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SMS Length and Message Parts

This link helps you calculate how many characters you can send in an SMS: http://smscharactercount.com

When composing your SMS, there are 2 types of characters you can use:

Standard characters – those from the GSM Basic Character Set (see below)

Unicode characters –characters that aren’t in the GSM 03.38 basic character set, including emojis.

 

According to carriers, 1 standard SMS message has a maximum of 160 characters. You do not have to limit yourself to sending 160 characters,

Tip: No matter how many message parts, your SMS will always be delivered as 1 long message to the recipient. It will NOT be split or delivered separately.

 

When a message is longer than 160 characters, this is referred to as a multi-part message. The total SMS limit then becomes 153 characters per ‘part’ as the 7 characters are used up by invisible headers and footers which denote which part of the message is being sent (i.e. Part 1 of 2). For example: If a message is
longer than 6 message parts, it will be truncated (see below).

 

GSM Basic Character Set:

1 – 160 characters = 1 Message

161 – 306 characters = 2 Messages

307 – 459 characters = 3 Messages

460 – 612 characters = 4 Messages

613 – 765 characters = 5 Messages

766 – 918 characters = 6 Messages

919 – 1071 characters = 7 Messages

1072 – 1224 characters = 8 Messages

 

Non-GSM (Unicode) characters:

1 – 70 characters = 1 Message

71 – 134 characters = 2 Messages

135 – 201 characters = 3 Messages

202 – 268 characters = 4 Messages

269 – 335 characters = 5 Messages

336 – 402 characters = 6 Messages

403 – 469 characters = 7 Messages

470 – 536 characters = 8 Messages

 Frequently Asked Questions, Getting Started, Sending SMS, User Guide  
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