207.71.136.0/23

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

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

IP Address	ASN	Details
207.71.136.253	AS21896 Alliant Energy	`2.00ms` from Monticello, 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
20.237.98.167	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
181.10.78.183	AS7303 Telecom Argentina S.A.	`16.34ms` from Buenos Aires, AR
84.238.108.247	AS33796 BOLIGNET-AARHUS F.M.B.A.	`1.13ms` from Copenhagen, DK
68.58.194.167	AS7922 Comcast Cable Communications, LLC	`8.10ms` from Flint, US
91.20.172.199	AS3320 Deutsche Telekom AG	`2.24ms` from Frankfurt am Main, DE
80.192.83.167	AS5089 Virgin Media Limited	`7.92ms` from London, GB
82.42.106.247	AS5089 Virgin Media Limited	`13.60ms` from London, GB
41.218.112.231	AS33763 Paratus Telecommunications Limited	`0.44ms` from Luanda, AO
16.50.114.167	AS16509 Amazon.com, Inc.	`0.73ms` from Melbourne, AU
190.197.117.23	AS10269 Belize Telemedia Limited	`18.39ms` from Miami, US
79.26.225.7	AS3269 Telecom Italia S.p.A.	`9.37ms` from Milan, IT
178.215.144.55	AS56426 VOLNA-SERVIS LLC	`5.82ms` from Moscow, RU
111.68.16.87	AS63997 Tsukaeru.net, Web Hosting Company, Japan	`0.19ms` from Nagano, JP
166.1.227.103	AS55286 B2 Net Solutions Inc.	`0.70ms` from New York City, US
126.59.139.183	AS17676 SoftBank Corp.	`2.70ms` from Osaka, JP
181.189.114.23	AS271533 COMNETFIBRA COMERCIALIZAÇÃO DE INTERNET	`1.96ms` from Osasco, BR
82.120.138.247	AS3215 Orange S.A.	`13.98ms` from Paris, FR
44.253.169.231	AS16509 Amazon.com, Inc.	`4.55ms` from Portland, US
52.148.144.183	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
74.120.12.231	AS13722 Default Route, LLC	`0.48ms` from Seattle, US
43.166.9.39	AS132203 Tencent Building, Kejizhongyi Avenue	`1.01ms` from Seoul, KR
49.23.237.23	AS4766 Korea Telecom	`1.78ms` from Seoul, KR
179.172.147.119	AS26599 TELEFÔNICA BRASIL S.A	`16.03ms` from São Paulo, BR
118.160.134.55	AS3462 Data Communication Business Group	`2.31ms` from Taipei, TW
222.155.201.119	AS4771 Spark New Zealand Trading Ltd.	`6.20ms` from Auckland, NZ

Traceroute

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

traceroute -a -n -q1 -m5 207.71.137.34

traceroute to 207.71.137.34 (207.71.137.34): 5 hops max, 52 byte packets

1 [AS39798] 5.252.178.1 0.777 ms

2 [AS6939] 216.66.82.41 5.961 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Iasi, RO

On September 11th 2025

What are IP address ranges?

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