ResearchRouting table, looking glass, RPKI & IRR

186.0.136.0/21 NORTECH

Announced by AS52251 NORTECH. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 186.0.136.0/21

Prefix
186.0.136.0/21
Origin
AS52251 AS52251
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
12
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-13 04:03 UTC
Paths

How 186.0.136.0/21 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 13760 7195 52251×4
OriginAS52251 NORTECH
Origin codeIGP
Communities13760:3002 36601:150 36601:2001 36601:13760 7195:54:0 7195:52605:52605 7195:5000000:0 63221:0:262589
Updated5d 3h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7195 52251×4
OriginAS52251 NORTECH
Origin codeIGP
Communities903:900 903:13760
Updated5d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 52251
OriginAS52251 NORTECH
Origin codeIGP
Communities36295:100
Updated5d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 52251
OriginAS52251 NORTECH
Origin codeIGP
Communitiesnone
Updated5d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 7195 52251×4
OriginAS52251 NORTECH
Origin codeIGP
Communities174:21301 174:22050 36295:100 36295:174 7195:54:0 7195:52605:52605 7195:5000000:0
Updated9d 4h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS52251 to originate 186.0.136.0/21 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
186.0.136.0/21/24AS52251 AS52251LACNIC
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
186.0.136.0/21AS52251 AS52251LACNICLACNIC generated route for NORTECHMNT-AR-NORT2-LACNIC
186.0.136.0/21AS28513 AS28513LEVEL3TELMEX_ARGENTINA_NORTECHTELMEX-MNT
186.0.136.0/21AS52251 AS52251RADBAlterplan Solutions SRLMAINT-AS18747
More specific

Prefixes inside 186.0.136.0/21

12 announced prefixes fall inside this one.

Show the 12 prefixes
186.0.136.0/23 AS52251 AS52251186.0.136.0/24 AS52251 AS52251186.0.137.0/24 AS52251 AS52251186.0.138.0/23 AS52251 AS52251186.0.138.0/24 AS52251 AS52251186.0.139.0/24 AS52251 AS52251186.0.140.0/23 AS52251 AS52251186.0.140.0/24 AS52251 AS52251186.0.141.0/24 AS52251 AS52251186.0.142.0/23 AS52251 AS52251186.0.142.0/24 AS52251 AS52251186.0.143.0/24 AS52251 AS52251
Tools

Check 186.0.136.0/21 live

Looking glassIP to ASN APIRPKI APIIRR API