Notification > SMS > Service Policy

Prevention of Caller Number Fabrication

ㆍIf a message is sent from falsified sender number, such circuit or service of the user shall be suspended until investigation on the corresponding issue is completed.
  (Nevertheless, if such falsification turns out to be made by mistake, without malicious purposes, service may be resumed upon user's calling and evaluation.)
ㆍService shall be restricted if the user's system is designed to send messages also from other numbers, as well as registered sender numbers.
ㆍDamages shall be claimed for all other losses incurred out of sender number falsification

Guide for Notice of Personal Information Assignor

When the Customer uses NHN Cloud > SMS Service, assignment of personal information between the Customer and the Company arises, and the assignee, the Customer, is obliged to disclose the status (assignor and content of business) of his assignment of personal information to the Company, through the personal information handling policy, in accordance with the Act on Promotion of Information and Communications Network Utilization and Information Protection, and the Personal Information Protection Act.

Accordingly, the Company may provide guidelines as below for the Customer, to abide by relevant regulations in the use of NHN Cloud SMS Service and not to be adversely affected for not disclosing his assignment status:

(Example) [Notice of Personal Information Assignor] To use NHN Cloud SMS Service, make sure the following is displayed for 'Personal Information Handling Policy' > Assignment Status of the Customer. Assignor: NHN Cloud Content of Business: Send SMS in lieu of customers

Filter Messages from Spoofed Numbers

The 'Filter Messages from Spoofed Numbers' service protects user's own phone number from potentially spoofed for criminal acts or spamming.

Please Check

  • As a free service provided by each telecommunication provider (e.g. SKT, KT, LGU+, or MVNO providers), it only requires your agreement to get registered.
  • If your text delivery is confirmed as 'Failure' on the website, even after it is sent to an appropriate number, see if your 'Filter Messages from Spoofed Numbers' service is enabled.
  • Disable 'Filter Messages from Spoofed Numbers' first, and then try sending your message.
  • It takes about 7 days to get disabled after it is applied.

Disabling Filter Messages from Spoofed Numbers for Each Provider

Filter Spams by Telecommunication Providers

  • The service is provided by each telecommunication provider to automatically block annoying spams.
  • Texts considered as spams, by each provider's criteria, are sent to Spam Inbox, instead of Message Inbox.

Please Check

  • If your delivery result is confirmed as successful but message is still not received, see if your Filter Spams service is enabled.
  • In accordance with the comprehensive measures set by the Anti-Spam Center of Korea Internet & Security Agency, each telecommunication provider provides 'Spam-Filtering' service.
  • If your message is saved at Spam Inbox, instead of Messages Inbox, disable the spam-filtering service first.
  • Due to policy to protect personal information, no one else but you must enable or disable the service.

Disabling Filter Spams for Each Provider

Unsubscribing 080 Numbers

  • With Unsubscribe 080 Numbers, recipients can reject receiving ad messages.
  • Ads must be sent along with how to unsubscribe for free, so that recipients can reject or withdraw consent to receiving ads, without a charge.

Please Check

  • Charges for Unsubscribe 080 Numbers are not based on the delivery time, but upon the public release of each number (monthly fixed charges).
  • It takes about 3 to 4 days to get a new number for unsubscription, so one-off or repetitive service cancellation or application is not recommended.
  • Please note that a service opening cannot be cancelled while registration is reserved.
  • If you want to use the registered 080 call rejection number in other projects, you can use the Share the blocked 080 phone numbers feature.
  • 080 numbers that are cancelled from unsubscription or applied externally, delivery shall fail.

Guide to Sending International SMS Messages

  • When sending international SMS messages, please check the following key points.

Country-specific Sender ID Policy

  • International SMS messages are sent according to country-specific sender ID policies and may be treated as spam if you do not follow the sender ID policies.
  • The sending number set by the customer is not guaranteed to be exposed on the receiving device. In most cases, the messages are sent after changing the sending number to a random number in order to send international SMS messages normally.

Message Sending Policies for Certain Countries

  • In countries with strict international SMS message policies such as China and Vietnam, messages can be sent normally only if the content of the sending message is a verification number (OTP).

