Phone numbers that
actually work for
AI agents

Twilio and similar services use VOIP numbers. Major platforms like Google, Meta, and banks can detect VOIP numbers and block them for verification. Our numbers are real physical SIM cards on actual carrier networks — they pass every check.

We use major US carriers to ensure maximum compatibility. Each SIM is a real, active line on the carrier network.

Dedicated gives you an exclusive number that only your agent uses. Shared means your agent gets access to a pool of numbers — great for verification where you don't need a persistent number.

We provide a simple REST API. Send and receive SMS, make and receive voice calls. Most integrations take under 30 minutes.

Yes, dedicated numbers can be ported to another carrier. Contact support to initiate a port request.

We monitor all SIMs 24/7. If a SIM has issues, we swap it and migrate your number automatically. Dedicated plans include a 99.9% uptime SLA.

Shared numbers allow multiple customers to use the same phone number infrastructure while keeping messages and calls isolated through our authentication and session system. When you purchase access to a shared number, you are not permanently assigned a phone number. Instead, your account receives a secure session (lease) that routes messages and calls to your API only. This allows us to offer a much lower price while still providing reliable SMS and voice functionality.

Each request is tied to your API key and session token. When you start using a shared number, our system creates a temporary session that maps your API key, the shared phone number, your expected sender (optional), and a time window. Incoming messages and calls are then matched to that session and delivered only to your account. Other users sharing the same number cannot see your messages or calls.

Our routing system automatically separates traffic using authenticated API sessions, sender number matching, active conversation state, and time-based leases. This ensures that even if multiple users are using the same number at the same time, each user only receives the messages intended for their session.

Access is granted through our checkout and API system. Create an account, subscribe to a shared plan, generate an API key, then request a shared number session through the API. Example: POST /v1/shared/lease with your Bearer token. The API will return a number and a session ID that your application can use for sending or receiving messages.

Shared number sessions are temporary and automatically expire after a defined time period. This helps ensure fair usage and prevents message collisions between users. Sessions can be renewed or recreated through the API whenever needed.

Dedicated numbers are recommended when you need a permanent phone number, long-running conversations, higher SMS or call throughput, or guaranteed exclusivity. Dedicated numbers are assigned directly to your account and are not shared with other users.

Yes. You can upgrade at any time through your dashboard or checkout. When you upgrade, a phone number will be permanently assigned to your account and removed from the shared pool.