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	Impulse Internet Services	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
4.231.60.103	AS8075 Microsoft Corporation	`1.25ms` from Amsterdam, NL
108.48.187.215	AS701 Verizon Business	`2.12ms` from Ashburn, US
99.82.214.23	AS7018 AT&T Enterprises, LLC	`13.40ms` from Atlanta, US
18.153.102.135	AS16509 Amazon.com, Inc.	`0.47ms` from Frankfurt am Main, DE
78.82.24.199	AS2119 Telenor Norge AS	`1.12ms` from Goeteborg, SE
116.105.18.199	AS24086 Viettel Corporation	`9.93ms` from Hanoi, VN
20.255.223.55	AS8075 Microsoft Corporation	`0.28ms` from Hong Kong, HK
89.7.8.119	AS12430 VODAFONE ESPANA S.A.U.	`9.49ms` from Madrid, ES
201.28.225.119	AS10429 TELEFÔNICA BRASIL S.A	`0.63ms` from Osasco, BR
112.255.51.215	AS4837 CHINA UNICOM China169 Backbone	`1.21ms` from Qingdao, CN
61.87.239.151	AS9812 Oriental Cable Network Co., Ltd.	`6.74ms` from Shanghai, CN
14.192.75.7	AS58460 Digicel (PNG) Ltd	`8.70ms` from Sydney, AU
1.173.149.55	AS3462 Data Communication Business Group	`4.49ms` from Taichung, TW
79.182.138.199	AS8551 Bezeq International Ltd.	`3.07ms` from Tel Aviv, IL
51.83.217.87	AS16276 OVH SAS	`0.14ms` from Warsaw, PL
61.49.241.7	AS4808 China Unicom Beijing Province Network	`3.73ms` from Beijing, CN
76.141.16.55	AS7922 Comcast Cable Communications, LLC	`5.55ms` from Chicago, US
71.136.187.39	AS7018 AT&T Enterprises, LLC	`2.04ms` from Dallas, US
109.59.234.71	AS44034 Hi3G Access AB	`8.42ms` from Falkenberg, SE
193.185.24.151	AS719 Elisa Oyj	`17.57ms` from Helsinki, FI
116.102.83.167	AS24086 Viettel Corporation	`0.78ms` from Ho Chi Minh City, VN
79.165.232.247	AS8615 "Central Telegraph" Public Joint-stock Company	`1.86ms` from Moscow, RU
35.169.214.215	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
192.126.156.199	AS397731 EliteWork LLC	`1.06ms` from Seattle, US
103.13.70.7	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.36ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -f5 -m9 207.71.143.114

traceroute to 207.71.143.114 (207.71.143.114): 9 hops max, 52 byte packets

5 [AS3356] 4.69.214.154 141.716 ms

6 [AS3356] 4.39.191.78 142.066 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Saint Petersburg, RU

On September 11th 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.

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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