ResearchRouting table, looking glass, RPKI & IRR

207.71.136.0/23 Alliant Energy

Announced by AS21896 Alliant Energy. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 207.71.136.0/23

Prefix
207.71.136.0/23
Origin
AS21896 ALLIANT-ENERGY
RPKI
RPKI not found
Size
512 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 3 covering
In RouteViews
2026-10-12 08:02 UTC
Paths

How 207.71.136.0/23 is reached

Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 393238 21896
OriginAS21896 Alliant Energy
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001 393238:3000:216008
Updated20h 52m ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 393238 21896
OriginAS21896 Alliant Energy
Origin codeIGP
Communities903:900 903:13760
Updated20h 52m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 393238 21896
OriginAS21896 Alliant Energy
Origin codeIGP
Communities36295:100
Updated20h 53m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 393238 21896
OriginAS21896 Alliant Energy
Origin codeIGP
Communities174:21001 174:22013 393238:3000:216008
Updated20h 52m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 393238 21896
OriginAS21896 Alliant Energy
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174 393238:3000:216008
Updated20h 53m ago
RPKI

Route origin authorizations

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
207.71.136.0/23AS21896 ALLIANT-ENERGYARINAlliant Energy Cedar RapidsMNT-ALLIA-101
207.71.136.0/23AS21896 ALLIANT-ENERGYRADBCHTR-ALLIANT ENERGY-NortheastMAINT-CHTR-WD
207.71.128.0/19 coveringAS21896 ALLIANT-ENERGYARINAlliant Energy Cedar RapidsMNT-ALLIA-101
207.71.128.0/19 coveringAS21896 ALLIANT-ENERGYRADBAlliant Energy ALLIA-101 4902 North Biltmore Lane Madison WI 53707-1007MAINT-CHTR-WD
207.71.128.0/19 coveringAS393238 IMONCRADBIMONCOMMMAINT-AS393238
Tools

Check 207.71.136.0/23 live

Looking glassIP to ASN APIRPKI APIIRR API