1. AT&T: AT&T offers Internet service via their DSL (Direct Subscriber Line) or fiber networks. Their fiber network, particularly, provides high-speed Internet with speeds up to 940 Mbps, which is ideal for streaming HD videos, online gaming, and downloading large files.

2. Spectrum: Spectrum provides cable Internet services in Plano with no data caps and speeds that can reach up to 940 Mbps. They also offer a variety of bundle deals for customers interested in combining Internet with TV or phone services.

3. Frontier Communications: Frontier offers fiber-optic Internet with their FiOS service in some parts of Plano. They are known for having good customer service and competitive pricing, especially for their fiber service with speeds capable of matching or exceeding other providers.

4. Grande Communications: This Texas-based provider offers high-speed Internet service up to 1 Gbps in some areas of Plano. They are known for competitive pricing and good customer service.

5. Google Fiber: While Google Fiber is not available throughout all of Plano, it is offered in some areas and is noteworthy due to its high speeds (up to 1 Gbps) and positive customer service reputation.

Residents may also have access to various satellite and wireless internet providers offering different levels of service and pricing such as HughesNet and Viasat for satellite services or T-Mobile Home Internet for fixed wireless options.

When choosing an internet provider in Plano, it’s important to consider availability, speed requirements, budget, and whether bundling services could be advantageous. It’s also recommended to check current reviews and any updated offerings since internet service options can quickly evolve.