What is an Alpha Numeric Sender ID
Published:   Oct. 17, 2025

What is an Alphanumeric Sender ID?

Make Every SMS Speak Your Brand

In a world dominated by digital noise, catching a customer’s attention starts with the very first impression, the sender's name. That’s why savvy businesses around the globe use Alphanumeric Sender IDs to build trust, boost engagement, and stand out.

In this blog, we’ll break down everything you need to know about Alphanumeric Sender IDs, what they are, why they matter, and how you can get one for your brand.

What is an Alphanumeric Sender ID?

An Alphanumeric Sender ID is a custom sender name (up to 11 characters long) that appears when someone receives an SMS from your business. It can contain letters and numbers, allowing brands to display their company or product name instead of an unknown phone number.

Example:

  • Without Sender ID: TX-762341
  • With Sender ID: AMAZON, KOTAKBANK

Unlike random phone numbers or short codes, alphanumeric sender IDs enhance message credibility and are easier to remember

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Need to Register your SenderID

Business Benefits of Alphanumeric SenderID

1. Build Brand Recognition

Your brand name appears prominently on the user’s phone screen, reinforcing recall with every message.

2. Boost Customer Trust

People are more likely to engage with verified, familiar senders than anonymous numbers, especially for OTPs or payment alerts.

3. Improve Delivery & Engagement Rates

When customers recognize the sender, open rates and click-through rates are significantly higher.

4. Stay Professional

Consistent branded communication builds a reliable image for transactional, promotional, and alert-based messaging.

Where are Alphanumeric Sender IDs Used?

Alphanumeric sender IDs are used across a variety of industries:

Industry Use Case Example
eCommerce Order & delivery updates MYNTRA: Your order #2211 has shipped
Banking Transaction alerts & OTPs HDFCBANK: ₹2,000 debited from A/C ****4321
Healthcare Appointment reminders CLINICARE: Your checkup is scheduled for tomorrow at 10 AM
Education Fee reminders & results EDUSMART: Your exam results are now available
Travel & Logistics Booking & ETA updates REDBUS: Your bus is arriving in 15 minutes

Country-Specific Sender ID Rules

While alphanumeric sender IDs are widely supported, each country has different policies:

Country Supported Notes
🇮🇳 India DLT registration is mandatory
🇦🇪 UAE Pre-registration via telecom operator
🇸🇦 Saudi Arabia CITC approval required
🇺🇸 USA Use 10DLC or shortcodes instead
🇨🇦 Canada Alphanumeric sender ID not supported

Limitations to Know

  • One-Way Messaging Only: Users cannot reply to alphanumeric sender IDs.
  • No Emojis or Special Characters: Only letters (A–Z) and numbers (0–9) are allowed.
  • Approval Time: Depending on the region, it may take a few days to approve your sender name.

How to Set Up Your Alphanumeric Sender ID

  • Choose your preferred Sender ID (e.g., D7NETWRKS, MEDPLUS)
  • Submit required documentation for registration (varies by region)
  • Get approval from local telecom authorities (if needed)
  • Start sending SMS via API, web platform, or integrations

Why Choose D7 Networks?

D7 Networks is a direct telecom partner trusted by hundreds of global brands for business messaging. Here’s why customers choose us:

  • Direct Routes & High Deliverability
  • Ready-to-use Messaging APIs
  • Full Support for DLT & Compliance
  • Alphanumeric Sender ID Setup in 100+ Countries
  • Real-Time Delivery & Analytics Dashboard
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