Whether you’re heading into remote backcountry terrain, crossing oceans, supporting field operations, or simply want peace of mind knowing you can call or text truly anywhere on Earth, our Iridium satellite phone monthly contracts deliver reliable, predictable global communication when you need it most.

Our flexible postpaid contracts are designed to suit a wide range of users, from occasional travellers and emergency back-up communicators to professionals who depend on voice and SMS connectivity as part of their daily workflow. With Iridium’s fully global satellite network powering these plans, you’re not limited by terrestrial coverage zones, you get service at the poles, in deserts, deep forests, or out at sea where other networks simply can’t reach.

Unlike prepaid top-ups that can expire or run out at inconvenient times, these monthly airtime contracts give you simple, recurring billing, clear inclusions, and the option to choose a plan that matches your usage requirements, from low-volume emergency check-ins to generous voice minute allowances for frequent calling.

Every plan includes:

Predictable monthly pricing with transparent billing
Global voice and SMS coverage across the Iridium network
The freedom to scale your plan up or down as your needs change
Peace of mind that you’ll stay connected where terrestrial mobile phones can’t

Whether you’re a solo adventurer, a fleet operator, or part of a large team deployed in remote environments, our Iridium monthly contracts make it easy to stay in touch without worrying about topping up balances or losing service mid-trip.

Iridium Postpaid SIM Cards are available at no charge with free delivery to any US address via USPS Priority Mail. Activate when ready! It's that simple. Excel spreadsheet bill presentation is available upon request for postpaid plans. Courtesy email reminders are sent shortly before your prepaid account expires. Annually billed plans are available to government and corporate customers. Please call for more information.

Revised Iridium SIM Reactivation Process
In order to be more sustainable by reducing SIM card waste and physical shipments, and to get customers activated onto the Iridium network more quickly, Iridium has redeveloped its SIM card reactivation process. This new streamlined approach also means you can release your Iridium SIM card for a fraction of the previous cost.

Conditions apply. See below.

$15.00 SIM card release charge only applies to Iridium SIM card reactivations for Iridium Handsets and the Iridium GO!.
Please contact us if you need to check your SIM applies or if you have any questions.

Terms & Conditions

Taxes, USF charges, and other regulatory fees are not included in the listed rates. The customer is responsible for any applicable taxes or fees, which may vary. A full breakdown of any such charges will be provided before your purchase is completed.

Early Termination Fees | Advanced & Power Plans

A flat fee (based on months) will be charged based on the number of days the service has been active in the Minimum Contract Period at the point of deactivation.

Between or equal to 1 and 90 days = 3 x monthly fees
Between or equal to 91 and 150 days = 2 x monthly fees
Between or equal to 151 and 180 days = 1 x monthly fees

Standard Terms

All plans will be pro-rated in their first month. This includes a pro-rata amount of the monthly fee in a monetary form and any inclusive allowances shown which is based upon the activation date.
If the requested plan offers any inclusive minutes, SMS, MB or allowance, this will not carry over month to month and there is no entitlement to any compensation, rebate, credit or carry over to the next billing cycle.
Once any inclusive minutes, SMS, MB or allowance has been exceeded, an overage charge will apply at the applicable rates set forth in the Overage Rates Table. Overage charges will be calculated and invoiced on a monthly basis.
The minimum term shown below is a minimum commitment period. After this period, the contract will go to a rolling monthly contract unless otherwise stated. The plan will be charged until written request is made via email for the deactivation to take place.
There is no charge to receive calls or SMS on the device and will not be deducted from any inclusive allowance. However, the individual making the call/SMS will be charged by their landline or mobile operator. It is their responsibility to check these charges.

Iridium-Specific Terms

+1 Services only available with a US phone number at this time.
The Unlimited ISU-ISU Voice Add-On option is only available for Iridium Subscribers using SIM-based Iridium Handsets and is not available for use with L-Band Transceivers or the Iridium GO!®(“Non-Eligible Equipment”). There is no term commitment on the Unlimited ISU-ISU Voice Add-On option. Iridium will monitor SIM Card IDs/IMSIs and IMEIs on a monthly basis to determine if the Unlimited ISU-ISU Voice Add-On option is being activated and used on Non-Eligible Equipment. If Iridium determines that the Unlimited ISU-ISU Voice Add-On option is being activated and used on Non-Eligible Equipment, Iridium reserves the right to: (i) deactivate the Unlimited ISU-ISU Voice Add-On option on the Non-Eligible Equipment with immediate effect without any required notice, (ii) deactivate the Non-Eligible Equipment with immediate effect without any required notice, or combination of both. Voice calls between an ISU and Non-Eligible Equipment (i.e. Iridium 9555 to Iridium GO!) are not covered by the Unlimited ISU-ISU Voice Add-On option and will be charged at the Iridium to Iridium rate as per the Overage Rate Table. Iridium reserves the right to modify or terminate this Unlimited ISU-ISU Voice Add-On option with thirty (30) days advance notice.

Iridium-DSG Specific Terms

DSG plans are on an approval basis and require up to 7 working days to be created. Overage Charges for the three bundled and pooled voice call types (i.e., ISU-ISU, ISUPSTN, and ISU-Iridium VM), and ETF charges.
Under either the Starter 25, Advanced 100, or Power 250 plans, Iridium subscribers on the same plan may aggregate or “pool” their monthly bundled voice minutes (Iridium to Fixed/Cellular, Iridium to Iridium and Iridium to Voicemail) in a DSG (the“DSG Bundle”). For clarity, SMS-MO messages are not pooled. Each ISU participating in a DSG will be charged as per the rates in the Monthly Airtime Agreement Options. Each ISU’s voice usage of the three bundled call types (Iridium to Fixed/Cellular, Iridium to Iridium and Iridium to Voicemail) will be decremented against the DSG Bundle’s pooled voice minutes during the bill cycle until the pool is exhausted, at which point the Overage Rates as set forth in the Overage Rates Table apply. There is no rollover of bundled minutes as all voice minute allotments represent only the maximum usage without incurring additional charges or fees, not a required usage amount. As a result, there will be no minutes available for use or “rollover” at the end of the bill cycle. An ISU may only be included in a single DSG; however, the Starter 25, Advanced 100, or Power 250 Plans may each have more than one DSG created, subject to each DSG meeting the Minimum DSG Participants as set forth belowInsert and format text, links, and images here.

USF & Other Fees

Iridium Standard Satellite Phone Monthly Contracts