2603:1000::/25 Microsoft Corporation
Announced by AS8075 Microsoft Corporation. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 2603:1000::/25
Prefix
Origin
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK
RPKI
RPKI valid
Size
549,755,813,888 /64s
Less specific
none
More specifics
6
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 08:09 UTC
Paths
How 2603:1000::/25 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 8075
| Origin | AS8075 Microsoft Corporation |
| Origin code | IGP |
| Communities | 13760:3000 36601:150 36601:2001 |
| Updated | 4d 8h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 8075
| Origin | AS8075 Microsoft Corporation |
| Origin code | IGP |
| Communities | 903:13760 |
| Updated | 4d 17h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 8075
| Origin | AS8075 Microsoft Corporation |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 17h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS8075 to originate 2603:1000::/25 up to /25. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 2603:1000::/25 | /25 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK | 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 |
|---|---|---|---|---|
| 2603:1000::/25 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK | RADB | MICROSOFT | MAINT-AS8075 |
More specific
Prefixes inside 2603:1000::/25
6 announced prefixes fall inside this one.
Show the 6 prefixes
2603:1061:6::/48 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK2603:1062:3::/48 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK2603:1062:4::/48 AS8075 MICROSOFT-CORP-MSN-AS-BLOCK2603:1063:300::/40 AS8070 MICROSOFT-CORP-MSN-AS-BLOCK2603:1063:2100::/40 AS8070 MICROSOFT-CORP-MSN-AS-BLOCK2603:1063:7c00::/38 AS8070 MICROSOFT-CORP-MSN-AS-BLOCK