A light blue fixed IP SIM card

Fixed IP Data SIMs

M2M Fixed IP Data SIMs - 3G/4G A Fixed IP SIM card is a data SIM with fixed or static IP address. This provides a secure ...
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A bright green data SIM card

M2M Data SIMs for Business

Data SIMs for Business & Industry 3G and 4G mobile data SIMs for internet access (3G and 4G broadband), M2M applications and Internet of Things ...
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A green roaming SIM card

UK Roaming Data SIMs

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 ...
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An orange backup SIM card

Backup & Failover Data SIMs

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

Private VPN SIMs

Private VPN Data SIM Cards Virtual Private Network (VPN) IPsec Data SIMs to add another layer of security while connecting all of your M2M devices ...
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A globe

International Data SIMs

International & EU Data SIMs Anvil supplies Dynamic & Fixed IP Data SIMs for use in all EU Countries as well as Globally, utilising close ...
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Trial SIM cards

Trial SIMs & Temporary Broadband

Trial Data SIMs & Temporary Broadband Anvil provides short term rental services designed to help contain the cost of a SIM trial. Which are fully inclusive ...
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A red low data SIM card

Low Data SIMs

Data SIMs with Low Data Usage Low Data SIMs for applications that only require small volumes of data to operate. Anvil can provide Fixed & Dynamic ...
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Seasonal SIM cards

Seasonal Data SIMs

Seasonal Data SIMs Anvil’s new Flexi-Contracts enable seasonal businesses to choose the right data allowance for the months when your business is active, but reduce ...
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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