Microsoft
Microsoft Corporation
LEI
967600DJA1Q8K13MZ845
Registered name
Microsoft
Jurisdiction
BE
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks63,061
All fragments 63,160 blocks across 35 clusters
Cluster ID191303329
RegistryAFRINIC
Owner jurisdictionBE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Legal identityLEI 967600DJA1Q8K13MZ845
Shared handles clustered on 100 shared RIR contact/maintainer handles
Registry names 39 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (63,061)

showing 50 of 63,061 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
1.7.247.31/32 Microsoft PEERINGDB ASSIGNED ● high
1.7.247.188/32 Microsoft PEERINGDB ASSIGNED ● high
1.186.0.0/16 Microsoft Corporation BGP ANNOUNCED ● high
2.58.103.0/24 Microsoft Corporation BGP ANNOUNCED ● high
4.144.0.0/17 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.0.0/12 Microsoft Corporation BGP ANNOUNCED ● high
4.144.9.0/26 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.9.64/27 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.10.32/27 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.10.64/26 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.15.72/29 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.32.35/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.51.0/24 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.52.0/25 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.55.88/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.128.0/17 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.200.166/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.201.132/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.203.72/31 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.203.73/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.203.116/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.203.254/31 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.203.255/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.144.204.223/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.0.0/16 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.0.64/29 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.0.80/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.0.106/31 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.0.192/27 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.8.112/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.10.168/29 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.12.240/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.16.28/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.16.48/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.16.144/29 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.16.160/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.16.192/26 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.18.62/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.18.136/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.42/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.43/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.48/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.52/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.64/28 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.80/31 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.19.82/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.20.102/32 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.20.116/30 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.20.120/31 Microsoft Corporation MICROSOFT ANNOUNCED ● high
4.145.21.64/27 Microsoft Corporation MICROSOFT ANNOUNCED ● high

Network trust

what's this?
RPKI hygiene: A how networks compare →
99.9% of checked blocks have valid RPKI ROA coverage (1,998 of 2,000, sampled from 63,061)
Possible discrepancies (1)

These blocks are registered to Microsoft Corporation but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

62.132.26.0/23 /23 authorized for AS1136 — KPN B.V.

NIC Handles

AA1419-AP AB242-AP ACHMEA-NOC-MNT AE131-AP AE150-AP AE198-AP AE278-AP AFRINIC-HM-MNT AG545-AP ALL-MNT AM2589-AP AMENET-MNT +88 more