In today?셲 fast-paced world, SMS (Short Message Service) remains one of the simplest and most reliable ways for businesses to communicate with customers. But have you ever wondered ??why is there a limit to how many characters you can send in a single text message?
As SureM, a global SMS aggregator company, we often get this question from clients. Let?셲 break it down simply.
The Technical Reason: It?셲 in the Standard
SMS was developed in the 1980s when mobile networks had very limited data transmission capabilities. The original SMS protocol was designed to send short bursts of data ??specifically, 140 bytes.
If you use standard English characters (GSM-7 encoding), this translates to 160 characters.
If you use special characters, Korean, Chinese, or emojis (Unicode/UTF-16), this shrinks down to 70 characters per message.
This limit isn?셳 about cost or company policy ??it?셲 a technical rule built into the SMS system globally.
What Happens If You Go Over the Limit?
Modern messaging systems like SureM automatically handle longer messages using message concatenation.
The message is split into multiple SMS parts.
Each part uses a small portion of the space for special “headers” that help the recipient’s phone put the message back together.
That?셲 why a long message may count as 2 or 3 SMS units when billing occurs.
Why Does This Matter for Businesses?
Character limits affect both cost and customer experience
Shorter messages = lower costs.
Longer messages = higher costs (charged per message part).
Well-optimized content = better readability and engagement.
Quick Tips for SMS Writing
Use concise and clear wording.
Avoid unnecessary special characters
Use shortened URLs
Consider LMS/MMS if you need to send longer content
Final Thoughts
SMS was built to be short and simple ??that?셲 why it works so well even today. Understanding the message length limit helps businesses plan better and save costs while maximizing communication impact.
At SureM, we help companies deliver optimized SMS content globally. Need help with your SMS strategy? Reach out to us anytime.
Contact: 1588-4640 intlsales@surem.com http://www.surem.net