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Old 11-20-2005, 09:37 AM   #1
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Identifying / Cross Referencing a Cell Base Station

Does anyone know how to cross reference the information I can read electronically off a cell phone with the FCC's list of registered base stations - the FCC list is keyed on "registration number" but I can't find any of this data at the FCC.

Does anyone understand how to link this back to the FCC data? What I'm ultimately trying to get to is a street address or long / lat of the base station a cell phone is talking to at any given moment.

Here is the data I see with my test program on my cell phone (IMEI changed for security purposes but the rest is exact):

GPRS State: Standby
IMEI: 0123456.00.987654.5
Zone:
Reg Addr: null
Cell ID: 1173
Base Station ID: 55
Location Area Code: 21242
Routing Area Code: 1
Absolute Radio Frequency Channel Number: 526

Would really appreciate some help.
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Old 11-21-2005, 10:57 PM   #2
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What is the URL of this specific list at the FCC? They have so many databases that I get lost there. ops:

I would definitely attempt to get the FCC to assist by filling out an Online Help Request or calling their help desk at (877) 480-3201.
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Old 11-21-2005, 11:09 PM   #3
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That base station you were connected to, was it this one?

Code:
EN|12637|||KNKN905|L|L00001173|TEXAS RSA 9B1 LIMITED PARTNERSHIP|||||4692297422|4692297297|KELLYE.E.ABERNATHY@CINGULAR.COM|5601 LEGACY DRIVE, MS:  A-3|PLANO|TX|75024||FCC GROUP|000|0001666023|P|
That is from "en.dat" inside l_cell.zip.

I believe the fields are:
Code:
1 Record Type [MK] char(2)
2 Unique System Identifier numeric(9,0)
3 ULS File Number char(14)
4 EBF Number varchar(30)
5 Call Sign char(10)
6 Market Code char(6)
7 Channel Block char(4)
8 Submarket Code integer
9 Market Name char(30)
10 Coverage - Partitioning char(1)
11 Coverage - Dissagregation char(1)
12 Cellular Phase ID smallint
13 Population numeric(9,0)
14 Tribal Credit Indicator char(1)
15 Tribal Credit Calculation money
16 Additional Tribal Credit Requested money
17 Tribal Credit Awarded money
18 Additional Tribal Credit Awarded money
19 Percentage of Bidding Credit numeric(5,4)
20 Open/ Closed Bidding char(1)
This would make your "Cell ID" field equal to their "Channel Block" field.

It does seem very uncomfortable that this is a four character field, but it does seem to match.

Then, if you do a Callsign Query, you get this very informative record for KNKN905.

Of course, the trouble is that this record contains two Antenna Structure Registration Numbers: 1048402 and 1048398.

So then we go the the Antenna Structure Registration Search and we view the records for 1048402 and 1048398.

Of course, this all rests upon a key assumption early in this post. I am anxious to see if that is the right tower.
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