> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ahmadraza.in/llms.txt
> Use this file to discover all available pages before exploring further.

# MultiVPC CIDR

### **Dev VPC** – `10.10.0.0/16`

| Subnet Name      | AZ  | CIDR Block     | Type    | Notes                        |
| ---------------- | --- | -------------- | ------- | ---------------------------- |
| public-subnet-a  | AZ1 | 10.10.0.0/20   | Public  | Internet Gateway attached    |
| public-subnet-b  | AZ2 | 10.10.16.0/20  | Public  | Internet Gateway attached    |
| public-subnet-c  | AZ3 | 10.10.32.0/20  | Public  | Internet Gateway attached    |
| private-subnet-a | AZ1 | 10.10.48.0/20  | Private | Uses NAT Gateway in public-a |
| private-subnet-b | AZ2 | 10.10.64.0/20  | Private | Uses NAT Gateway in public-b |
| private-subnet-c | AZ3 | 10.10.80.0/20  | Private | Uses NAT Gateway in public-c |
| data-subnet-a    | AZ1 | 10.10.96.0/20  | Data    | No NAT, DB-only access       |
| data-subnet-b    | AZ2 | 10.10.112.0/20 | Data    | No NAT, DB-only access       |
| data-subnet-c    | AZ3 | 10.10.128.0/20 | Data    | No NAT, DB-only access       |

***

### **Staging VPC** – `10.20.0.0/16`

| Subnet Name      | AZ  | CIDR Block     | Type    | Notes                        |
| ---------------- | --- | -------------- | ------- | ---------------------------- |
| public-subnet-a  | AZ1 | 10.20.0.0/20   | Public  | Internet Gateway attached    |
| public-subnet-b  | AZ2 | 10.20.16.0/20  | Public  | Internet Gateway attached    |
| public-subnet-c  | AZ3 | 10.20.32.0/20  | Public  | Internet Gateway attached    |
| private-subnet-a | AZ1 | 10.20.48.0/20  | Private | Uses NAT Gateway in public-a |
| private-subnet-b | AZ2 | 10.20.64.0/20  | Private | Uses NAT Gateway in public-b |
| private-subnet-c | AZ3 | 10.20.80.0/20  | Private | Uses NAT Gateway in public-c |
| data-subnet-a    | AZ1 | 10.20.96.0/20  | Data    | No NAT, DB-only access       |
| data-subnet-b    | AZ2 | 10.20.112.0/20 | Data    | No NAT, DB-only access       |
| data-subnet-c    | AZ3 | 10.20.128.0/20 | Data    | No NAT, DB-only access       |

***

### **Prod VPC** – `10.30.0.0/16`

| Subnet Name      | AZ  | CIDR Block     | Type    | Notes                        |
| ---------------- | --- | -------------- | ------- | ---------------------------- |
| public-subnet-a  | AZ1 | 10.30.0.0/20   | Public  | Internet Gateway attached    |
| public-subnet-b  | AZ2 | 10.30.16.0/20  | Public  | Internet Gateway attached    |
| public-subnet-c  | AZ3 | 10.30.32.0/20  | Public  | Internet Gateway attached    |
| private-subnet-a | AZ1 | 10.30.48.0/20  | Private | Uses NAT Gateway in public-a |
| private-subnet-b | AZ2 | 10.30.64.0/20  | Private | Uses NAT Gateway in public-b |
| private-subnet-c | AZ3 | 10.30.80.0/20  | Private | Uses NAT Gateway in public-c |
| data-subnet-a    | AZ1 | 10.30.96.0/20  | Data    | No NAT, DB-only access       |
| data-subnet-b    | AZ2 | 10.30.112.0/20 | Data    | No NAT, DB-only access       |
| data-subnet-c    | AZ3 | 10.30.128.0/20 | Data    | No NAT, DB-only access       |