AS25019 Saudi Telecom Company JSC	`2.21ms` from Riyadh, SA
183.113.149.248	AS4766 Korea Telecom	`1.70ms` from Seoul, KR
217.208.66.232	AS3301 Telia Company AB	`0.70ms` from Stockholm, SE
86.90.217.120	AS1136 KPN B.V.	`2.31ms` from Amsterdam, NL
17.248.230.8	AS714 Apple Inc.	`10.86ms` from Ashburn, US
54.69.167.88	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
41.34.40.168	AS8452 TE-AS	`8.67ms` from Cairo, EG
23.253.30.232	AS19994 Rackspace Hosting	`0.86ms` from Chicago, US
104.231.98.120	AS10796 Charter Communications Inc	`6.28ms` from Cleveland, US
14.176.74.184	AS45899 VNPT Corp	`3.68ms` from Da Nang, VN
216.52.187.88	AS12179 Unitas Global	`1.10ms` from Dallas, US
108.131.116.248	AS16509 Amazon.com, Inc.	`0.48ms` from Dublin, IE
64.225.105.184	AS14061 DigitalOcean, LLC	`0.35ms` from Frankfurt am Main, DE
93.231.252.72	AS3320 Deutsche Telekom AG	`9.11ms` from Frankfurt am Main, DE
85.106.251.56	AS9121 Turk Telekomunikasyon Anonim Sirketi	`4.96ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -f3 129.100.0.1

traceroute to 129.100.0.1 (129.100.0.1): 64 hops max, 52 byte packets

3 [AS174] 154.25.16.9 7.158 ms

4 [AS174] 154.54.37.141 9.048 ms

5 [AS174] 130.117.0.189 13.529 ms

6 [AS174] 149.6.68.98 14.149 ms

7 [AS13335] 162.158.208.43 12.855 ms

8 [AS13335] 162.158.209.83 12.692 ms

9 *

10 [AS13335] 162.158.209.117 13.679 ms

11 *

12 *

13 [AS823] 129.100.0.1 141.571 ms

Measurement taken from

IPinfo ProbeNet in Athens, GR

On April 13th 2026

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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