1. All IP Ranges
  2. 128.0.0.0/8
  3. 128.255.0.0/16
  4. AS3676  | 128.255.0.0/16

128.255.0.0/16

AS3676  ·  University of Iowa

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Summary

Country United States
Domain uiowa.edu
ASN AS3676
Registry ARIN
ID UIOWA

WHOIS Details

NetHandle:      NET-128-255-0-0-1
OrgID:          UNIVER-294
Parent:         NET-128-0-0-0-0
NetName:        UIOWA
NetRange:       128.255.0.0 - 128.255.255.255
NetType:        allocation
RegDate:        1987-06-05
Updated:        2025-06-02
TechHandle:     SOPPE-ARIN
TechHandle:     TIMPE9-ARIN
Source:         ARIN


OrgID:          UNIVER-294
OrgName:        University of Iowa
CanAllocate:    
Street:         Information Technology Services
Street:         5 LC
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        1987-06-05
Updated:        2024-07-31
OrgAdminHandle: MILLS405-ARIN
OrgTechHandle:  HOSTM404-ARIN
OrgTechHandle:  MILLS405-ARIN
OrgTechHandle:  SOPPE-ARIN
OrgTechHandle:  TIMPE9-ARIN
OrgAbuseHandle: NETWO442-ARIN
OrgNOCHandle:   NOC1452-ARIN
Source:         ARIN


POCHandle:      HOSTM404-ARIN
IsRole:         Y
LastName:       hostmaster
FirstName:      
Street:         Information Technology Services
Street:         2800 UCC
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        2003-12-10
Updated:        2025-11-19
OfficePhone:    +1-319-335-6159
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MILLS405-ARIN
IsRole:         N
LastName:       Millson
FirstName:      Andrew
Street:         2800 University Capital Center
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52246
RegDate:        2022-05-24
Updated:        2025-03-19
OfficePhone:    +1-319-335-6159
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      TIMPE9-ARIN
IsRole:         N
LastName:       Timperley
FirstName:      Trevor
Street:         240 South Madison Street
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        2023-05-15
Updated:        2024-06-13
OfficePhone:    +1-319-467-0372
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      SOPPE-ARIN
IsRole:         N
LastName:       Soppe
FirstName:      Scott
Street:         240 South Madison Street
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        2022-04-14
Updated:        2025-06-23
OfficePhone:    +1-319-384-2202
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      NETWO442-ARIN
IsRole:         Y
LastName:       network abuse
FirstName:      
Street:         Information Technology Services
Street:         Help Desk, 2800 UCC
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        2003-12-10
Updated:        2025-03-26
OfficePhone:    +1-319-384-0800
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      NOC1452-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         Information Technology Services
Street:         5 LC
City:           Iowa City
State/Prov:     IA
Country:        US
PostalCode:     52242
RegDate:        2003-12-10
Updated:        2025-11-19
OfficePhone:    +1-319-335-6449
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 128.0.0.0/8

Range ASN Company Num of IPs
128.78.0.0/15 AS5410 Bouygues Telecom SA 131,072
128.178.0.0/15 AS559 Ecublens Camp Net 131,072
128.130.0.0/15 AS679 Technische Universitaet Wien 131,072
128.27.0.0/16 AS17511 OPTAGE Inc. 65,536
128.110.0.0/16 AS17055 University of Utah 65,536
128.10.0.0/16 AS17 Purdue University 65,536
128.214.0.0/16 AS1741 CSC - Tieteen tietotekniikan keskus Oy 65,536
128.196.0.0/16 AS1706 The University of Arizona 65,536
128.211.0.0/16 AS17 Purdue University 65,536
128.87.0.0/16 AS158 Telefonaktiebolaget LM Ericsson 65,536
128.210.0.0/16 AS17 Purdue University 65,536
128.167.0.0/16 AS16509 Amazon.com, Inc. 65,536
128.21.0.0/16 AS16509 Amazon.com, Inc. 65,536
128.169.0.0/16 AS16989 The University of Tennessee Health Science Center 65,536
128.13.0.0/16 AS12007 RTX Corporation 65,536
128.230.0.0/16 AS11872 Syracuse University 65,536
128.147.0.0/16 AS122 UPMC 65,536
128.46.0.0/16 AS17 Purdue University 65,536
128.13.0.0/16 AS1341 RTX Corporation 65,536
128.173.0.0/16 AS1312 Virginia Polytechnic Institute and State Univ. 65,536
128.59.0.0/16 AS14 Columbia University 65,536
128.245.0.0/16 AS14340 Salesforce.com, Inc. 65,536
128.3.0.0/16 AS16 Lawrence Berkeley National Laboratory 65,536
128.135.0.0/16 AS160 The University of Chicago 65,536
128.125.0.0/16 AS16509 Amazon Technologies Inc. 65,536
128.11.0.0/16 AS16509 Amazon.com, Inc. 65,536
128.181.0.0/16 AS16509 Amazon Technologies Inc. 65,536
128.188.0.0/16 AS16509 Amazon Technologies Inc. 65,536
128.212.0.0/16 AS16509 Amazon.com, Inc. 65,536
128.81.0.0/16 AS16509 Amazon.com, Inc. 65,536
128.82.0.0/16 AS1201 Old Dominion University 65,536
128.146.0.0/16 AS159 Ohio State University 65,536
128.239.0.0/16 AS11975 The College of William and Mary 65,536
128.122.0.0/16 AS12 New York University 65,536
128.182.0.0/16 AS1206 Pittsburgh Supercomputing Center 65,536
128.182.0.0/16 AS1207 Pittsburgh Supercomputing Center 65,536
128.149.0.0/16 AS127 National Aeronautics and Space Administration 65,536
128.119.0.0/16 AS1249 University of Massachusetts - AMHERST 65,536
128.111.0.0/16 AS131 University of California, Santa Barbara 65,536
128.63.0.0/16 AS13 Headquarters, USAISC 65,536
128.250.0.0/16 AS10148 The University of Melbourne 65,536
128.150.0.0/16 AS102 U.S. National Science Foundation 65,536
128.138.0.0/16 AS104 University of Colorado 65,536
128.136.0.0/16 AS13649 Flexential Corp. 65,536
128.17.0.0/16 AS14340 Salesforce.com, Inc. 65,536
128.107.0.0/16 AS109 CISCO SYSTEMS, INC. 65,536
128.164.0.0/16 AS11039 The George Washington University 65,536
128.197.0.0/16 AS111 Boston University 65,536
128.33.0.0/16 AS11488 RTX BBN Technologies, Inc. 65,536
128.103.0.0/16 AS1742 Harvard University 65,536

Hosted domains

There are 131 domain names hosted across 58 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
128.255.237.57 iowahealthfactbook.net 14
128.255.166.109 epilepsyjourneystudy.org 12
128.255.96.133 juanpablohourcade.com 9
128.255.103.98 iowaapindex.com 8
128.255.58.225 choroidlab.org 5
128.255.27.174 gopaincare.org 5
128.255.26.152 iowawatershedapproach.org 5
128.255.252.89 colabatron.com 4
128.255.102.66 iowageologicalsurvey.org 4
128.255.22.19 morl-audiogene.org 4
128.255.27.172 sdfis.org 3
128.255.96.120 space-audio.org 3
128.255.22.103 humansimulationsociety.org 2
128.255.103.24 writinguniversity.net 2
128.255.26.71 ncpamap.org 2
128.255.92.29 clinicalcohort.org 2
128.255.58.227 stonerounds.org 2
128.255.58.176 oculargeneexpression.com 2
128.255.22.122 deafnessvariationdatabase.org 2
128.255.58.215 singlecell-eye.org 2

