“A Mobile” Korea SIM


  • Unlimited Data, 100 min Calls, 100 Texts within S. Korea
  • Runs on a nationwide super fast 4G LTE KT network
  • Int’l & Express Domestic Shipping available
  • Learn more detail, Tap flag!

Save Up To 13% OFF !

Product Price
3-Day 23.8-> 21.4
5-Day 27.9-> 24.8
7-Day 31.3-> 28.5
10-Day 37.2-> 33.6
15-Day 47.1-> 42.5
30-Day 69.0-> 60.3
Unit : USD $, Surtax 10% included.
Worldwide shipping is available from Seoul, Korea
Int’l & express domestic shipping charges is as follows.
US$ 3.00 flat fee on orders 3, 5, 7 Days Plans
Free Shipping on orders 10, 15, 30 Days Plans
Super Fast 4G LTE Data Speeds : Avg.120 Mbps
After 10GB of usage, Data speeds limited 400kbps
Voice Talk by using Skype, LINE..etc. is available when connected to Wi-Fi Zone.
Tethering is available
Free incoming Int’l Call, Text
You can use the SIM Card immediately after registering the date you want to use it.
SIM Credit expiration is counted based on your registered using date by yourself.
Notice on credit balance
Text message of credit balance is given if you used up 80% of your given call & text credit (100min/100text).
For keep using data, calls, texts, it’s recommend to top up your credit as received message and Top-up guidance is listed as below.
LTE data service may be interrupted as your credit balance runs out if you used up all your given call & text credit.
Notice on Local call
Calls to the number (such as 1588, 1577, 02-1588), telephone information service (060), TRS (013), domestic video call and personal number service (050) are strictly limited.
Credit balance may run out and the data service be interrupted if you call the number above.
Just ANNEX Telecom Customer Center (1544-4344) is available only.

<< Notices>>

We inform you of the shipping schedule for 2018 Lunar New Year Holidays (Feb 15 to Feb 18) as follows.
No shipping Period : From Feb 14 to Feb 18 (KST)
Shipping will resume on Feb 19th

Order Now!

Step 1. Order & Payment >> Step 2. Shipping >> Step 3. Registering SIM for Activation
1 Step 1
Customer Details
First Name
Last Name
Order Details
Start Date
Delivery DetailsRecipient’s full Name, full address with ZIP code, Contact phone Number(if possible)
0 /
I confirm my phone is unlocked.
Order Notes
0 /
Order productQtyTotal
A Mobile SIM (3/5/7/10/15/30 DAYS) + Shipping Fee[field60][[field48*field60]

Order Checkpoints

This SIM Card is valid for visitors to Korea.
If user is of Korean nationality, You must own a proper visa which proves you are staying overseas such as permanent resident card, student visa, etc. You must upload one photo taken together with your passport and one of them.
Please check 4 points : “Unlocked phone, Compatible phone, SIM Size, Delivery Time”.
Customers using phone activated in USA, Canada, Japan, have to make sure that your phone should be unlocked.
Your phone must support on one of GSM N/W frequencies below.
4G Bands : Band1(2100MHz), Band3(1800MHz), Band8(900MHz)
3G Bands : HSDPA 2100MHz/HSDPA+
Not Supported TD-SCDMA,TD-LTE Bands

Payment Checkpoints

Visa, Master American Express, Discover or PayPal account are accepted.
You can pay with your credit card as a guest on the PayPal Page by Choosing “Pay with my credit or debit card” instead “Log in” if you don’t have PayPal account.
If you are having difficulty paying via PayPal, Naver Shopping Mall for Korean is another way. Click N Pay!
After placing an order, you will receive “Thank you” mail. If you didn’t receive it, please check your spam or junk email folder or notify us by email.
If not paid, it does not proceed to the next step.

Shipping Checkpoints

For Domestic Shipping Time
You will receive your item in the mail of fast registration.
When ordering before 4 pm (KST) weekdays : Next Day
When ordering from after 4:00 pm of Friday to weekend : Next Tuesday
For Int’l Shipping Time
14 to 21 Business Days
You will receive it in the international trade by Air.
No shipping on weekends or Public holidays
Shipping times may vary during peak periods.
After shipping, you will receive tracking number to check the shipping status.
Choose EMS and Track/Confirm on the Menu.
Input tracking number to search it.

SIM Registration for Activation Checkpoints

You are needed to register SIM before using it.
We recommend to register SIM on schedule date you want to use it in advance.
This is to ensure that your SIM works well with trouble free on arriving and switching SIM in Korea.
ANNEX TELECOM Customer Service Center
“A Mobile” SIM Card is powered by ANNEX TELECOM, KT MVNO.
82-1544-4344(overseas), 1544-4344(domestic)
Working hours
Mon ~ Fri : 09 am ~ 08 pm(12 ~ 1 pm Lunch break)
Weekend & Holidays : 09 am ~ 06 pm

Top-Up  Checkpoints

Top up in addition as the following cases.
When you receive text message that the used amount for calls/texts reaches 80% of its’ given amount
When data service is interrupted (For keeping on using data,texts calls)
When you want to extend using period (Maximum Term : 30 days)
Top-up amount is KRW3,000 per day
How to top up by using app
Download the “WHOMSIM” application from the Android, IOS app store
Choose Language and Top Up
Choose payment options
Input your mobile phone number given A Mobile
Choose Top-up amount
Pay with your credit card
That’s folk all

Getting Started SIM

Setting configures the correct data APN automatically
1. Turn off your phone
2. Switch SIM into your phone
3. Turn on & Check KT 4G LTE Signal on your phone
4. Enjoy unlimited data on your phone
Troubleshooting Tips, SIM
Try to do as follows if KT 4G LTE Signal is not connected
1. From the Home screen, Tap Menu, then Settings
2. Turn off Airplane and Wi-Fi
3. Power OFF 2 ~3 times & Check KT 4G LTE Signal
4. Do KT APN Setting if KT 4G LTE not connected

Return & Refund

Send us email promptly if you want to cancel your order.
According to Order Status, it is subjected to following our policy.
Before Shipping : No cancellation fee
After Shipping: USD $10 Handling fee will be charged.
30 days after purchase: Non-Refundable
You will get a refund according to the cancellation policy.
Once Prepaid Data SIM opened, it is strictly not refundable once sold.
Refund of balance will be paid back by PayPal account.
You can return your order within 30 days of purchase.
To receive a refund of the purchase price of your Prepaid Korea SIM Card, you must return it (with original packaging and all contents) within the Return Period in undamaged condition.
Your return is subject to a handling fee. Refunds for your order will not be processed until we have verified your order was received by our shipping company.
To return an item, ship SIM in its original packaging to:
ATTN : NeoKOSIM (Sunae Chung) Return
133-2601, 20, Hagui-ro,Dongan-gu, Anyang-si, Korea, 14044
Contact Us

We're not around right now. But you can send us an email and we'll get back to you, asap.

Not readable? Change text.

Start typing and press Enter to search