207.71.142.0/23

AS21896 · Alliant Energy

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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 are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
35.90.165.103	AS16509 Amazon.com, Inc.	`0.26ms` from Boardman, US
34.219.216.119	AS16509 Amazon.com, Inc.	`0.55ms` from Boardman, US
41.65.107.55	AS36992 ETISALAT MISR	`11.08ms` from Cairo, EG
212.211.215.215	AS12399 q.beyond AG	`0.61ms` from Frankfurt am Main, DE
119.220.220.199	AS4766 Korea Telecom	`3.87ms` from Incheon, KR
42.242.79.135	AS4134 CHINANET-BACKBONE	`6.46ms` from Kunming, CN
90.215.91.167	AS5607 Sky UK Limited	`4.31ms` from London, GB
15.206.212.215	AS16509 Amazon.com, Inc.	`0.34ms` from Mumbai, IN
115.30.145.103	AS7522 STNet, Incorporated	`7.57ms` from Osaka, JP
73.53.11.151	AS7922 Comcast Cable Communications, LLC	`7.46ms` from Seattle, US
114.39.18.7	AS3462 Data Communication Business Group	`4.40ms` from Taichung, TW
70.31.64.23	AS577 Bell Canada	`4.08ms` from Toronto, CA
197.30.216.215	AS37492 Orange Tunisie	`14.64ms` from Tunis, TN
40.76.14.183	AS8075 Microsoft Corporation	`0.40ms` from Ashburn, US
76.133.111.23	AS7922 Comcast Cable Communications, LLC	`2.18ms` from Fremont, US
189.168.114.87	AS8151 UNINET	`5.14ms` from Guadalajara, MX
109.86.1.247	AS13188 CONTENT DELIVERY NETWORK LTD	`0.90ms` from Kharkiv, UA
93.217.237.71	AS3320 Deutsche Telekom AG	`5.68ms` from Nuernberg, DE
86.219.78.215	AS3215 Orange S.A.	`8.87ms` from Paris, FR
204.134.192.103	AS209 CenturyLink Communications, LLC	`2.68ms` from Philadelphia, US
86.38.203.231	AS47583 Hostinger International Limited	`0.80ms` from Phoenix, US
73.164.228.103	AS7922 Comcast Cable Communications, LLC	`3.41ms` from Portland, US
74.248.102.119	AS8075 Microsoft Corporation	`1.04ms` from Warsaw, PL
108.236.184.215	AS7018 AT&T Enterprises, LLC	`7.56ms` from Atlanta, US
3.75.180.215	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m5 207.71.143.22

traceroute to 207.71.143.22 (207.71.143.22): 5 hops max, 52 byte packets

1 [AS31898] 140.91.242.23 0.08 ms

2 [AS15802] 91.74.125.170 0.465 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Abu Dhabi, AE

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.

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