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

1,579 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
128.255.110.14 AS3676 University of Iowa 9.92ms from Chicago, US
128.255.211.195 AS3676 University of Iowa 6.78ms from Chicago, US
128.255.98.41 AS3676 University of Iowa 7.09ms from Chicago, US
128.255.67.155 AS3676 University of Iowa 6.66ms from Chicago, US
128.255.34.139 AS3676 University of Iowa 6.52ms from Chicago, US
128.255.248.130 AS3676 University of Iowa 6.42ms from Chicago, US
128.255.237.27 AS3676 University of Iowa 6.92ms from Chicago, US
128.255.16.210 AS3676 University of Iowa 6.20ms from Chicago, US
128.255.250.160 AS3676 University of Iowa 6.31ms from Chicago, US
128.255.82.77 AS3676 University of Iowa 6.84ms from Chicago, US
128.255.170.223 AS3676 University of Iowa 6.70ms from Chicago, US
128.255.137.208 AS3676 University of Iowa 7.37ms from Chicago, US
128.255.70.26 AS3676 University of Iowa 6.84ms from Chicago, US
128.255.72.50 AS3676 University of Iowa 6.65ms from Chicago, US
128.255.123.54 AS3676 University of Iowa 16.72ms from Des Moines, US
128.255.99.9 AS3676 University of Iowa 6.79ms from Chicago, US
128.255.245.58 AS3676 University of Iowa 13.68ms from Des Moines, US
128.255.241.15 AS3676 University of Iowa 6.39ms from Chicago, US
128.255.223.8 AS3676 University of Iowa 7.07ms from Chicago, US
128.255.2.145 AS3676 University of Iowa 5.17ms from Chicago, US
128.255.208.65 AS3676 University of Iowa 7.19ms from Chicago, US
128.255.47.182 AS3676 University of Iowa 10.47ms from Kansas City, US
128.255.176.241 AS3676 University of Iowa 6.86ms from Chicago, US
128.255.182.63 AS3676 University of Iowa 6.69ms from Chicago, US
128.255.57.24 AS3676 University of Iowa 6.41ms from Chicago, US

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
47.70.151.16 AS3209 Vodafone GmbH 19.94ms from Berlin, DE
6.3.21.64 AS668 United States Department of Defense (DoD) 1.78ms from Los Angeles, US
23.11.189.96 AS16625 Akamai Technologies, Inc. 0.58ms from Melbourne, AU
34.233.234.208 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
108.88.112.176 AS7018 AT&T Enterprises, LLC 15.69ms from San Antonio, US
189.250.29.96 AS8151 UNINET 9.79ms from Santiago de Queretaro, MX
159.226.65.224 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2.59ms from Tianjin, CN
125.198.145.96 AS2518 BIGLOBE Inc. 3.38ms from Tokyo, JP
97.148.62.192 AS6167 Verizon Business 15.80ms from Atlanta, US
83.253.100.208 AS1257 Tele2 Sverige AB 5.76ms from Falkenberg, SE
189.163.152.240 AS8151 UNINET 0.95ms from Guadalajara, MX
78.186.128.32 AS9121 Turk Telekomunikasyon Anonim Sirketi 2.27ms from Istanbul, TR
88.221.183.32 AS16625 Akamai Technologies, Inc. 0.41ms from London, GB
51.142.82.224 AS8075 Microsoft Corporation 0.23ms from London, GB
31.196.221.16 AS3269 Telecom Italia S.p.A. 8.22ms from Milan, IT
58.241.127.128 AS4837 CHINA UNICOM China169 Backbone 4.61ms from Nanjing, CN
15.236.158.160 AS16509 Amazon.com, Inc. 0.63ms from Paris, FR
73.67.225.64 AS7922 Comcast Cable Communications, LLC 2.54ms from Portland, US
191.54.188.16 AS53006 ALGAR TELECOM S/A 16.89ms from Sao Paulo, BR
174.21.91.208 AS209 CenturyLink Communications, LLC 1.53ms from Seattle, US
102.205.134.128 AS328611 Libyan Elite Company for Technical Solutions 13.72ms from Tripoli, LY
149.56.39.160 AS16276 OVH SAS 0.08ms from Beauharnois, CA
63.246.151.224 AS7015 Comcast Cable Communications, LLC 0.30ms from Boston, US
68.154.125.112 AS8075 Microsoft Corporation 0.63ms from Boydton, US
81.245.173.240 AS5432 Proximus NV 3.21ms from Brussels, BE

Traceroute

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

$
traceroute -a -n -q1 -f4 128.255.19.145
traceroute to 128.255.19.145 (128.255.19.145): 64 hops max, 52 byte packets
4 [AS6939] 184.105.81.151 23.544 ms
5 [AS6939] 184.105.48.246 11.253 ms
6 [AS2381] 216.56.50.74 15.457 ms
7 [AS3676] 198.49.182.165 15.973 ms
8 [AS3676] 128.255.2.41 15.995 ms
9 *
10 *
11 *
12 *
13 [AS3676] 128.255.2.49 17.31 ms
14 [AS3676] 128.255.19.145 17.441 ms
Measurement taken from IPinfo ProbeNet in Grand Rapids, US
On

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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