AS3598 is the autonomous system of Microsoft Corporation. It holds 531,200 IPv4 addresses in 27 prefixes plus 6 IPv6 ranges, mainly in 
United States.
By IPv4 addresses the network ranks #534 worldwide and #145 of 18,202 networks in United States. That is 0.04% of the country’s IPv4 space.
The network spreads across six or more countries: United States 53%, Canada 43%, Ireland 2.3%.
The largest block is 157.58.217.0 to 157.60.255.255 with 141,056 addresses, geolocated to Cheyenne.
- IPv4 addresses
- 531,200
- IPv4 prefixes
- 27
- World rank
- #534
- Country share
- 0.04%
- IPv6 ranges
- 6
Addresses by country
- United States 53%
Canada 43%
Ireland 2.3%
Singapore 0.70%
United Kingdom 0.39%
Israel 0.19%
Largest blocks
- 157.58.217.0 Cheyenne141,056
- 157.57.0.0 Toronto120,832
- 157.54.0.0 Seattle65,536
- 131.107.0.0 Redmond (Overlake)65,536
- 65.53.0.0 Seattle65,536
- 167.220.0.0 Redmond57,856
- 194.69.106.0 Dublin5,632
- 167.220.228.0 Singapore4,096
Networks of similar size
- AS16735 ALGAR TELECOM S/A
538,624 - AS19994 Rackspace Hosting537,088
- AS37154 Zambia Telecommunications Company Ltd aka ZAMTEL
533,760 - AS132839 POWER LINE (HK) CO., LIMITED
532,224 - AS24139 Huashu media&Network Limited
530,432 - AS18101 Reliance Communications Limited
530,176 - AS7726 FedEx Internet Technologies Corporation530,176
- AS206067 Hutchison 3G UK Limited529,152
IPv4 prefixes
- 65.53.0.0/16
- 131.107.0.0/16
- 157.54.0.0/16
- 157.57.0.0/16
- 157.58.0.0/17
- 157.58.128.0/18
- 157.58.192.0/20
- 157.58.208.0/21
- 157.58.217.0/24
- 157.58.218.0/23
- 157.58.220.0/22
- 157.58.224.0/19
- 157.59.0.0/16
- 157.60.0.0/16
- 167.220.0.0/17
- 167.220.128.0/18
- 167.220.192.0/19
- 167.220.224.0/23
- 167.220.228.0/22
- 167.220.232.0/21
- 167.220.240.0/22
- 167.220.248.0/21
- 194.69.96.0/21
- 194.69.106.0/23
- 194.69.108.0/22
- 194.69.112.0/20
- 198.105.232.0/22
Questions and answers
Who owns AS3598?
Autonomous system AS3598 is operated by Microsoft Corporation.
How many IP addresses does AS3598 have?
The network holds 531,200 IPv4 addresses in 27 prefixes, plus 6 IPv6 ranges.
Which country is AS3598 in?
The main country is United States, with addresses in 5 more countries.
How big is AS3598?
By IPv4 addresses it ranks #534 worldwide.
What is the largest address block of AS3598?
157.58.217.0 to 157.60.255.255, 141,056 addresses.