what is the difference in the number of mobile prefixes between the company with the most and the company with the least?
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col : network | company | mobile prefixes | mobile examples | landline prefixes | landline examples | notes row 1 : beeline | sotelco ltd. | 031 (+ 7 digits)\n060 (+ 6 | +855 31 234 5678\n+855 60 2 | ndc + '46' + 4-5 digits | +855 23 461 2346\n+855 64 4 |  row 2 : mobitel | camgsm co., ltd. | 011 (+ 6 digits)\n012 (+ 6-7 | +855 76 234 5678\n+855 12 | - | - | also known as cellcard\nincorporates the former mfone row 3 : cootel | xinwei (cambodia)\ntele | 038 (+ 7 digits) | +855 38 383 8380 | ndc + '47' + 4-5 digits | +855 23 471 2346\n+855 64 4 |  row 4 : excell | gt-tell (cambodia)\ninvestment co | 018 (+ 6 digits) | +855 18 234 567 | - | - |  row 5 : metfone | viettel (cambodia)\npte. | 088 (+ 7 digits)\n097 (+ 7 | +855 88 234 5678\n+855 | - | - |  row 6 : qb | cambodia advance communications\nco., ltd. (cadcomms) | 013 (+ 6 digits)\n080 (+ 6 | +855 13 234 567 | - | - |  row 7 : smart | smart axiata co., ltd | 010 (+ 6 digits)\n015 (+ 6 | +855 96 234 5678\n+855 10 | ndc + '45' + 4-5 digits | +855 23 451 2346\n+855 64 4 | incorporates the former hello axiata
what is the difference in the number of mobile prefixes between the company with the most and the company with the least?
Network Company Mobile Prefixes Mobile Examples Landline Prefixes Landline Examples Notes
Beeline Sotelco Ltd. 031 (+ 7 digits)\n060 (+ 6 digits)\n066 (+ 6 digits)\n067 (+ 6 digits)\n068 (+ 6 digits)\n090 (+ 6 digits) +855 31 234 5678\n+855 60 234 567 NDC + '46' + 4-5 digits +855 23 461 2346\n+855 64 461 234
Mobitel CamGSM Co., Ltd. 011 (+ 6 digits)\n012 (+ 6-7 digits)\n017 (+ 6 digits)\n061 (+ 6 digits)\n076 (+ 7 digits)\n077 (+ 6 digits)\n078 (+ 6 digits)\n085 (+ 6 digits)\n089 (+ 6 digits)\n092 (+ 6 digits)\n095 (+ 6 digits)\n099 (+ 6 digits) +855 76 234 5678\n+855 12 123 4567\n+855 12 234 567\n+855 92 123 456 - - Also known as Cellcard\nIncorporates the former Mfone
CooTel Xinwei (Cambodia)\nTelecom Co., Ltd 038 (+ 7 digits) +855 38 383 8380 NDC + '47' + 4-5 digits +855 23 471 2346\n+855 64 471 234
Excell GT-TELL (Cambodia)\nInvestment Co., Ltd. 018 (+ 6 digits) +855 18 234 567 - -
Metfone Viettel (Cambodia)\nPte., Ltd. 088 (+ 7 digits)\n097 (+ 7 digits) +855 88 234 5678\n+855 97 234 5678 - -
qb Cambodia Advance Communications\nCo., Ltd. (CADCOMMS) 013 (+ 6 digits)\n080 (+ 6 digits)\n083 (+ 6 digits)\n084 (+ 6 digits) +855 13 234 567 - -
Smart Smart Axiata Co., Ltd 010 (+ 6 digits)\n015 (+ 6 digits)\n016 (+ 6 digits)\n069 (+ 6 digits)\n070 (+ 6 digits)\n081 (+ 6 digits)\n086 (+ 6 digits)\n087 (+ 6 digits)\n093 (+ 6 digits)\n096 (+ 7 digits)\n098 (+ 6 digits) +855 96 234 5678\n+855 10 234 567 NDC + '45' + 4-5 digits +855 23 451 2346\n+855 64 451 234 Incorporates the former Hello Axiata
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