AS Number Calculator

Convert Autonomous System (AS) numbers between decimal, hexadecimal, and ASPLAIN formats. Essential for BGP configuration and troubleshooting.

Enter AS Number:

Input Format:

Decimal ASDOT Hexadecimal

Results

Decimal (ASPLAIN): -

ASDOT Format: -

Hexadecimal: -

About AS Numbers

Key Points:

Range: 16-bit AS numbers: 0-65535, 32-bit AS numbers: 0-4294967295
Formats: ASPLAIN (decimal), ASDOT (X.Y notation), and hexadecimal
Usage: Identifies autonomous systems in BGP routing
Private Range: 64512-65534 (16-bit) and 4200000000-4294967294 (32-bit)