generate pseudo phone numbers

gen_phone.py

import random
import numpy as np
import pandas as pd


headers = ['134', '135', '136', '137', '138', '139',
'147', '150', '151', '152', '157', '158', '159', 
'165', '172', '178', '182', '183', '184', '187', '188', '189',
'130', '131', '132', '145', '155', '156', '166', '171', '175', '176', 
'185', '186', '133', '149', '153', '173', '177', '180', '181', '189', '199' ]

minimum = 0
maximum = 99999999
n_phones = 10000

phones = []
for _ in range(n_phones):
    head = random.choice(headers)
    body = random.randint(minimum, maximum)
    str_body = str(body).zfill(8)
    phone = head + str_body
    phones.append(phone)
np_phones = np.array(phones).reshape(n_phones, 1)
pd_phones = pd.DataFrame(np_phones)
pd_phones.to_csv('phones.csv', index=False, header=False)