Home
/
ASN directory
/
AS12076
AS12076 Microsoft Corporation
MICROSOFT - Microsoft Corporation · registered in the United States
IPv4 addresses 2,048 1 prefixes · <0.001% of announced IPv4
Rank in United States #6,088 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #22,586 of 79,396 networks with IPv4
IPv6 6 x /48 4 prefixes
IPv4 prefixes
All 1 prefix, in address order.
IPv6 prefixes
All 4 prefixes.
2608:1c1::/47 2608:1c1:4::/48 2608:1c1:6::/47 2608:1c1:8::/48
Other ASNs named Microsoft Corporation
11 other networks use the same organisation name; together with AS12076 they announce 82,657,024 IPv4 addresses.
ASN Name IPv4 addresses
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US 80,749,056 AS8070 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US 1,073,920 AS3598 MICROSOFT-CORP-AS - Microsoft Corporation US 531,200 AS8069 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US 285,184 AS8068 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US 9,984 AS54396 NUANCE-MOBILITY - Microsoft Corporation US 2,048 AS46182 VAROLII - Microsoft Corporation US 1,536 AS17144 NUANCE-NOD - Microsoft Corporation US 1,024 AS63314 MSFT - Microsoft Corporation US 768 AS5761 MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation US 256 AS6584 MICROSOFT-GP-AS - Microsoft Corporation US IPv6 only
Similar-sized networks in United States
ASN Name IPv4 addresses
AS19586 #6085 FIRST-CITY-INTERNET - First City Internet, LLC2,048 AS55079 #6086 STELLANET - Third Gear Networks2,048 AS19557 #6087 CHANGEIP-01 - CHANGEIP COM2,048 AS27647 #6090 WEEBLY - Weebly, Inc.2,048 AS22296 #6091 VORSK - Vorsk LLC2,048
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources