129.100.128.0/18

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 129.100.128.0/18

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 26 domain names hosted across 16 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
129.100.174.158	camp11ironring.com	5
129.100.145.77	usc-online.ca	1
129.100.190.144	makerthinker.org	1
129.100.174.162	weoutreach.ca	1
129.100.160.113	ivey.ca	1
129.100.190.155	worldiscoveries.ca	1
129.100.190.20	filogeneti.ca	1
129.100.145.179	949logs.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

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
13.92.211.114	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
181.20.197.2	AS22927 Telefonica de Argentina	`1.84ms` from Buenos Aires, AR
70.65.87.18	AS6327 Shaw Communications Inc.	`9.94ms` from Calgary, CA
50.220.72.98	AS7922 Comcast Cable Communications, LLC	`1.27ms` from Chicago, US
131.241.69.114	AS6181 Cincinnati Bell Telephone Company LLC	`7.68ms` from Cincinnati, US
213.154.69.34	AS8346 SONATEL-AS Autonomous System	`1.44ms` from Dakar, SN
96.68.187.194	AS7922 Comcast Cable Communications, LLC	`6.63ms` from Fremont, US
218.15.4.98	AS4134 CHINANET-BACKBONE	`7.66ms` from Guangzhou, CN
182.253.91.34	AS17451 BIZNET NETWORKS	`13.75ms` from Jakarta, ID
5.94.198.98	AS30722 Vodafone Italia S.p.A.	`6.95ms` from Milan, IT
167.58.160.130	AS6057 Administracion Nacional de Telecomunicaciones	`1.58ms` from Montevideo, UY
114.201.7.98	AS9318 SK Broadband Co Ltd	`1.38ms` from Seoul, KR
60.244.248.18	AS7482 Asia Pacific On-line Service Inc.	`4.80ms` from Taipei, TW
218.221.80.226	AS2527 Sony Network Communications Inc.	`2.67ms` from Tokyo, JP
208.81.226.50	AS19709 Helix Computer Systems, Inc.	`11.85ms` from Ashburn, US
20.127.38.130	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
199.168.161.2	AS7381 BroadbandONE, LLC	`1.95ms` from Atlanta, US
50.223.85.162	AS7922 Comcast Cable Communications, LLC	`5.93ms` from Atlanta, US
195.3.170.2	AS15962 Orange Slovensko a.s.	`5.28ms` from Bratislava, SK
186.128.181.130	AS22927 Telefonica de Argentina	`1.54ms` from Buenos Aires, AR
183.214.164.34	AS56047 China Mobile communications corporation	`1.71ms` from Changsha, CN
12.117.167.194	AS7018 AT&T Enterprises, LLC	`1.17ms` from Dallas, US
134.61.88.82	AS47610 RWTH Aachen University	`6.07ms` from Frankfurt am Main, DE
81.225.67.2	AS3301 Telia Company AB	`4.50ms` from Goeteborg, SE
66.92.45.162	AS9304 HGC Global Communications Limited	`2.59ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -m5 129.100.130.187

traceroute to 129.100.130.187 (129.100.130.187): 5 hops max, 52 byte packets

1 [AS42473] 217.146.4.160 0.283 ms

2 [AS42473] 144.208.244.33 0.244 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On October 30th 2025

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.

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