209.166.0.0/18 GTT Communications Inc.
Announced by AS3257 GTT Communications Inc. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 209.166.0.0/18
Prefix
Origin
AS3257 GTT-BACKBONE
RPKI
RPKI not found
Size
16,384 addresses
Less specific
none
More specifics
32
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 04:03 UTC
Paths
How 209.166.0.0/18 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 3257
| Origin | AS3257 GTT Communications Inc. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 3h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 3257
| Origin | AS3257 GTT Communications Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 11h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1299 3257
| Origin | AS3257 GTT Communications Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 11h 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.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 209.166.0.0/18 | AS3257 GTT-BACKBONE | RADB | GTT | MAINT-AS3257 |
More specific
Prefixes inside 209.166.0.0/18
32 announced prefixes fall inside this one.
Show the 32 prefixes
209.166.0.0/23 AS3320 DTAG209.166.2.0/23 AS3320 DTAG209.166.4.0/23 AS30058 FDCSERVERS209.166.6.0/23 AS3320 DTAG209.166.8.0/23 AS55470 CYFUTURE-AS-IN209.166.10.0/23 AS3320 DTAG209.166.12.0/23 AS9009 M247209.166.14.0/23 AS55470 CYFUTURE-AS-IN209.166.16.0/23 AS3320 DTAG209.166.18.0/23 AS3320 DTAG209.166.20.0/23 AS3320 DTAG209.166.22.0/23 AS3320 DTAG209.166.24.0/23 AS3320 DTAG209.166.26.0/23 AS3320 DTAG209.166.28.0/23 AS3320 DTAG209.166.30.0/23 AS9009 M247209.166.32.0/24 AS6079 RCN-AS209.166.33.0/24 AS6079 RCN-AS209.166.34.0/24 AS6079 RCN-AS209.166.35.0/24 AS6079 RCN-AS209.166.36.0/24 AS6079 RCN-AS209.166.37.0/24 AS6079 RCN-AS209.166.38.0/24 AS6079 RCN-AS209.166.39.0/24 AS6079 RCN-AS209.166.40.0/24 AS2914 NTT-DATA-2914209.166.41.0/24 AS2914 NTT-DATA-2914209.166.42.0/24 AS401783 TOKALA-COMMUNICATIONS209.166.43.0/24 AS2914 NTT-DATA-2914209.166.44.0/24 AS2914 NTT-DATA-2914209.166.45.0/24 AS2914 NTT-DATA-2914209.166.46.0/24 AS39600 BUNNY-TECHNOLOGY-LLC209.166.48.0/20 AS20001 TWC-20001-PACWEST