Hosting Provider

Microsoft Azure

HostingRank #1 of 2,000

Microsoft Azure is the 1st largest of 2,000 hosting providers by IPv4 space, with 44,164 IPv4 networks (104,599,363 addresses) and 16,901 IPv6 networks. The ipapi.is API marks every address in these ranges as a datacenter address.

IPv4 addresses104,599,363in 44,164 networks

IPv6 networks16,901≈ 1.1 × 10²⁸ addresses

Provider rank#1of 2,000 by IPv4 space

Largest network4.192.0.0/104,194,304 addresses

Details

Hosting providerMicrosoft Azure

Website—

Rank#1 of 2,000

Classified byipapi.is hosting detection

IPv4 networks

44,164 networks · 104,599,363 addresses

Network	Addresses	First – last address
4.192.0.0/10	4,194,304	4.192.0.0 – 4.255.255.255
20.64.0.0/10	4,194,304	20.64.0.0 – 20.127.255.255
20.192.0.0/10	4,194,304	20.192.0.0 – 20.255.255.255
172.128.0.0/10	4,194,304	172.128.0.0 – 172.191.255.255
4.160.0.0/11	2,097,152	4.160.0.0 – 4.191.255.255
48.192.0.0/11	2,097,152	48.192.0.0 – 48.223.255.255
4.144.0.0/12	1,048,576	4.144.0.0 – 4.159.255.255
13.80.0.0/12	1,048,576	13.80.0.0 – 13.95.255.255
20.0.0.0/12	1,048,576	20.0.0.0 – 20.15.255.255
20.48.0.0/12	1,048,576	20.48.0.0 – 20.63.255.255
20.160.0.0/12	1,048,576	20.160.0.0 – 20.175.255.255
52.160.0.0/12	1,048,576	52.160.0.0 – 52.175.255.255
57.160.0.0/12	1,048,576	57.160.0.0 – 57.175.255.255
74.144.0.0/12	1,048,576	74.144.0.0 – 74.159.255.255
172.192.0.0/12	1,048,576	172.192.0.0 – 172.207.255.255
13.64.0.0/13	524,288	13.64.0.0 – 13.71.255.255
20.40.0.0/13	524,288	20.40.0.0 – 20.47.255.255
20.184.0.0/13	524,288	20.184.0.0 – 20.191.255.255
52.136.0.0/13	524,288	52.136.0.0 – 52.143.255.255
52.152.0.0/13	524,288	52.152.0.0 – 52.159.255.255
52.184.0.0/13	524,288	52.184.0.0 – 52.191.255.255
57.152.0.0/13	524,288	57.152.0.0 – 57.159.255.255
172.208.0.0/13	524,288	172.208.0.0 – 172.215.255.255
20.16.0.0/14	262,144	20.16.0.0 – 20.19.255.255
20.24.0.0/14	262,144	20.24.0.0 – 20.27.255.255

4.192.0.0/10
20.64.0.0/10
20.192.0.0/10
172.128.0.0/10
4.160.0.0/11
48.192.0.0/11
4.144.0.0/12
13.80.0.0/12
20.0.0.0/12
20.48.0.0/12
20.160.0.0/12
52.160.0.0/12
57.160.0.0/12
74.144.0.0/12
172.192.0.0/12
13.64.0.0/13
20.40.0.0/13
20.184.0.0/13
52.136.0.0/13
52.152.0.0/13
52.184.0.0/13
57.152.0.0/13
172.208.0.0/13
20.16.0.0/14
20.24.0.0/14

The 25 largest of 44,164. The API and the database have all of them.

IPv6 networks

16,901 networks

2603:1061:2000::/36
2603:1061:1000::/39
2603:1006:1400::/40
2603:1010:100::/40
2603:1016:2400::/40
2603:1026:2400::/40
2603:1036:2400::/40
2603:1040:300::/40
2603:1040:500::/40
2603:1040:700::/40
2603:1046:1400::/40
2603:1050:100::/40
2603:1056:1400::/40
2603:1061:1700::/40
2603:1061:1800::/40
2603:1063:2800::/43
2603:1063:2a00::/43
2603:1061:1310::/44
2603:1063:2410::/44
2603:1063:2420::/44
2603:1063:2610::/44
2603:1063:2620::/44
2603:1063:2820::/44
2603:1063:2a20::/44
2603:1063:c000::/44

2603:1061:2000::/36
2603:1061:1000::/39
2603:1006:1400::/40
2603:1010:100::/40
2603:1016:2400::/40
2603:1026:2400::/40
2603:1036:2400::/40
2603:1040:300::/40
2603:1040:500::/40
2603:1040:700::/40
2603:1046:1400::/40
2603:1050:100::/40
2603:1056:1400::/40
2603:1061:1700::/40
2603:1061:1800::/40
2603:1063:2800::/43
2603:1063:2a00::/43
2603:1061:1310::/44
2603:1063:2410::/44
2603:1063:2420::/44
2603:1063:2610::/44
2603:1063:2620::/44
2603:1063:2820::/44
2603:1063:2a20::/44
2603:1063:c000::/44

The 25 largest of 16,901. The API and the database have all of them.

Detect Microsoft Azure with the API

Every address in these networks comes back with is_datacenter: true and a datacenter object naming the provider. The detection flags need an API key: a free account comes with 1,000 requests a day.

curl "https://api.ipapi.is/?q=4.192.0.1&key=YOUR_API_KEY"

"is_datacenter": true,
"datacenter": {
  "datacenter": "Microsoft Azure",
  "network": "4.192.0.0 - 4.255.255.255"
}

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