Business Add-ons


With our 5GB Simply Business Data Add-on, it's easy to customise your plan to give you even more flexibility and value.

If you want to increase your allowance on a longer-term basis, why not consider changing your price plan? A change of price plan requires a small one-off fee, which allows you to use your new increased allowances immediately. You'll then be charged your new monthly price from the following month. Changing your price plan won't affect your plan end date.


Add data

If you or one of your employees needs more data for the rest of their current bill cycle, we can help. As the bill payer, you can add the 5GB Simply Business Data Add-on.


Add international minutes

Do you or one of your employees need minutes to make international calls from the UK? As the bill payer, you can add one of our Call Abroad Add-ons. These Add-ons will auto-renew each month, but you can cancel them at any time.

To make an international call with Call Abroad, dial 00 followed by the country code from the list below. Then, add the number you want to call. For example, if you want to call France, dial 0033 followed by the number you want to call.

Add-on name What allowance is available? When is this Add-on available? Price
Call Abroad 100 You’ll get 100 minutes to call standard landline and mobile numbers from the UK on your Three phone. This is a recurring Add-on and will refresh every month until cancelled. £5
Call Abroad Unlimited You’ll get unlimited minutes to call standard landline and mobile numbers from the UK on your Three phone. This is a recurring Add-on and will refresh every month until cancelled. £10

If you’ve purchased Call Abroad 100, we'll send you a text to let you know when you're close to using up your minutes. We’ll also send you a text to let you know when you’ve used up your allowance. Once you've used up all your minutes, you'll be charged standard international rates for making international calls from the UK.

With Call Abroad, you can call the countries below. If you want to call a country not on this list, you'll need to pay the standard international rate.

