ResearchRouting table, looking glass, RPKI & IRR

47.19.0.0/16 Cablevision Lightpath LLC

Announced by AS54004 Cablevision Lightpath LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 47.19.0.0/16

Prefix
47.19.0.0/16
Origin
AS54004 LIGHTPATH
RPKI
RPKI valid
Size
65,536 addresses
Less specific
47.16.0.0/14 AS6128 CABLE-NET-1
More specifics
29
IRR route objects
1 exact, 2 covering
In RouteViews
2026-10-13 04:03 UTC
Paths

How 47.19.0.0/16 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 6128×2 54004
OriginAS54004 Cablevision Lightpath LLC
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated5d 2h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 6461 6128 54004
OriginAS54004 Cablevision Lightpath LLC
Origin codeIGP
Communities903:900 903:13760
Updated5d 10h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 6128 54004
OriginAS54004 Cablevision Lightpath LLC
Origin codeIGP
Communities36295:100
Updated5d 10h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 6128 54004
OriginAS54004 Cablevision Lightpath LLC
Origin codeIGP
Communitiesnone
Updated5d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 6128×2 54004
OriginAS54004 Cablevision Lightpath LLC
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated9d 4h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS54004 to originate 47.19.0.0/16 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
47.19.0.0/16/24AS54004 LIGHTPATHARIN
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
47.19.0.0/16AS54004 LIGHTPATHARINCablevision Lightpath LLCMNT-CLL-174
47.18.0.0/15 coveringAS762 WELLFLEET-ASLEVEL3BayNetworks NortelNetworks 4401 Great American Parkway Santa Clara, CANN-AS762-MNT
47.16.0.0/14 coveringAS762 WELLFLEET-ASLEVEL3BayNetworks NortelNetworks 4401 Great American Parkway Santa Clara, CANN-AS762-MNT
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

47.16.0.0/14 AS6128 CABLE-NET-1
More specific

Prefixes inside 47.19.0.0/16

29 announced prefixes fall inside this one.

Show the 29 prefixes
47.19.2.0/24 AS54004 LIGHTPATH47.19.19.0/24 AS395117 LIMS47.19.26.0/24 AS46183 MARYANNLIEBERTINC47.19.34.0/24 AS62677 WFASN47.19.51.0/24 AS55052 KMBSU-AS47.19.71.0/24 AS54004 LIGHTPATH47.19.95.0/24 AS19642 CONNEL-FOLEY47.19.98.0/24 AS54004 LIGHTPATH47.19.99.0/24 AS397394 GCBB47.19.102.0/24 AS54004 LIGHTPATH47.19.103.0/24 AS3408 AMC-NETWORKS47.19.104.0/24 AS54004 LIGHTPATH47.19.106.0/24 AS54004 LIGHTPATH47.19.109.0/24 AS33645 ODYSSEYRE47.19.118.0/24 AS25808 CONCORD-MA47.19.120.0/24 AS14822 MSKCC47.19.127.0/24 AS63329 MARCUM-LLP47.19.141.0/24 AS54004 LIGHTPATH47.19.143.0/24 AS1992647.19.151.0/24 AS63397 WILLETT47.19.152.0/24 AS63397 WILLETT47.19.156.0/24 AS63378 JJI47.19.159.0/24 AS54004 LIGHTPATH47.19.191.0/24 AS32696 TVD-EDISON-77747.19.199.0/24 AS54004 LIGHTPATH47.19.204.0/23 AS54004 LIGHTPATH47.19.209.0/24 AS62802 MST-JCMAIN47.19.219.0/24 AS53482 MKMG47.19.254.0/24 AS394817 THE-SALVATION-ARMY-USE
Tools

Check 47.19.0.0/16 live

Looking glassIP to ASN APIRPKI APIIRR API