207.71.134.0/23

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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Pingable IPs

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

IP Address	ASN	Details
207.71.135.253	AS21896 Alliant Energy	`1.99ms` 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
123.127.40.215	AS4808 China Unicom Beijing Province Network	`2.90ms` from Beijing, CN
14.185.218.103	AS45899 VNPT Corp	`5.37ms` from Da Nang, VN
76.130.207.7	AS7922 Comcast Cable Communications, LLC	`3.33ms` from Denver, US
129.206.155.135	AS553 BelWue-Koordination	`3.75ms` from Frankfurt am Main, DE
135.116.252.247	AS8075 Microsoft Corporation	`0.21ms` from Gaevle, SE
60.242.228.55	AS7545 TPG Telecom Limited	`10.51ms` from Melbourne, AU
110.72.112.71	AS4837 CHINA UNICOM China169 Backbone	`3.93ms` from Nanning, CN
133.155.208.39	AS7524 ITEC HANKYU HANSHIN CO.,LTD.	`1.47ms` from Osaka, JP
108.36.244.7	AS701 Verizon Business	`1.52ms` from Philadelphia, US
187.153.213.167	AS8151 UNINET	`8.04ms` from Santiago de Queretaro, MX
118.35.140.7	AS4766 Korea Telecom	`7.32ms` from Seoul, KR
49.176.51.119	AS4804 Microplex PTY LTD	`7.60ms` from Sydney, AU
88.118.206.103	AS8764 Telia Lietuva, AB	`2.87ms` from Vilnius, LT
86.99.9.151	AS5384 Emirates Internet	`1.95ms` from Al Fujairah City, AE
41.239.86.119	AS8452 TE-AS	`7.90ms` from Cairo, EG
82.113.132.23	AS30827 Extraordinary Managed Services Ltd	`6.78ms` from Chester, GB
98.255.243.39	AS7922 Comcast Cable Communications, LLC	`12.10ms` from Fremont, US
34.73.201.167	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
91.158.194.87	AS719 Elisa Oyj	`6.41ms` from Oulu, FI
90.177.46.7	AS5610 O2 Czech Republic, a.s.	`7.81ms` from Prague, CZ
150.138.174.183	AS58541 Qingdao,266000	`1.72ms` from Qingdao, CN
64.180.89.7	AS852 TELUS Communications Inc.	`3.76ms` from Seattle, US
219.248.108.215	AS9318 SK Broadband Co Ltd	`1.92ms` from Seoul, KR
34.126.71.39	AS396982 Google LLC	`0.14ms` from Singapore, SG
116.132.247.55	AS4837 CHINA UNICOM China169 Backbone	`9.44ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -f3 207.71.135.253

traceroute to 207.71.135.253 (207.71.135.253): 64 hops max, 52 byte packets

3 [AS3356] 4.69.214.154 1.473 ms

4 [AS3356] 4.39.191.78 1.809 ms

5 [AS21896] 207.71.135.253 2.016 ms

Measurement taken from

IPinfo ProbeNet in Monticello, US

On January 18th 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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