170.72.80.0/21 Cisco Webex LLC
Announced by AS13445 Cisco Webex LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 170.72.80.0/21
Prefix
Origin
AS13445 WEBEX
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 7 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 170.72.80.0/21 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 3356 2914 13445
| Origin | AS13445 Cisco Webex LLC |
| Origin code | IGP |
| Communities | 2914:410 2914:1405 2914:2406 2914:3400 3356:3 3356:22 3356:86 3356:575 3356:666 3356:901 3356:2013 36601:150 36601:2001 36601:13760 |
| Updated | 4d 12h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2914 13445
| Origin | AS13445 Cisco Webex LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 5h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4637 13445
| Origin | AS13445 Cisco Webex LLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 5h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS13445 to originate 170.72.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 170.72.0.0/16 | /24 | AS13445 WEBEX | ARIN |
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 |
|---|---|---|---|---|
| 170.72.80.0/21 | AS13445 WEBEX | RADB | Webex | MAINT-AS13445 |
| 170.72.80.0/20 covering | AS13445 WEBEX | RADB | Webex | MAINT-AS13445 |
| 170.72.64.0/19 covering | AS21637 SIOUIX | LEVEL3 | add route | VIVINT-MNT |
| 170.72.64.0/19 covering | AS13445 WEBEX | RADB | Webex | MAINT-AS13445 |
| 170.72.0.0/16 covering | AS21637 SIOUIX | LEVEL3 | VIVINT-INTERNET-CUSTOMERS | VIVINT-MNT |
| 170.72.0.0/16 covering | AS33000 IXP-FARM-USA | LEVEL3 | VIVINT-INTERNET-CUSTOMERS | VIVINT-MNT |
| 170.72.0.0/16 covering | AS62864 NILAS | LEVEL3 | VIVINT-INTERNET-CUSTOMERS | VIVINT-MNT |
| 170.72.0.0/16 covering | AS13445 WEBEX | RADB | Webex | MAINT-AS13445 |