Billing Policy

  • International SMS messages are charged based on successful data transmission from overseas carriers.
  • The device reception result means successful data transmission to overseas carriers and may differ from the result of arriving at the actual device. Even if real users are not receiving the message, they may be included in the billing target.
  • It may take some time to check the reason for 'Not received' through the overseas carriers, and it may be difficult to confirm the exact reason.
  • The transmission quality for each country is greatly affected by the network and infrastructure environment of the country, and the transmission quality may differ from the domestic environment.

Countries Available for Message Delivery

Country name (English) Country code
Afghanistan 93
Albania 355
Algeria 213
Andorra 376
Angola 244
Argentina 54
Armenia 374
Aruba 297
Australia 61
Austria 43
Azerbaijan 994
Bahrain 973
Bangladesh 880
Belarus 375
Belgium 32
Benin 229
Bolivia 591
Botswana 267
Bosnia and Herzegovina 387
Brazil 55
Brunei Darussalam 673
Bulgaria 359
Burkina Faso 226
Burundi 257
Cambodia 855
Cameroon 237
Cape Verde 238
Central African Republic 236
Chad 235
Chile 56
China 86
Congo 242
Democratic Republic of the Congo 243
Croatia 385
Cuba 53
Cyprus 357
Czechia 420
Denmark 45
Egypt 20
El Salvador 503
Ecuador 593
Equatorial Guinea 240
Estonia 372
Ethiopia 251
Faroe Islands 298
Fiji 679
Finland 358
France 33
Gabon 241
Gambia 220
Georgia 995
Germany 49
Gibraltar 350
Greece 30
Greenland 299
Guatemala 502
Guinea 245
Hong-Kong 852
Hungary 36
Iceland 354
India 91
Indonesia 62
Iran 98
Iraq 964
Ireland 353
Israel 972
Italy 39
Ivory Coast 225
Japan 81
Jordan 962
Kenya 254
Kuwait 965
Kyrgyzstan 996
Laos 856
Latvia 371
Lebanon 961
Lesotho 266
Liberia 231
Libya 218
Liechtenstein 423
Lithuania 370
Luxembourg 352
Macau 853
North Macedonia 389
Madagascar 261
Malawi 265
Malaysia 60
Maldives 960
Mali 223
Malta 356
Mauritania 222
Mauritius 230
Mayotte 269
Mexico 52
Moldova 373
Monaco 377
Mongolia 976
Morocco 212
Mozambique 258
Myanmar 95
Namibia 264
Nauru 674
Nepal 977
Nederlandse Antillen 599
Netherlands 31
New Caledonia 687
New Zealand 64
Niger 227
Nigeria 234
Norway 47
Oman 968
Pakistan 92
Palau 680
Palestine 970
Panama 507
Papua New Guinea 675
Paraguay 595
Peru 51
Philippines 63
Poland 48
Portugal 351
Qatar 974
Romania 40
Russia 7
Rwanda 250
Saudi Arabia 966
Senegal 221
Seychelles 248
Sierra Leone 232
Singapore 65
Slovakia 421
Slovenia 386
South Africa 27
South Sudan 211
Spain 34
Sri Lanka 94
Sudan 249
Swaziland 268
Sweden 46
Switzerland 41
Syria 963
Taiwan 886
Tajikistan 992
Tanzania 255
Thailand 66
Timor-Leste 670
Togo 228
Tunisia 216
Turkey 90
Turkmenistan 993
United Arab Emirates 971
Uganda 256
United Kingdom 44
Ukraine 380
Uruguay 598
United States of America 1
Uzbekistan 998
Vanuatu 678
Venezuela 58
Vietnam 84
Yemen 967
Zambia 260
Zimbabwe 263

Guide for Sending Speed Depending on the Size of MMS Attachments

  • When sending MMS, there may be a difference in the sending speed depending on the size of the attachments.
  • The larger the size of uploaded attachments is, the slower the sending speed and the update of reception result may become due to carrier's sending speed restrictions.
  • If you want faster delivery, we recommend that you make a request by reducing the size of attachments.