Countries Dial code Country flag Exclusions Exclusion type
Australia 61 145, 147, 2, 23 Satellite & Norfolk Island
Austria 43 810, 820, 821, 9 Toll Shared
Bangladesh 880    
Belgium 32 455, 456, 461, 463, 4640, 4651, 4652, 4653, 4654, 4655, 4656, 4657, 4658, 4659, 4660, 4661, 4662, 4663, 4664, 4665, 4666, 4669, 467, 4686, 4687, 4688, 4689 Special/Premium
Bermuda 1441 41 Special/Premium
Brunei 673    
Bulgaria 359 924, 93015, 930454, 930519, 93069, 930719, 930729, 93089, 93099, 931009, 93115, 93118, 9312389, 931339, 93134, 9313890, 931439, 931459, 931517, 931518, 931519, 93189, 931919, 9323, 9325, 93281, 933138, 933139, 93319, 93355, 93369, 93379, 93399, 9349, 935089, 93509, 9352999, 935328, 935429, 9355029, 935529, 935538, 935539, 935618, 935619, 93579, 935819, 93597, 935989, 93615, 936318, 936319, 9363285, 936329, 936419, 936519, 936619, 936798, 936799, 9369192, 937208, 93739, 937819, 93799, 9385, 939133, 93917, 93919, 94168, 94173, 94179, 9429, 94315, 94319, 943619, 94441, 9445, 94539, 94575, 94579, 9469, 947619, 94789, 951129, 9511999, 951318, 951427, 9514590, 951535, 95179, 95185, 95195, 9524, 95280, 95281, 95282, 95283, 9529, 9531099, 9531199, 9531299, 9531399, 953279, 953289, 9533090, 953419, 953518, 953619, 9536390, 95379, 95389, 95391, 9549, 95507, 955158, 955189, 95545, 95547, 95549, 955519, 95569, 955878, 95588, 95598, 956700, 956701, 95671, 9569, 95709, 957317, 957319, 957439, 957518, 957519, 95799, 9585, 95909, 959449, 95965, 9600199, 9600299, 9600399, 9600699, 9600799, 96015, 96017, 96019, 9602090, 9602290, 9602490, 9603090, 9603499, 9603800, 960398, 960399, 96058, 9607178, 960718, 960719, 96085, 96109, 9614058, 961418, 961419, 961519, 961619, 9616399, 961884, 961885, 961886, 96189, 96199, 9625, 963187, 96319, 9632049, 9649, 96509, 965138, 965148, 965149, 965159, 965419, 965618, 965619, 96585, 96592, 9669, 96709, 96759, 96769, 96779, 96789, 9685, 969418, 969419, 96979, 9700, 970131, 970139, 97019, 97029, 97079, 9711999, 971339, 971429, 97209, 97219, 972288, 97229, 97239, 97249, 97259, 97269, 97279, 97289, 9735, 97455, 97459, 97469, 97479, 97485, 97495, 97499, 97509, 97519, 975239, 975419, 9765, 977129, 97779, 9789, 9800, 981229, 981409, 981419, 981619, 9816590, 98179, 9825, 9842488, 9842489, 984249, 984319, 9843929, 984429, 9845, 9847329, 984759, 984773, 98489, 9862599, 9862699, 986368, 986369, 986420, 986428, 98649, 9865, 986605, 986608, 986639, 986690, 986698, 986699, 99105, 991238, 991329, 99159, 9916390, 991719, 9929, 993249, 99389, 9949, 99527, 99539, 995549, 9965, 99717, 99718, 99735, 997429 Other Licensed Operator
Canada 1 250232, 250233, 250234, 250235, 250237, 250239, 250471, 250500, 250771, 250772, 250773, 250774, 250775, 250776, 250779, 267, 862  
China 86    
Colombia 57    
Croatia 385    
Cyprus 357 12, 700, 77, 22222, 23232, 24024, 24242, 25262, 26026, 26262 Special/Premium
Czech Republic 420 91004, 84 Special/Premium
Denmark 45    
Estonia 372 85, 531, 532, 533, 5368, 5369, 540, 541, 542, 543, 544, 54503, 54504, 54508, 5451, 5452, 5453, 5454, 5455, 5460, 54635, 54636, 5464, 5465, 54660, 54661, 54662, 54663, 54666, 5467, 5468, 5469, 547, 548, 549, 570, 571, 572, 573, 5745, 5746, 5747, 5748, 5749, 575, 576, 577, 5788, 5789, 579, 59122, 5913, 5914, 59188, 592, 593, 594, 595, 596, 597, 598, 599, 810, 8111, 813, 814, 815, 816, 817, 819, 8200, 8210, 8211, 8213, 8219, 8222, 823, 824, 826, 8276, 8277, 8278, 8279, 3302, 40, 56039, 6297, 70, 82010, 82500, 82501 Special Services & Mobile TopConnect
Finland 358 71 Special Services
France 33 63800, 64000, 64001, 64002, 64003, 64004, 8 Special Services & Mobile Globalstar
Germany 49 115, 116, 18 Special/Premium
Greece 30 8256000 Special/Premium
Guam 1671    
Hong Kong 852    
Hungary 36    
Iceland 354    
India 91    
Ireland 353 11811, 11818, 11850, 11890, 1520, 1530, 1540, 1550, 1560, 1570, 1580, 1590, 1598, 1599, 70, 76, 818 Special / Premium
Israel 972 56, 59, 22, 42, 82, 92 Mobile Palestine
Italy 39 319 Satellite
Japan 81    
Kuwait 965    
Latvia 371 2096, 2285, 2290, 2292, 2298, 2375, 2414, 2448, 2502, 2797, 2802, 2904, 62208, 63067, 63517, 64698, 64922, 65525, 65838, 67858, 68255, 68488, 68501, 68502, 68504, 68509, 68510, 68535, 68700, 78501, 78502, 78504, 78509, 78510, 78515, 78519, 78521, 78535, 78565, 78580, 78581, 78822, 78900, 78905, 78909, 7891, 78980, 78981, 78988, 80021, 810305, 810306, 810307, 810308, 810309, 81031, 810320, 810321, 810322, 810323, 810324, 810346, 810347, 810348, 810349, 81035, 81092, 81110, 81615, 90308, 90309  
Lithuania 370 3133, 3437, 3725, 3736, 3778, 3892, 4120, 4172, 4175, 4252, 4548, 4554, 4636, 464, 700, 706, 80206, 80246 Special/Premium
Luxembourg 352 12, 901 Special/Premium
Macau 853 3  
Malaysia 60    
Mexico 52    
Mongolia 976    
Namibia 264 482, 483, 484, 485, 488, 489 Special / Premium
Netherlands 31 202626905, 20807, 382002, 660, 670, 671, 672, 6730, 6731, 6732, 6733, 6734, 67353, 67354, 67355, 67356, 67357, 67358, 67359, 6736, 6737, 6738, 6739, 674, 675, 6760, 677, 678, 679, 800, 82, 84, 85, 87, 88, 900, 906, 909 Personal numbers
New Zealand 64    
Norway 47 02, 03, 04, 05, 06, 07, 08, 09, 1, 810, 811, 812, 813, 814, 815, 85, 880 Special Services
Paraguay 595    
Poland 48 1268, 2219, 3245,45920, 45950, 528809, 57942, 57946, 57948, 57953, 614236, 7000, 717079, 72977, 73993, 814503, 918820 Special / Premium
Portugal 351    
Puerto Rico 1787/1939    
Romania 40 118, 9 Special Services
San Marino 378 6, 55, 58, 7 Special Services
Singapore 65    
Slovakia 421 65080, 900220, 900221, 900222, 900223, 900224 Special / Premium
Slovenia 386 43, 49 Special / Premium
Spain 34 51, 70, 90 Special Services
Sweden 46    
Switzerland 41 74, 7698, 7699, 860, 8607698, 8607699, 8607840, 8607841, 7730, 7731, 77357, 8607730, 8607731, 86077357, 779, 860779 Special Services
Thailand 66    
USA 1    

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