Azure service tags
Public-cloud IP prefixes by service and region, the exact differences between Microsoft's weekly publications, and lists your firewall can read.
Observed changes in publication 425
Publication 426 · 3398 tags · checked today 01:16 UTC · next 13 Nov 01:16 UTCMost recent 6 observation dates · retained from 7 Oct 2026 to 11 Nov 2026. Choose any date in that range.
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AzureCloud.israelcentralChanged tag · publication 424 → 425
Addresses+4 IPv4 addresses and 1 IPv6 rangenone dropped
Prefixes as published+2
-
Added
40.123.137.88/30new -
Added
2603:1061:1007:124::/63new
-
Added
-
AzureCloud.israelnorthwestChanged tag · publication 424 → 425
Addresses−1 IPv6 range
Prefixes+72−1
- Removed
2603:1040:1702::/47 - Added
2603:1040:1702:1000::/52 - Added
2603:1040:1702:100::/56 - Added
2603:1040:1702:10::/60 - Added
2603:1040:1702:2000::/51 - Added
2603:1040:1702:200::/55
- Removed
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AzureCloud.italynorthChanged tag · publication 424 → 425
Addresses+4 IPv4 addresses and 2 IPv6 ranges−68 IPv4 addresses
Prefixes+19−5
- Removed
2603:1061:100b:1b0::/63 - Removed
2603:1061:100b:1b2::/64 - Removed
40.120.135.112/30 - Removed
40.120.135.116/31 - Removed
9.235.0.0/16 - Added
2603:1061:100b:1b0::/62
- Removed
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AzureCloud.japaneastChanged tag · publication 424 → 425
Addresses−80 IPv4 addresses
Prefixes+21−2
- Removed
135.149.0.0/17 - Removed
48.210.0.0/16 - Added
135.149.0.0/19 - Added
135.149.32.0/20 - Added
135.149.48.0/22 - Added
135.149.52.0/23
- Removed
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AzureCloud.japanwestChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+11−1
- Removed
4.190.128.0/17 - Added
4.190.128.0/18 - Added
4.190.192.0/19 - Added
4.190.224.0/20 - Added
4.190.240.0/22 - Added
4.190.244.0/24
- Removed
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AzureCloud.koreacentralChanged tag · publication 424 → 425
Addresses+46 IPv4 addresses−32 IPv4 addresses
Prefixes+26−5
- Removed
4.218.0.0/16 - Removed
4.230.0.0/16 - Removed
57.157.89.128/28 - Removed
57.157.89.144/30 - Removed
57.157.89.148/31 - Added
4.218.0.0/17
- Removed
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AzureCloud.koreasouthChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+12−1
- Removed
4.243.0.0/16 - Added
4.243.0.0/19 - Added
4.243.128.0/17 - Added
4.243.32.0/20 - Added
4.243.48.0/21 - Added
4.243.56.0/23
- Removed
-
AzureCloud.malaysiasouthChanged tag · publication 424 → 425
Addresses−1 IPv6 range
Prefixes+72−1
- Removed
2603:1040:1502::/47 - Added
2603:1040:1502::/48 - Added
2603:1040:1503:1000::/52 - Added
2603:1040:1503:100::/56 - Added
2603:1040:1503:10::/60 - Added
2603:1040:1503:2000::/51
- Removed
-
AzureCloud.northcentralusChanged tag · publication 424 → 425
Addresses+2 IPv4 addressesnone dropped
Prefixes as published+1
-
Added
57.157.67.108/31new
-
Added
-
AzureCloud.northeuropeChanged tag · publication 424 → 425
Addresses−4,396 IPv4 addresses
Prefixes+139−5
- Removed
4.207.0.0/16 - Removed
4.208.0.0/15 - Removed
48.209.128.0/18 - Removed
72.145.0.0/17 - Removed
74.178.0.0/17 - Added
4.207.0.0/19
- Removed
-
AzureCloud.norwayeChanged tag · publication 424 → 425
Addresses−32 IPv4 addresses
Prefixes+16−1
- Removed
74.240.192.0/18 - Added
74.240.192.0/22 - Added
74.240.196.0/25 - Added
74.240.196.128/28 - Added
74.240.196.160/27 - Added
74.240.196.192/26
- Removed
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AzureCloud.norwaywChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+11−1
- Removed
4.220.128.0/17 - Added
4.220.128.0/20 - Added
4.220.144.0/21 - Added
4.220.152.0/22 - Added
4.220.156.0/24 - Added
4.220.157.0/27
- Removed
-
AzureCloud.polandcentralChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+12−1
- Removed
74.248.0.0/16 - Added
74.248.0.0/17 - Added
74.248.128.0/19 - Added
74.248.160.0/24 - Added
74.248.161.0/28 - Added
74.248.161.128/25
- Removed
-
AzureCloud.qatarcentralChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+13−1
- Removed
4.170.0.0/15 - Added
4.170.0.0/16 - Added
4.171.0.0/19 - Added
4.171.128.0/17 - Added
4.171.32.0/21 - Added
4.171.40.0/23
- Removed
-
AzureCloud.southafricanorthChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+12−1
- Removed
4.222.0.0/16 - Added
4.222.0.0/17 - Added
4.222.128.0/18 - Added
4.222.192.0/19 - Added
4.222.224.0/20 - Added
4.222.240.0/23
- Removed
-
AzureCloud.southafricawestChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+11−1
- Removed
172.209.0.0/17 - Added
172.209.0.0/20 - Added
172.209.16.0/21 - Added
172.209.24.0/22 - Added
172.209.28.128/25 - Added
172.209.28.16/28
- Removed
-
AzureCloud.southcentralusChanged tag · publication 424 → 425
Addresses+1,538 IPv4 addresses and 1 IPv6 range−282 IPv4 addresses
Prefixes+87−7
- Removed
145.132.128.0/17 - Removed
172.215.128.0/18 - Removed
20.165.0.0/17 - Removed
23.98.128.0/17 - Removed
2603:1030:804:30f::/64 - Removed
40.123.165.48/31
- Removed
-
AzureCloud.southeastasiaChanged tag · publication 424 → 425
Addresses−4,229 IPv4 addresses
Prefixes+63−3
- Removed
135.171.0.0/16 - Removed
172.188.0.0/16 - Removed
57.155.0.0/16 - Added
135.171.0.0/19 - Added
135.171.128.0/17 - Added
135.171.32.0/22
- Removed
-
AzureCloud.southfranceChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+9−1
- Removed
4.251.224.0/19 - Added
4.251.224.0/21 - Added
4.251.232.0/23 - Added
4.251.234.0/24 - Added
4.251.235.0/26 - Added
4.251.235.128/25
- Removed
-
AzureCloud.southindiaChanged tag · publication 424 → 425
Addresses−16 IPv4 addresses
Prefixes+12−1
- Removed
74.224.0.0/16 - Added
74.224.0.0/19 - Added
74.224.128.0/17 - Added
74.224.32.0/21 - Added
74.224.40.0/24 - Added
74.224.41.0/25
- Removed
Services
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