IP Address Information For 128.100.3.128

IP address information can vary in different details, from the IP's server and datacenters, WHOIS information, all the way to geolocation and longitude/latitude coordinates, and goes all the way to the IP address' network organization, IP ranges, appearance in DNSBL blacklists, and more.

In this page we have collected a sample of information for the IP address 128.100.3.128.
if you have any comments on the information shown in this page, feel free to contact us.

General information:

IP Address: 128.100.3.128
DNS Hostname (PTR Record): smtp-out1.cs.toronto.edu
DNS Nameservers: bay.cs.toronto.edu, ns2.toronto.edu, ns7.toronto.edu
DNS Zone: 3.100.128.in-addr.arpa
Network route: 128.100.0.0/16
Network owner: University of Toronto
ASN #: 239
Part of range: 128.100.3.0/24

Geographic location:

Country: Canada - CA
City: Wilcox Corners
State/Region: Ontario
Longitude: -79.591331
Latitude: 43.074902
Timezone: -04:00

Location on the map:

The IP address 128.100.3.128 originates in a datacenter located in Wilcox Corners, Canada

Network speed information:

Average network speed for Canada:

Mobile:

Download

129.58

Mbps

,

Upload

16.94

Mbps
Broadband:

Download

346.17

Mbps

,

Upload

197.32

Mbps

IP Address 128.100.3.128 WHOIS Information:

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#



NetRange:       128.100.0.0 - 128.100.255.255
CIDR:           128.100.0.0/16
NetName:        TORONTO
NetHandle:      NET-128-100-0-0-1
Parent:         NET128 (NET-128-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   University of Toronto (UNIVER-36)
RegDate:        1986-01-09
Updated:        2021-12-14
Ref:            https://rdap.arin.net/registry/ip/128.100.0.0


OrgName:        University of Toronto
OrgId:          UNIVER-36
Address:        Information & Technology Services
Address:        4 Bancroft Avenue
Address:        ROOM 101C
City:           TORONTO
StateProv:      ON
PostalCode:     M5S 1C1
Country:        CA
RegDate:        1988-09-20
Updated:        2025-10-20
Ref:            https://rdap.arin.net/registry/entity/UNIVER-36


OrgAbuseHandle: NSTEC-ARIN
OrgAbuseName:   NS-TECH
OrgAbusePhone:  +1-416-978-4621 
OrgAbuseEmail:  eis.net.eng@utoronto.ca
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NSTEC-ARIN

OrgTechHandle: RS2206-ARIN
OrgTechName:   Sutherland, Russell 
OrgTechPhone:  +1-416-978-6620 
OrgTechEmail:  russell.sutherland@utoronto.ca
OrgTechRef:    https://rdap.arin.net/registry/entity/RS2206-ARIN

OrgAbuseHandle: RS2206-ARIN
OrgAbuseName:   Sutherland, Russell 
OrgAbusePhone:  +1-416-978-6620 
OrgAbuseEmail:  russell.sutherland@utoronto.ca
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RS2206-ARIN

OrgNOCHandle: DCA264-ARIN
OrgNOCName:   Carson, Douglas 
OrgNOCPhone:  +1-416-978-6620 
OrgNOCEmail:  doug.carson@utoronto.ca
OrgNOCRef:    https://rdap.arin.net/registry/entity/DCA264-ARIN

OrgTechHandle: NSTEC-ARIN
OrgTechName:   NS-TECH
OrgTechPhone:  +1-416-978-4621 
OrgTechEmail:  eis.net.eng@utoronto.ca
OrgTechRef:    https://rdap.arin.net/registry/entity/NSTEC-ARIN

RTechHandle: RS2206-ARIN
RTechName:   Sutherland, Russell 
RTechPhone:  +1-416-978-6620 
RTechEmail:  russell.sutherland@utoronto.ca
RTechRef:    https://rdap.arin.net/registry/entity/RS2206-ARIN

RAbuseHandle: NSMAINT-ARIN
RAbuseName:   Nsmaint, A 
RAbusePhone:  +1-416-978-4621 
RAbuseEmail:  nsmaint@utcs.utoronto.ca
RAbuseRef:    https://rdap.arin.net/registry/entity/NSMAINT-ARIN

RNOCHandle: NSTEC-ARIN
RNOCName:   NS-TECH
RNOCPhone:  +1-416-978-4621 
RNOCEmail:  eis.net.eng@utoronto.ca
RNOCRef:    https://rdap.arin.net/registry/entity/NSTEC-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

Reputation information:

Sender score: 100 (very good)

Blacklists information:

Listed in Spamhaus: no
Listed in Barracuda: yes
Listed in Spamcop: no
More blacklists: Full blacklists test on 128.100.3.128

Email behaviour monitor:

The IP address 128.100.3.128 appears to be an active mail server. The following charts represent data the community has gathered by observing the mail sending behaviour of this IP address during the last 10 days from 24-10-25 to 03-11-25:

Sender score:

Sender Volume:

Spamhaus Listing:

Spamcop Listing:

Barracuda Listing: