What is an HLR Lookup?

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What is an HLR Lookup?

HLR stands for Home Location Register, which is a central database that contains details of each mobile phone subscriber that is registred with a particular mobile network. Each SIM card has a unique identifier called IMSI, which is the primary key to an HLR record.
You can use My-Cool-SMS to perform HLR lookups via API. You provide the target phone number and My-Cool-SMS returns information on whether the number is valid, currently active in a network, it's Mobile Network Code (MNC), it's Mobile Country Code (MCC), the number's IMSI (International Mobile Subscriber Identity) and information on whether the number is ported from another network and whether it is currently roaming.

Knows Unicode and long SMS

Sends SMS messages in any language in the world. Combines long messages into one single SMS with up to 765 characters (or 335 for Unicode).

Receives SMS texts

Implements Sender ID and receives SMS on your own My-Cool-SMS virtual number. Forwards inbound SMS to mobiles, email and web servers.

Connects to your system via API

Provides programming tools to send and receive SMS text messages and maintain your mobile marketing databases. Integrates with any web application and and e-commerce system.
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