# IAD WLAN 4421

> ADSL modem and router

**Wikidata**: [Q111920733](https://www.wikidata.org/wiki/Q111920733)  
**Source**: https://4ort.xyz/entity/iad-wlan-4421

## Summary  
The IAD WLAN 4421 is a product model classified as both a DSL modem and router. It is used to connect computer networks and provides internet access via ADSL technology.

## Key Facts  
- Instance of: Product model  
- Subclass of: DSL modem, router  
- Aliases: Alice IAD WLAN 4421, o2 Box 4421  
- Image: [External link](https://commons.wikimedia.org/wiki/Special:FilePath/Alice_IAD_WLAN_4421_(1).jpg)  
- Interior image: [External link](https://commons.wikimedia.org/wiki/Special:FilePath/Alice_IAD_WLAN_4421_disassembled_(1).jpg)  
- Commons category: Alice IAD WLAN 4421  
- Wikipedia languages: Commons  
- Sitelink count: 1  
- Wikidata description: ADSL modem and router  

## FAQs  
### Q: What is the IAD WLAN 4421 used for?  
A: The IAD WLAN 4421 is an ADSL modem and router designed to provide internet connectivity and network communication. It enables devices within a local network to access the internet through DSL infrastructure.

### Q: Is the IAD WLAN 4421 still in production?  
A: No information regarding current production status is available in the source material.

### Q: Are there other names for the IAD WLAN 4421?  
A: Yes, it is also known as Alice IAD WLAN 4421 and o2 Box 4421.

## Why It Matters  
The IAD WLAN 4421 represents a consumer-grade networking device that combines two essential functions—modem and router—into one unit. As part of residential broadband setups, such devices were instrumental in enabling widespread home internet adoption during the era of DSL technology. Its design reflects standard integration practices in telecommunications hardware aimed at simplifying installation and reducing equipment footprint for end users. Though specific market impact or sales figures are not cited, its presence in public knowledgebases indicates relevance in historical documentation of networking equipment models.

## Notable For  
- Dual functionality as both DSL modem and router  
- Alternate branding under Alice and o2 product lines  
- Presence in Wikimedia Commons with interior disassembly imagery  
- Classification consistency across Wikidata as a product model  
- Representation of legacy DSL-based home networking solutions  

## Body  

### Overview  
The IAD WLAN 4421 is categorized as a product model functioning as both a DSL modem and router. These classifications align with its role in connecting computer networks and facilitating internet access over traditional telephone lines using ADSL technology.

### Technical Identity  
As defined by structured data sources like Wikidata:
- **Instance Of**: Product Model  
- **Subclass Of**: DSL Modem, Router  
This confirms its dual-purpose nature in delivering wired and wireless network services typical of early-to-mid 2000s consumer routers.

### Branding & Aliases  
Multiple brand references exist for the same physical device:
- Primary name: IAD WLAN 4421  
- Known aliases:  
  - Alice IAD WLAN 4421  
  - o2 Box 4421  
These variations suggest rebranding by different ISPs or retailers without changes to core hardware specifications.

### Media Documentation  
Visual documentation includes external and internal views hosted on Wikimedia Commons:
- External view: [Image Link](https://commons.wikimedia.org/wiki/Special:FilePath/Alice_IAD_WLAN_4421_(1).jpg)  
- Disassembled/internal view: [Interior Image](https://commons.wikimedia.org/wiki/Special:FilePath/Alice_IAD_WLAN_4421_disassembled_(1).jpg)  
Such resources aid identification and support community-driven technical documentation efforts.

### Metadata & References  
- **Commons Category**: Alice IAD WLAN 4421  
- **Wikipedia Languages Supported**: Commons only  
- **Sitelink Count**: 1  
While limited cross-linking exists, the inclusion in Wikidata and Commons demonstrates minimal but notable recognition in open knowledge platforms.