207.71.128.0/23

AS21896 · Alliant Energy

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	alliantenergy.com
ASN	AS21896
Registry	ARIN
ID	NETBLK-ALI2

WHOIS Details

NetHandle:      NET-207-71-128-0-1
OrgID:          ALLIA-101
Parent:         NET-207-0-0-0-0
NetName:        NETBLK-ALI2
NetRange:       207.71.128.0 - 207.71.159.255
NetType:        allocation
RegDate:        1996-03-20
Updated:        2021-12-14
Source:         ARIN


OrgID:          ALLIA-101
OrgName:        Alliant Energy
CanAllocate:    
Street:         4902 North Biltmore Lane
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53707-1007
Comment:        Standard NOC hours are 7am to 5pm CST
RegDate:        2008-12-30
Updated:        2020-12-08
OrgAdminHandle: DNA51-ARIN
OrgTechHandle:  DNA51-ARIN
OrgAbuseHandle: DNA51-ARIN
Source:         ARIN


POCHandle:      DNA51-ARIN
IsRole:         Y
LastName:       Data Networks Admin
FirstName:      
Street:         4902 North Biltmore Lane
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53718
RegDate:        2008-12-29
Updated:        2025-02-14
OfficePhone:    +1-608-458-4357
Mailbox:        DL_IT_Data_Network-ALI@alliantenergy.com
Mailbox:        dl_its_telecom_networks@alliantenergy.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 207.71.0.0/16

Range	ASN	Company	Num of IPs
207.71.0.0/18	AS3356	Level 3 Parent, LLC	16,384
207.71.0.0/18	AS3549	Level 3 Parent, LLC	16,384
207.71.192.0/18	AS4927	Aseva LLC	16,384
207.71.64.0/18	AS2914	NTT America, Inc.	16,384
207.71.20.0/22	AS3356	World Net	1,024
207.71.12.0/23	AS11667	Westel, Inc.	512
207.71.14.0/23	AS26995	TeleNetwork	512
207.71.54.0/24	AS26831	Cameron Communications, LLC	256
207.71.32.0/24	AS13993	Motive	256
207.71.40.0/24	AS54050	Government Personnel Mutual Life Insurance	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
207.71.129.6	smarti.in	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
81.186.99.23	AS8248 Computer Technology Institute and Press Diophantus	`11.96ms` from Athens, GR
76.223.103.247	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
35.194.128.247	AS396982 Google LLC	`0.16ms` from Chang-hua, TW
35.188.180.151	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
20.217.132.135	AS8075 Microsoft Corporation	`0.17ms` from Modiin Ilit, IL
103.252.4.215	AS132996 Threesa Infoway Pvt.Ltd.	`0.34ms` from Mumbai, IN
189.254.37.119	AS8151 UNINET	`4.52ms` from Santiago de Queretaro, MX
78.62.169.215	AS8764 Telia Lietuva, AB	`2.63ms` from Siauliai, LT
23.40.125.151	AS1299 Arelion Sweden AB	`0.47ms` from Stockholm, SE
18.183.103.215	AS16509 Amazon.com, Inc.	`1.22ms` from Tokyo, JP
180.252.139.23	AS7713 PT Telekomunikasi Indonesia	`2.18ms` from Jakarta, ID
102.32.63.247	AS327782 Metrofibre Networx	`2.69ms` from Johannesburg, ZA
54.158.254.183	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
13.124.192.135	AS16509 Amazon.com, Inc.	`0.20ms` from Seoul, KR
121.139.27.7	AS4766 Korea Telecom	`1.69ms` from Seoul, KR
27.236.71.55	AS4766 Korea Telecom	`6.58ms` from Seoul, KR
110.12.153.199	AS9318 SK Broadband Co Ltd	`2.48ms` from Seoul, KR
222.138.248.151	AS4837 CHINA UNICOM China169 Backbone	`3.19ms` from Zhengzhou, CN
94.197.119.199	AS206067 Hutchison 3G UK Limited	`8.48ms` from Erith, GB
77.189.146.247	AS6805 Telefonica Germany GmbH & Co.OHG	`2.89ms` from Frankfurt am Main, DE
1.245.218.215	AS9318 SK Broadband Co Ltd	`3.96ms` from Incheon, KR
82.69.101.7	AS13037 Zen Internet Ltd	`1.25ms` from London, GB
46.24.18.151	AS12430 VODAFONE ESPANA S.A.U.	`1.01ms` from Madrid, ES
88.17.118.231	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.07ms` from Madrid, ES
49.193.68.119	AS4804 Microplex PTY LTD	`1.91ms` from Melbourne, AU

Traceroute

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

traceroute -a -n -q1 -f2 -m6 207.71.128.50

traceroute to 207.71.128.50 (207.71.128.50): 6 hops max, 52 byte packets

2 [AS3356] 4.69.214.154 31.661 ms

3 [AS3356] 4.39.191.78 31.992 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Little Rock, US

On January 19th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales