The future is here, whether you like it or not. Wi-fi is now available at every Upper West Side subway station from 96th street south, on both the B, C lines and the 1, 2, and 3 lines, the MTA said today.

In addition, cell service is accessible to anyone with AT&T and T-mobile phone/data contracts, and is expected to eventually support Verizon and Sprint phones, if they can hash out a contract. The wi-fi service is provided through a network called Boingo. All 241 subway stations are expected to get wi-fi within four years.

This program has been in place for more than a month at some Upper West Side stations, but there’s been a catch. When Boingo can’t find an outside sponsor for the wi-fi, it has been asking the user for payment to use the network. For now, HTC is sponsoring the wi-fi, but if Boingo doesn’t have a sponsor it may end up asking for payment again. Is anyone going to be willing to fork over a monthly charge for a few minutes of service before their train arrives? (Also, the sponsors tend to make you watch a video or comb through ads about their product before you can get to your desired site.)

Transit Wireless, the contractor installing the system,  has not responded to our questions about whether the wi-fi will be free if there is no sponsor.

Update: Transit Wireless provided the statement below.

“Boingo has secured a steady stream of sponsorship partners for the subway network over the past year, including Google Offers, Microsoft, Norwegian Cruise Lines, and the subway network’s current sponsor, HTC One. Boingo is always working to ensure a full pipeline of future sponsors to provide ongoing complimentary access to subway station Wi-Fi.”

Here’s the full list of stations with access:

*1	23 Street – 8 Ave.
*2	14 Street – 8 Ave.
*3	14 Street – 7 Ave.
*4	14 Street – 6 Ave.
*5	14 Street – 8 Ave.
*6	14 Street – 6 Ave.
7	96 Street
8	86 Street
9	28 Street
10	18 Street
11	81 Street-Museum of Natural History
12	72 Street
13	79 Street
14	23 Street
15	96 Street
16	66 Street-Lincoln Center
17	72 Street
18	57 Street
19	47-50 Streets-Rockefeller Center
20	57 Street-7 Ave.
21	28 Street
22	50 Street
23	50 Street
24	23 Street
25	49 Street
26	5 Ave.-53 Street
27	59 Street-Columbus Circle
28	59 St-Columbus Circle
29	7 Ave.
30	Times Square-42 Street
31	Times Square-42 Street
32	Times Square-42 Street
33	Times Square-42 Street
34	Times Square-42 Street
35	5 Ave.-59 Street
36	86 Street

Photo via MTA.