Sure, you've called every number you've found on those hard-to-get Collectibles, but you certainly haven't found all of the phone numbers. Chances are, you've overlooked a phone number or two without even knowing it as you ripped out a goon's heart. All 25 'secret' phone numbers are scattered throughout New York and can be seen on anywhere from flyers and storefronts to garbage cans and posters. Dial 18 of the 25 on a phone ( in no specific order ) to unlock the final secret of the game.

Effect - Code

Secret 01 - 555-6118
Secret 02 - 555-1847
Secret 03 - 555-6667
Secret 04 - 555-4569
Secret 05 - 555-9985
Secret 06 - 555-1037
Secret 07 - 555-1206
Secret 08 - 555-9528
Secret 09 - 555-3285
Secret 10 - 555-5723
Secret 11 - 555-8024
Secret 12 - 555-6322
Secret 13 - 555-9132
Secret 14 - 555-6893
Secret 15 - 555-2402
Secret 16 - 555-6557
Secret 17 - 555-2309
Secret 18 - 555-4372
Secret 19 - 555-9723
Secret 20 - 555-5289
Secret 21 - 555-6205
Secret 22 - 555-7658
Secret 23 - 555-1233
Secret 24 - 555-3947
Secret 25 - 555-9562
Secret 26 - 555-7934
Secret 27 - 555-7892
Secret 28 - 555-8930
Secret 29 - 555-3243
Secret 30 - 555-3840
Secret 31 - 555-2349
Secret 32 - 555-6325
Secret 33 - 555-4565
Secret 34 - 555-9898
Secret 35 - 555-7613
Secret 36 - 555-6969