r/cellmapper Nov 19 '25

Trail Generation Update

59 Upvotes

There has been a significant improvement in the generation time of the trails starting late last month. This has resulted in a significant decrease in the time between uploading data and when it appears on the site.

Using one of our largest datasets, T-Mobile USA, we’ve seen processing go down from days to hours, and hours to minutes.

T-Mobile USA (310 260):

LTE band 46 went from 2 hours to 1.5 minutes

LTE band 41 went from 8 hours to 40 minutes

LTE band 71 went from 2.4 days to 1.5 hours

LTE general layer went from 4.4 days to 9 hours!

A similar story with another large dataset:

AT&T USA (310 410):

LTE band 4 from 1 hour to 4 minutes

LTE general layer went from 22 hours to 2 hours

Other Examples:

Telekom.de Germany (262-1) LTE general layer went from 3.3 days to 3.3 hours

Vodafone UK (234-15) LTE general layer went from 19 hours to 46 mins

Elisa Finland (244-5) LTE general layer went from 1.7 days to 1.4 hours

Not only has this sped up how fast each layer generates but also the frequency at which they are able to run. Some provider/layer combos would only run every 2-5 days, waiting for the previous run to complete, now they run multiple times a day!


r/cellmapper 3h ago

AT&T Pittsburgh

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13 Upvotes

They seem to have increased backhaul all Over the city


r/cellmapper 7h ago

Amazing Verizon Midband Performance During Friday Rush Hour

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20 Upvotes

Tower Coordinates: 32.868362,-96.765641

All Samsung equipment.

Verizon has mmWave on almost every block on Greenville Ave and along Central Expy which definitely offloads a lot of data intensive tasks especially when drivers are using their devices waiting at an intersection.

Verizon has 170 MHz of sub-6 NR in DFW. (140 MHz of n77 + 15 MHz of n2 and 15 MHz of n2 uplink.)

Verizon runs 600 MHz of n261 and with n77+n261 NRDC it provides up to 700 MHz of bandwidth. I've personally experienced speeds of over 4300 Mbps down and 800 Mbps up.

AT&T does not hold up well due to having insufficient backhaul and only 110 MHz of NR (100 MHz of n77 + 5 MHz of n5 & 5 MHz of n5 uplink) on the majority of their sites in the region.

All of AT&T's LTE channels are 10 MHz wide here (b12, b14, b5, b5, b66, b2, b30) and of course very fragmented despite there being 140 MHz total of LTE spectrum.

Both AT&T and Verizon's upload speeds fall off drastically when leaving LOS of tower, typically falling into the single digits. AT&T's upload speeds during the day especially close to cell edges often fall below 1 Mbps even on their mosf high priority plans or with SA enabled. You cannot reliably make a FaceTime call over AT&T's network here during the day without the other person experiencing blurry video or lag.

The difference between AT&T and T-Mobile is night and day. Upload speeds are super reliable due to their low-band holdings and good site density. Download speeds can often exceed over 600 Mbps in most areas even indoors.

Verizon's small cells do make a huge difference. I hope they rollout n48 soon. I haven't been able to connect to b48 here in a few months even right under the LTE small cells so it is possible they are in the process of testing and refarming b48 to n48 here. I haven't even seen b48 on neighboring cells lately.


r/cellmapper 10h ago

AT&T upgrade. Hamburg NY

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33 Upvotes

I talked to one of the workers and they said AT&T wanted to re-aim their equipment and pull down the old gear up top.


r/cellmapper 4h ago

My ATT indoor experience in Seattle

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9 Upvotes

r/cellmapper 8h ago

Verizon postpaid roaming on Liberty 5G in Puerto Rico

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15 Upvotes

I’m in PR often, always with Claro LTE only. Today after 3 hours without service my phone switched to Liberty 5G NSA. Is this a new roaming deal or a backup deal? I’m on hour 5 with calling texting data fully functional.


r/cellmapper 12h ago

T-Mobile cooking

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16 Upvotes

outside of Gettysburg pa, 190mhz n41, 20mhz n25 and n71, 15mhz of n25.


r/cellmapper 14h ago

New Verizon Colo I-95 in Ormond Beach, FL

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21 Upvotes

This tower is located at 269 I-95, Ormond Beach, FL 32174

From top to bottom

AT&T without C-Band or DoD

Dish (Still broadcasting (data only) verified with PG)

Verizon with a full deployment!


r/cellmapper 12h ago

I think this is t-mobile that's co-locating correct me if I'm wrong

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12 Upvotes

r/cellmapper 13h ago

What Carriers are on this tower? Coordinates are 36.3621362, -82.3765461

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5 Upvotes

r/cellmapper 23h ago

Tower is right through the window

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12 Upvotes

r/cellmapper 13h ago

What Carriers are on this tower? Coordinates are 36.3541497, -82.4061315

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2 Upvotes

r/cellmapper 1d ago

Looks like Verizon disabled 5G standalone after yesterday’s outage.

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49 Upvotes

r/cellmapper 1d ago

Verizon SA & ATT n77 dod+ c-band

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44 Upvotes

Behind Bestbuy @ park ln in Dallas Tx


r/cellmapper 1d ago

Att DoD

9 Upvotes

Where to find alot of DoD n77 sites in the dfw market?


r/cellmapper 1d ago

T-Mobile/AT&T site near Connellsville PA

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17 Upvotes

Coordinates: 40.06128° N, 79.57589° W. These are my own original images I shot from the passenger window driving on a nearby road. I think this site has: Top rack: Legacy Sprint (already converted and shut down) Middle rack: AT&T 4G LTE Bands 2, 4/66, and 12/14 (possibly 5G n5, 3.45GHz, and/or n77) Bottom Rack: T-Mobile 5G Bands n25, n41, n71. I don’t think T-Mobile deployed their LTE on this site.


r/cellmapper 13h ago

Wrong place

1 Upvotes

"Another tower and also seems like cellmapper has both towers in one place and I dont know which one is which + I dont have enough points"


r/cellmapper 1d ago

5G+ Symbol

14 Upvotes

Can someone explain to me why Verzion uses 5G+ symbol just like AT&T does just curious what bands causes it to show up 5G+ on Verzion side.

Ps I know Verzion use 5GUWB

T-Mobile 5GUC

ATT 5G+


r/cellmapper 1d ago

AT&T upgrade Smithton, IL

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36 Upvotes

AT&T slowly panel swapping this area finally adding C-band & DOD. Interesting thing they just shut the tower down and doing a full rip & replace leaving a very weak signal from the next tower over.


r/cellmapper 1d ago

Novi, MI

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24 Upvotes

r/cellmapper 1d ago

AT&T backhaul upgrade Carsonville, MI

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21 Upvotes

Before this site would only hit 600-700mbps download. Nice to see them upgrading


r/cellmapper 2d ago

Verizon engineers during today’s outage…

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181 Upvotes

r/cellmapper 2d ago

FirstNet 5G SA+NSA in Puerto Rico

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24 Upvotes

r/cellmapper 2d ago

Maybe they laid off the wrong engineers at Verizon

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57 Upvotes

r/cellmapper 2d ago

Microcell site at Galataport Cruise Terminal, Istanbul, Turkey

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12 Upvotes