ResearchRouting table, looking glass, RPKI & IRR

83.208.0.0/18 O2 Czech Republic, a.s.

Announced by AS5610 O2 Czech Republic, a.s. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 83.208.0.0/18

Prefix
83.208.0.0/18
Origin
AS5610 O2-CZECH-REPUBLIC
RPKI
RPKI valid
Size
16,384 addresses
Less specific
83.208.0.0/16 AS5610 O2-CZECH-REPUBLIC
More specifics
0
IRR route objects
2 exact, 1 covering
In RouteViews
2026-10-12 20:02 UTC
Paths

How 83.208.0.0/18 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 5610
OriginAS5610 O2 Czech Republic, a.s.
Origin codeIGP
Communities174:21101 174:22016 36601:150 36601:174 36601:2001
Updated4d 18h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 5610
OriginAS5610 O2 Czech Republic, a.s.
Origin codeIGP
Communities903:900 903:13760
Updated5d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 5610
OriginAS5610 O2 Czech Republic, a.s.
Origin codeIGP
Communities36295:100
Updated5d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 5610
OriginAS5610 O2 Czech Republic, a.s.
Origin codeIGP
Communities174:21101 174:22016
Updated5d 2h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 5610
OriginAS5610 O2 Czech Republic, a.s.
Origin codeIGP
Communities174:21101 174:22016 36295:100 36295:174
Updated8d 20h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS5610 to originate 83.208.0.0/18 up to /18. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
83.208.0.0/18/18AS5610 O2-CZECH-REPUBLICRIPE
83.208.0.0/16/16AS5610 O2-CZECH-REPUBLICRIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
83.208.0.0/18AS5610 O2-CZECH-REPUBLICRADBProxy-registered route objectMAINT-AS3491
83.208.0.0/18AS5610 O2-CZECH-REPUBLICRIPECZ.CZNETAS5610-MTN
83.208.0.0/16 coveringAS5610 O2-CZECH-REPUBLICRIPECZ.CZNETAS5610-MTN
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

83.208.0.0/16 AS5610 O2-CZECH-REPUBLIC
Tools

Check 83.208.0.0/18 live

Looking glassIP to ASN APIRPKI APIIRR API