| Verizon | 32927 Co Rd V5G | Dead Zone from 2 miles south of Sigourney, all the way to 4 miles north of Ottumwa | 2014 |
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| Verizon | 206 E Washington St | Dead Zone through Hedrick (30 miles) | 2014 |
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| Verizon | 200th Ave | Date service for verizon is bouces between 1x and 3g but per Verizon data maps this is a 4G area - spent some time with Verizon technical support - they indicated after researching the matter that their tower is too far south to give 4G service. They said the farther south I go on this lake the better my data service will be - I got verizon service specifically so I can stream media while anchored on my boat in this area and was some what disappointed. Also I used to work much better at this location a year ago but somehow towers changed.
Mean while my friend with US celluar got 4G service and I even did a speed test to achieve about 14 Mips with US Cellular at this location | 2015 |
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| Sprint | 2350 Lucas St | Calls being dropped, reception 2 miles away from home is non-existent. | 2014 |
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| AT&T | 201 N 1st Ave | Complete loss of service inside any building | 2014 |
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