ASN: ASN
An Autonomous System Number used for BGP routing, allocated by a Regional Internet Registry.
Default definition. This article describes the default
ASN definition shipped with DemandFlow. Administrators can add, remove, rename, or re-type fields, change which ones are required, and alter the layout from the Definitions screen in Settings. Your tenant's current schema may differ from what is shown here. To read the current definition at any time, GET the DEFINITION object whose id matches ASN.Entity properties
| Property | Value |
|---|---|
| Entity code | ASN |
| Display name | ASN |
| Plural | ASNs |
| Level | 41800 |
Use cases
ASN (Autonomous System Number) is a globally unique identifier assigned to a network for use in BGP routing. ASNs can be 16-bit (0-65535, legacy) or 32-bit (0-4294967295, modern). Private ASNs (64512-65534 for 16-bit, 4200000000-4294967294 for 32-bit) are used internally and not announced publicly. The RIR lookup tracks which registry allocated the ASN. Sites using this ASN are shown via a related list. ASNs are essential for organisations that peer with other networks, run their own BGP, or operate MPLS networks.
Fields
General: ASN Details
| Field | Type | Required | Notes |
|---|---|---|---|
asn | number | Yes | AS Number. |
name | text | Yes | Organisation or network name |
description | text (multi-line) | Description. | |
rir | reference → RIR | RIR. |
Relationships
- Lookups:
rirpoints at aRIRrecord.
Creating a ASN via the API
POST /v1/objects
Authorization: Bearer <your-pat>
Content-Type: application/json
{
"entity": "ASN",
"level": 41800,
"comboKey": "SUB:<your-sub-id>|ENT:",
"asn": 0,
"name": "Name",
"description": "Description"
}Listing ASNs records
GET /v1/entities/ASN/SUB