ResearchRouting table, looking glass, RPKI & IRR

37.63.0.0/17 A1 Bulgaria EAD

Announced by AS8717 A1 Bulgaria EAD. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 37.63.0.0/17

Prefix
37.63.0.0/17
Origin
AS8717 A1BG
RPKI
RPKI valid
Size
32,768 addresses
Less specific
none
More specifics
94
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 04:03 UTC
Paths

How 37.63.0.0/17 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 3356 8717
OriginAS8717 A1 Bulgaria EAD
Origin codeIGP
Communities3356:2 3356:22 3356:100 3356:123 3356:514 3356:901 3356:2087 36601:150 36601:2001 36601:13760
Updated4d 3h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 8717
OriginAS8717 A1 Bulgaria EAD
Origin codeIGP
Communities903:900 903:13760
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 8717
OriginAS8717 A1 Bulgaria EAD
Origin codeIGP
Communities36295:100
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 8717
OriginAS8717 A1 Bulgaria EAD
Origin codeIGP
Communitiesnone
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 1299 8717
OriginAS8717 A1 Bulgaria EAD
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated8d 5h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS8717 to originate 37.63.0.0/17 up to /17. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
37.63.0.0/17/17AS8717 A1BGRIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
37.63.0.0/17AS8717 A1BGRIPESpectrum Net JscSPNET-MNT
More specific

Prefixes inside 37.63.0.0/17

94 announced prefixes fall inside this one.

Show the 94 prefixes
37.63.0.0/20 AS12716 A1BG_MB37.63.16.0/22 AS12716 A1BG_MB37.63.20.0/22 AS12716 A1BG_MB37.63.24.0/22 AS12716 A1BG_MB37.63.28.0/22 AS12716 A1BG_MB37.63.32.0/22 AS12716 A1BG_MB37.63.36.0/24 AS29580 A1BG_RSG37.63.37.0/24 AS29580 A1BG_RSG37.63.38.0/24 AS29580 A1BG_RSG37.63.39.0/24 AS29580 A1BG_RSG37.63.40.0/24 AS29580 A1BG_RSG37.63.41.0/24 AS29580 A1BG_RSG37.63.42.0/24 AS29580 A1BG_RSG37.63.43.0/24 AS29580 A1BG_RSG37.63.44.0/24 AS29580 A1BG_RSG37.63.45.0/24 AS29580 A1BG_RSG37.63.46.0/24 AS29580 A1BG_RSG37.63.47.0/24 AS29580 A1BG_RSG37.63.48.0/24 AS29580 A1BG_RSG37.63.49.0/24 AS29580 A1BG_RSG37.63.50.0/24 AS29580 A1BG_RSG37.63.51.0/24 AS29580 A1BG_RSG37.63.52.0/24 AS29580 A1BG_RSG37.63.53.0/24 AS29580 A1BG_RSG37.63.54.0/24 AS29580 A1BG_RSG37.63.55.0/24 AS29580 A1BG_RSG37.63.56.0/24 AS29580 A1BG_RSG37.63.57.0/24 AS29580 A1BG_RSG37.63.58.0/24 AS29580 A1BG_RSG37.63.59.0/24 AS29580 A1BG_RSG37.63.60.0/24 AS29580 A1BG_RSG37.63.61.0/24 AS29580 A1BG_RSG37.63.62.0/24 AS29580 A1BG_RSG37.63.63.0/24 AS29580 A1BG_RSG37.63.64.0/24 AS29580 A1BG_RSG37.63.65.0/24 AS29580 A1BG_RSG37.63.66.0/24 AS29580 A1BG_RSG37.63.67.0/24 AS29580 A1BG_RSG37.63.68.0/24 AS29580 A1BG_RSG37.63.69.0/24 AS29580 A1BG_RSG37.63.70.0/24 AS29580 A1BG_RSG37.63.71.0/24 AS29580 A1BG_RSG37.63.72.0/24 AS29580 A1BG_RSG37.63.73.0/24 AS29580 A1BG_RSG37.63.74.0/24 AS29580 A1BG_RSG37.63.75.0/24 AS29580 A1BG_RSG37.63.76.0/24 AS29580 A1BG_RSG37.63.77.0/24 AS29580 A1BG_RSG37.63.78.0/24 AS29580 A1BG_RSG37.63.79.0/24 AS200723 SWU-BG-AS37.63.80.0/24 AS29580 A1BG_RSG37.63.81.0/24 AS29580 A1BG_RSG37.63.82.0/24 AS29580 A1BG_RSG37.63.83.0/24 AS29580 A1BG_RSG37.63.84.0/24 AS29580 A1BG_RSG37.63.85.0/24 AS29580 A1BG_RSG37.63.86.0/24 AS29580 A1BG_RSG37.63.87.0/24 AS29580 A1BG_RSG37.63.88.0/24 AS29580 A1BG_RSG37.63.89.0/24 AS29580 A1BG_RSG37.63.90.0/24 AS29580 A1BG_RSG37.63.91.0/24 AS29580 A1BG_RSG37.63.92.0/24 AS29580 A1BG_RSG37.63.93.0/24 AS29580 A1BG_RSG37.63.94.0/24 AS29580 A1BG_RSG37.63.95.0/24 AS29580 A1BG_RSG37.63.96.0/22 AS12716 A1BG_MB37.63.100.0/24 AS29580 A1BG_RSG37.63.101.0/24 AS29580 A1BG_RSG37.63.102.0/24 AS29580 A1BG_RSG37.63.103.0/24 AS29580 A1BG_RSG37.63.104.0/24 AS29580 A1BG_RSG37.63.105.0/24 AS29580 A1BG_RSG37.63.106.0/24 AS29580 A1BG_RSG37.63.107.0/24 AS29580 A1BG_RSG37.63.108.0/24 AS29580 A1BG_RSG37.63.109.0/24 AS29580 A1BG_RSG37.63.110.0/24 AS29580 A1BG_RSG37.63.111.0/24 AS29580 A1BG_RSG37.63.112.0/24 AS29580 A1BG_RSG37.63.113.0/24 AS29580 A1BG_RSG37.63.114.0/23 AS29580 A1BG_RSG37.63.116.0/24 AS29580 A1BG_RSG37.63.117.0/24 AS29580 A1BG_RSG37.63.118.0/24 AS29580 A1BG_RSG37.63.119.0/24 AS29580 A1BG_RSG37.63.120.0/24 AS29580 A1BG_RSG37.63.121.0/24 AS29580 A1BG_RSG37.63.122.0/24 AS29580 A1BG_RSG37.63.123.0/24 AS29580 A1BG_RSG37.63.124.0/24 AS29580 A1BG_RSG37.63.125.0/24 AS29580 A1BG_RSG37.63.126.0/24 AS29580 A1BG_RSG37.63.127.0/24 AS29580 A1BG_RSG
Tools

Check 37.63.0.0/17 live

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