Network · data from 2026-11-12
AS12076 Microsoft Corporation (AS12076)
Registry name: MICROSOFT - Microsoft Corporation, US · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS12076, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 2608:1c1:1::/48 | No ROA | None | 631 99% |
| 2608:1c1:6::/48 | No ROA | None | 631 99% |
| 2608:1c1:7::/48 | No ROA | None | 631 99% |
| 2608:1c1:8::/48 | No ROA | None | 631 99% |
| 2608:1c1::/48 | No ROA | None | 630 99% |
| 2608:1c1:4::/48 | No ROA | None | 629 99% |
| 151.207.40.0/22 | Valid | RIR databaseARIN | 666 99% |
| 151.207.44.0/22 | Valid | RIR databaseARIN | 666 99% |
| 204.193.239.0/24 | Valid | RIR databaseARIN | 666 99% |
| 204.193.240.0/24 | Valid | RIR databaseARIN | 666 99% |
AS-SET
AS12076's PeeringDB record names no AS-SET.
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 19 are in fix.csv.
- ROA: none6
- Route object: none6
- Route object: not announced7
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 2608:1c1:1::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1:1::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
| ROA: none | 2608:1c1:6::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1:6::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
| ROA: none | 2608:1c1:7::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1:7::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
| ROA: none | 2608:1c1:8::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1:8::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
| ROA: none | 2608:1c1::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
| ROA: none | 2608:1c1:4::/48 | No ROA covers it. Add a ROA for AS12076, maxLength 48. |
| Route object: none | 2608:1c1:4::/48 | No route object for it. Add a route object with origin AS12076 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS12076 whose prefix no peer sees AS12076 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 103.126.16.0/24 | APNIC | No ROA |
| 103.126.17.0/24 | APNIC | No ROA |
| 103.126.18.0/24 | APNIC | No ROA |
| 103.126.19.0/24 | APNIC | No ROA |
| 104.193.126.0/24 | ARIN | Valid |
| 170.110.229.0/24 | ARIN | Valid |
| 202.36.34.0/24 | APNIC | Valid |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.