Area Code 330 – Rosignol/Shieldstown

Overview of Guyana's +592 330 Geographic Code

The +592 330 numbering block is a geographic allocation within the Republic of Guyana's national numbering plan, governed by the Guyana Public Utilities Commission (PUC) and aligned with ITU-T E.164 international dialing standards. This prefix serves the Rosignol/Shieldstown area, located in the Mahaica-Berbice region (Region 5) along the eastern bank of the Essequibo River. Rosignol functions as a key transport hub, connecting the capital, Georgetown, via the Demerara Harbour Bridge and the Essequibo River ferry service, while Shieldstown is a nearby residential and commercial locality.

Geographic Coverage and Administrative Jurisdiction

The 330 code is assigned to fixed-line PSTN (Public Switched Telephone Network) services within the Rosignol/Shieldstown exchange area. It encompasses the town of Rosignol, its surrounding villages, and Shieldstown, which fall under the administrative purview of the Mahaica-Berbice Regional Democratic Council. Subscribers within this area are allocated numbers in the format +592 330 XXXX, where XXXX is the unique subscriber line number. This results in a total of 10,000 possible subscriber numbers within the exchange, though actual allocation depends on network capacity and demand.

Dialing Formats and Procedures

For local callers within Guyana (including Rosignol/Shieldstown), the national significant number is 330 XXXX, and calls are placed by dialing the seven-digit number directly (e.g., 330-1234). No trunk prefix (such as '0') is used in Guyana's domestic dialing plan; the country code +592 is only required for international calls. For callers from outside Guyana, the full international format must be used: +592 330 XXXX (e.g., +592 330 1234). When dialing from a mobile phone, the plus sign (+) is typically used, but the international access code (e.g., 011 from the US, 00 from many countries) can replace it.

Overlay and Numbering Considerations

As of the latest PUC updates, no overlay code has been introduced for the Rosignol/Shieldstown area. The 330 prefix remains a distinct geographic code, and number portability is not yet implemented for fixed-line services in Guyana. This means that a subscriber moving outside the Rosignol/Shieldstown exchange area would typically need to obtain a new local number. However, the growth of VoIP and mobile services has increased the flexibility of communications, though the geographic prefix remains tied to the physical location of the fixed-line connection.

Caller Instructions

For local callers: simply dial the seven-digit number (330 XXXX). For international callers: dial your country's exit code, followed by Guyana's country code 592, then the area code 330 and the subscriber number (e.g., 011 592 330 XXXX from the US). Ensure you omit any leading '0' that might appear in local directories, as Guyana does not use a trunk prefix. For businesses in Rosignol/Shieldstown, it is advisable to display the number in international format (+592 330 XXXX) on websites and marketing materials to facilitate global reach.