Need help, information, or want to order?

To order SIMs, please contact us.

A light blue fixed IP SIM card

Fixed IP Data SIMs

What is a Fixed IP Data SIM? A Fixed IP SIM is a data SIM card with a public fixed (static) IP address. This provides ...
Read More
A bright green data SIM card

M2M Data SIMs for Business

3G and 4G mobile data SIMs for internet access (3G and 4G broadband), M2M applications and Internet of Things (IoT) deployments. Business friendly tariffs for ...
Read More
A green roaming SIM card

UK Roaming Data SIMs

Mobile internet for M2M applications is quickly becoming a very important service for thousands of businesses worldwide. Making sure that your SIM/application is receiving the best ...
Read More
An orange backup SIM card

Backup & Failover Data SIMs

Low Monthly SIM Rental for Fixed-IP Backup & Failover Data SIM Cards. Keeping your business running if your fixed broadband line goes down. Backup & ...
Read More
A locked padlock for security of VPN SIMs

Private IP & Bespoke 4G Networks

Extend your corporate network to include data SIMs with a private fixed IP address accessed (typically) over an IPsec tunnel. These SIMs are therefore not ...
Read More
A globe

International Data SIMs

Anvil supplies Dynamic & Fixed IP Data SIMs for use in all EU Countries as well as Globally, utilising close relationships with over 75+ Network ...
Read More
Trial SIM cards

Trial SIMs & Temporary Broadband

Anvil provides short term rental services designed to help contain the cost of a SIM trial. Which are fully inclusive of all required parts including ...
Read More
A red low data SIM card

Low Data SIMs

Anvil can provide Fixed & Dynamic IP Data SIMs with data allowances as low as 256 kilobytes per month! A range of application friendly tariffs ...
Read More
A bright green data SIM card

Variable Data Allowance SIMs

EE 4G Anvil’s new Variable Data Allowance SIMs are designed to match your data usage in any given month to the optimum data allowance tariff ...
Read More
A green roaming SIM card

High Data Use SIMs

Anvil’s Mega-Bundles include a 500GB per SIM option or, if you need more, a FULL 1TB of data per SIM. Really affordable bulk data SIMs ...
Read More

What does a SIM card do?

A SIM card, or Subscriber Identity Module, is a small plastic card with an integrated circuit that is required by mobile network operators to identify a user device. The identity is used by the network operators for billing purposes and to enable connectivity between the device and communication services such as mobile telephone networks and the internet. SIM cards use an ICCID (Integrated Circuit Card Identifier) and an IMSI (International Mobile Subscriber Identity) as part of the connection and identification process.

What information is stored on a SIM card?

  • The international telephone number or IMSI
  • The SIM number or ICCID
  • The country of origin
  • Authentication key
  • The network operator who originally activated the SIM
  • Location area identity
  • Memory capacity for contact lists and SMS messages