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AS8070 Microsoft Corporation

MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation · registered in the United States

IPv4 addresses1,073,92028 prefixes · 0.034% of announced IPv4
Rank in United States#97largest network in US by IPv4 space, of 18,338 · 0.08% of US
Rank worldwide#342of 79,396 networks with IPv4
IPv617,929 x /4812 prefixes
CountryUnited States18,679 ASNs registered there
Open AS8070 in ASN lookup Look up an IP in this network (20.34.0.1) All networks in United States

IPv4 prefixes

All 28 prefixes, in address order.

  • 20.34.0.0/15
  • 20.140.0.0/15
  • 20.158.0.0/15
  • 51.54.0.0/15
  • 52.126.0.0/15
  • 57.16.0.0/14
  • 62.10.0.0/15
  • 64.40.141.0/24
  • 97.107.239.0/24
  • 131.253.72.0/22
  • 131.253.80.0/20
  • 131.253.112.0/21
  • 131.253.120.0/22
  • 137.70.156.0/24
  • 137.70.158.0/24
  • 152.228.48.0/23
  • 165.159.132.0/22
  • 165.159.136.0/22
  • 165.159.188.0/22
  • 170.85.197.0/24
  • 170.85.198.0/24
  • 195.134.224.0/19
  • 199.15.136.0/23
  • 199.15.138.0/24
  • 199.34.97.0/24
  • 204.13.120.0/21
  • 206.41.48.0/24
  • 208.68.130.0/23

IPv6 prefixes

All 12 prefixes.

  • 2001:489a:2000::/35
  • 2001:489a:4000::/35
  • 2601:9200:c001::/48
  • 2601:9200:c003::/48
  • 2601:9200:c004::/48
  • 2603:1063:300::/40
  • 2603:1063:2100::/40
  • 2603:1063:7c00::/38
  • 2605:4300:3601::/48
  • 2606:e540:c02::/47
  • 2607:9240::/47
  • 2607:9240:2::/48

Other ASNs named Microsoft Corporation

11 other networks use the same organisation name; together with AS8070 they announce 82,657,024 IPv4 addresses.

ASNNameIPv4 addresses
AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US80,749,056
AS3598MICROSOFT-CORP-AS - Microsoft Corporation US531,200
AS8069MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US285,184
AS8068MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation US9,984
AS12076MICROSOFT - Microsoft Corporation US2,048
AS54396NUANCE-MOBILITY - Microsoft Corporation US2,048
AS46182VAROLII - Microsoft Corporation US1,536
AS17144NUANCE-NOD - Microsoft Corporation US1,024
AS63314MSFT - Microsoft Corporation US768
AS5761MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation US256
AS6584MICROSOFT-GP-AS - Microsoft Corporation USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses
AS5006#94 VOYANT - Inteliquent, inc.1,123,328
AS22284#95 AS22284-DOI-OPS - U.S. Department of the Interior1,086,720
AS22909#96 COMCAST-22909 - Comcast Cable Communications, LLC1,075,968
AS11776#98 ATLANTICBB-JOHNSTOWN - Breezeline1,053,696
AS46690#99 SNET-FCC - Southern New England Telephone Company and SNET America, Inc.1,049,088
AS1226#100 CTA-42-AS1226 - California Department of Technology1,037,056

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