---
oid: "1.3.18"
asn1-notation: "{iso(1) identified-organization(3) 18}"
description: "Systems Network Architecture/Open Systems Interconnection (SNA/OSI) network"
last-modified: "2026-07-01"
tags: [oid-repository]
---

## OID: `1.3.18` (last updated: 2026-07-01)

```asn1
{iso(1) identified-organization(3) 18}
```

### Description

Systems Network Architecture/Open Systems Interconnection (SNA/OSI) network

**Classification**: Identification scheme

### Supplementary information

Structure of code: SNA/OSI "NET" open systems interconnection network. 
Description of organizations covered by the coding system: Any company or organization that participates in an SNA/OSI networking environment. This program encompasses companies throughout the world. 
Notes on use of the code: This International Code Designator (ICD) will also form the initial part of the Open Systems Interconnection (OSI) network addressing and naming tree as depicted in Addendum 2 to ISO 8348.

### Child OIDs

- `1.3.18.0`: `0`

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