Comprehensive Guide to Phone Numbers in Cocos (Keeling) Islands

Quick Reference

• Country: Cocos (Keeling) Islands
• Country Code: +61
• International Prefix: 001[14-689]|14(?:1[14]|34|4[17]|[56]6|7[47]|88)0011
• National Prefix: 0

Overview

Discover the telephone numbering plan of Cocos (Keeling) Islands, an external Australian territory. This guide is essential for telecom professionals, developers, and system administrators, providing insights into phone number structures, dialing procedures, and technical details.

Number Formats

General Number Structure

Cocos (Keeling) Islands phone numbers follow Australia's numbering plan:

• Country Code: +61
• National (Significant) Number: 9 digits
  • Area Code: 1-4 digits (for geographic numbers)
  • Subscriber Number: 4-7 digits

Number Format Table

Type	Format	Example
Geographic	+61 X XXXX XXXX	+61 8 9162 7700
Mobile	+61 4XX XXX XXX	+61 412 345 678
Toll-Free	+61 1800 XXX XXX	+61 1800 555 555
Premium Rate	+61 19XX XXX XXX	+61 1902 123 456
Shared Cost	+61 13 XX XX	+61 13 00 1234

Regular Expressions

Validate Cocos (Keeling) Islands phone numbers using these regex patterns:

• Geographic Numbers:
  ^\+61[2-9]\d{8}$
  

• Mobile Numbers:
  ^\+614\d{8}$
  

• Toll-Free Numbers:
  ^\+611800\d{6}$
  

• Premium Rate Numbers:
  ^\+6119\d{8}$
  

• Shared Cost Numbers:
  ^\+6113\d{4}$
  

Dialing Procedures

Domestic Calls

• Landline to Landline: Dial area code + subscriber number. Example: 08 9162 7700
• Landline to Mobile: Dial mobile number directly. Example: 0412 345 678
• Mobile to Mobile: Dial mobile number directly. Example: 0412 345 678
• Mobile to Landline: Dial area code + subscriber number. Example: 08 9162 7700

International Calls

• Outgoing: Dial 0011 + country code + area code + subscriber number. Example: 0011 44 20 7946 0958 (UK)
• Incoming: Dial international access code + +61 + area code (omit 0) + subscriber number. Example: +61 8 9162 7700

Number Portability

Cocos (Keeling) Islands adheres to Australia's mobile number portability (MNP) regulations, allowing users to retain their mobile numbers when switching providers.

Major Telecom Operators

Telecom services in Cocos (Keeling) Islands are provided by major Australian operators:

• Telstra: Offers mobile, landline, and internet services.
• Optus: Provides mobile and fixed-line services.
• Vodafone: Specializes in mobile services.

ITU-T Standards

Cocos (Keeling) Islands complies with the ITU-T E.164 standard for international telecommunication numbering, ensuring global interoperability.

Number Allocation and Management

The Australian Communications and Media Authority (ACMA) oversees phone number allocation and management in Cocos (Keeling) Islands, ensuring adherence to international standards.

Technical Restrictions and Special Cases

• Golden Numbers: No specific golden numbers information is available.
• Number Blocking: Standard blocking services are available through providers.

Technical Considerations

For systems handling Cocos (Keeling) Islands numbers, consider:

• Validation: Use provided regex patterns.
• Formatting: Follow E.164 standard for international compatibility.
• Portability: Implement processes for mobile number portability as per Australian regulations.