What Is an Alphanumeric Sender ID?
An alphanumeric sender ID allows businesses and organizations to send one-way SMS messages using a custom, recognizable sender name instead of a phone number. The sender name can include letters (A-Z, a-z), numbers (0-9), and spaces, typically between 3 and 11 characters in length. While some platforms like Android may accept shorter sender IDs, Apple generally requires sender IDs to be at least 3 characters long to ensure proper delivery.
Unlike long numbers or short codes, alphanumeric sender IDs are not designed for two-way conversations - recipients cannot reply to these messages.
Benefits of Using an Alphanumeric Sender ID
Alphanumeric sender IDs enhance brand visibility, trust, and overall message performance.
Here’s how:
Use Cases for Alphanumeric Sender IDs
Alphanumeric sender IDs are ideal for one-way notifications and alerts where clarity, trust, and speed matter.
Some common examples include:
How to Get an Alphanumeric Sender ID
LINK Mobility offers full support for setting up alphanumeric sender IDs as part of our SMS services. We manage compliance, registration, and deliverability across global markets.
To get started, you typically need to:
Choose your preferred sender name (up to 11 characters).
Register it where required, depending on the destination country.
Our local teams guide you through every step, ensuring your sender ID works reliably across multiple markets.
Limitations to Consider
While highly effective, alphanumeric sender IDs come with some limitations:
No replies: Recipients cannot respond via SMS.
Geographic restrictions: Not supported in all countries.
Registration requirements: Some regions mandate sender ID registration.
Strengthen Brand Trust Using an Alphanumeric Sender ID
If your messaging strategy includes alerts, confirmations, or promotions, an alphanumeric sender ID helps build brand recognition, increase engagement, and deliver a more professional image.
With LINK Mobility, you gain access to:
A trusted global SMS network
Local compliance expertise
Dependable and secure SMS delivery at scale
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