Azure Network Allocations

Audience: Network Engineers and Cloud Architects.

Purpose: Reference documentation for IP address assignments across Azure regions.

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Overview

This document maintains the authoritative list of IP address allocations for Azure Virtual Networks across the Aggie Innovation Platform. VNet peerings are configured in the aip-az-foundation repository.

Peering Configuration

All allocations below are peered to the hub VNet in their respective regions unless otherwise noted.

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Regional Summary

Region	CIDR Block	Purpose
South Central US	10.164.0.0/16	STAR allocations
South Central US	10.166.0.0/19	AIP allocations
East US	10.166.64.0/19	AIP East
West US 2	10.166.160.0/19	AIP West

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South Central US — STAR (10.164.0.0/16)

Prefix	Subscription	VNet
10.164.64.0/18	dit-cscn-aip-starshared-001	Star_Shared_Services

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South Central US — AIP (10.166.0.0/19)

Visual Calculator

Use the Visual Subnet Calculator to visualize allocations.

Hub & Shared Services

Prefix	Subscription	VNet
10.166.0.0/24	dit-cscn-aip-hub-001	AIP-VPN-Hub
10.166.8.0/22	dit-cscn-aip-hub-001	US-East-Shared-Services

DivIT Infrastructure

Prefix	Subscription	VNet
10.166.1.0/25	dit-cscn-aip-github-001	—
10.166.4.0/23	dit-cscn-windows365-001	vnet-dit-cscn-windows365-001-southcentralus
10.166.12.32/27	dit-cscn-communications-001	vnet-dit-cscn-communications-001-southcentralus
10.166.12.64/26	dit-cscn-idmo-duo-001	idmo-eastus-1
10.166.12.128/27	dit-cscn-itss-bas-001	vnet-dit-cscn-itss-bas-001-southcentralus
10.166.12.160/27	dit-cscn-itss-basdev-001	vnet-dit-cscn-itss-basdev-001-southcentralus
10.166.12.192/27	dit-cscn-itss-database-001	vnet-dit-cscn-itss-database-001-southcentralus
10.166.12.224/27	dit-cscn-itss-databasedev-001	vnet-dit-cscn-itss-databasedev-001-southcentralus
10.166.13.0/26	dit-cscn-syse-confidential-001	vnet-dit-cscn-syse-confidential-001-southcentralus
10.166.13.96/27	dit-cscn-intune-dev-001	vnet-dit-cscn-intune-dev-001-southcentralus
10.166.13.128/27	dit-cscn-itss-laserfiche-001	vnet-dit-cscn-itss-laserfiche-001-southcentralus
10.166.13.160/27	dit-cscn-itss-laserfichedev-001	vnet-dit-cscn-itss-laserfichedev-001-southcentralus
10.166.13.192/27	dit-cscn-itss-web-001	vnet-dit-cscn-itss-web-001-southcentralus
10.166.13.224/27	dit-cscn-itss-webdev-001	vnet-dit-cscn-itss-webdev-001-southcentralus
10.166.62.192/27	dit-cscn-aip-test-001	vnet-cscn-aip-test-001-southcentralus

Department Workloads

College & Department Allocations

Prefix	Subscription	VNet
10.166.12.0/27	clba-clba-poc-001	Mays-vnet
10.166.13.64/28	vpfa-facilities-space-dev-001	vnet-vpfa-facilities-space-dev-001-southcentralus
10.166.14.0/26	artsci-ts-prod-001	vnet-artsci-ts-prod-001-southcentralus
10.166.14.64/26	pvfa-ts-prod-001	vnet-pvfa-ts-prod-001-southcentralus
10.166.14.128/27	dfo-fam-prod-001	vnet-dfo-fam-prod-001-southcentralus
10.166.14.192/26	vpfa-fhss-prod-001	vnet-vpfa-fhss-prod-001-southcentralus
10.166.16.0/25	dfo-patt-controlled-001	—
10.166.62.224/27	clen-clen-itdev-001	vnet-engineering-dev
10.166.64.0/24	clen-clen-itprod-001	vnet-engineering-prod
10.166.65.0/25	dfo-patt-controlled-001	TAZ_C_VN_TST2-HUB

Developer Sandboxes

Prefix	Subscription
10.166.13.80/28	dit-cscn-aip-jrafferty-dev-001
10.166.15.0/27	vpop-cscn-ae-bdd4329-dev-001
10.166.15.32/27	vpop-cscn-ae-joshuacook-dev-001
10.166.15.64/27	vpop-cscn-ae-jzylks-dev-001
10.166.15.96/27	vpop-cscn-ae-greg-dev-001
10.166.15.128/28	vpop-cscn-ae-automanage-001

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East US (10.166.64.0/19)

Prefix	Subscription	VNet
10.166.66.0/27	dit-cscn-windows365-001	vnet-dit-cscn-windows365-001-eastus (planned)
10.166.66.32/27	dit-cscn-idmo-public-001	vnet-dit-cscn-idmo-public-001-eastus

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West US 2 (10.166.160.0/19)

Prefix	Subscription	VNet
10.166.160.0/27	dit-cscn-windows365-001	vnet-dit-cscn-windows365-001-westus2

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Request New Allocation

To request a new VNet allocation:

1. Contact the Cloud Operations team
2. Provide: subscription name, region, required size, and use case
3. Allocations follow the established prefix hierarchy