IPDebrief IP Intelligence Authority Platform

Microsoft Azure IP ranges

Cloud platforms

Microsoft Azure uses 46,992 IPv4 blocks and 18,148 IPv6 blocks, covering about 66 million unique IPv4 addresses, announced from AS8075. IPDebrief has analysed 11,329 addresses in these ranges; 550 (4.9%) currently carry a higher risk score.

IPv4 blocks
46,992
IPv6 blocks
18,148
Unique IPv4 addresses
65,988,557
Regions
78
Analysed addresses
11,329
Higher risk
4.9%

Range data updated 2026-11-07

About Microsoft Azure

Microsoft Azure is Microsoft's public cloud, hosting virtual machines, App Service sites, Azure Functions and the infrastructure behind many Microsoft services. Azure groups its address space into service tags by region and service, and the same blocks can appear under several tags, which is why distinct block counts here are lower than raw list sizes.

What traffic from Azure addresses usually means

Cloud addresses host websites, APIs, mail relays, CI runners and monitoring services, so most traffic from them is automated. That is usually legitimate server-to-server traffic, but because capacity can be rented in minutes, cloud ranges are also a common source of scanning, credential stuffing and scraping. Traffic from a cloud address to a consumer login or checkout page is rarely a person using a browser.

How to verify a Azure IP address

Azure ranges are shared between customer workloads and Microsoft-operated services. An address in a regional compute range is usually a customer virtual machine; Microsoft's own crawlers and mail systems have separate, verifiable identities.

Largest Azure IPv4 ranges

Top regions by address blocks

All Azure regions

Azure networks (ASNs)

Recently analysed Azure addresses

550 higher risk1,156 moderate9,623 lower risk

Frequently asked questions

How many IP addresses does Azure have?

Microsoft Azure uses 46,992 IPv4 and 18,148 IPv6 address blocks. After merging overlapping ranges, the IPv4 blocks cover about 66 million unique addresses. Counts change as the provider adds, retires or transfers address space.

How can I check if an IP address belongs to Azure?

Enter the address in the IPDebrief IP lookup. If it falls inside one of Azure's ranges, the profile names the provider alongside the announcing network, location and risk signals. Azure ranges are shared between customer workloads and Microsoft-operated services. An address in a regional compute range is usually a customer virtual machine; Microsoft's own crawlers and mail systems have separate, verifiable identities.

Which ASN does Azure use?

Microsoft Azure announces its address space from AS8075. An autonomous system number identifies the network that routes the addresses on the internet; each ASN page lists the analysed addresses observed in that network.

Is traffic from Azure IP addresses safe?

Cloud addresses host websites, APIs, mail relays, CI runners and monitoring services, so most traffic from them is automated. That is usually legitimate server-to-server traffic, but because capacity can be rented in minutes, cloud ranges are also a common source of scanning, credential stuffing and scraping. Traffic from a cloud address to a consumer login or checkout page is rarely a person using a browser. Of the 11,329 Azure addresses IPDebrief has analysed, 550 (4.9%) currently score as higher risk, so judge each address on its own profile.

Where does this IP range data come from?

Ranges are compiled from address lists the operator publishes and from global routing data, refreshed regularly. Address-level risk comes from independent observations of each address, recomputed in the background.

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