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Telephone Numbering Facts
Click on a link in the table below to download a report.
File names ending with a .PDF extension can be viewed
using Adobe Acrobat
Reader. File names ending with a .ZIP extension contain word processing
and spreadsheet files.
| File Names and Contents |
Numbering Resource Utilization in the United States. Provides
statistical information on telephone number utilization. The .pdf
file contains the report and, where provided, the .zip file contains
the spreadsheet used to create the tables.
Data as of June 30, 2008. Released 03/13/2009. News
Release | Report (Acrobat
Format)
Data as of December 31, 2007. Released 08/28/2008. News
Release | Report (Acrobat
Format)
Data as of June 30, 2007. Released 03/21/2008. News
Release | Report (Acrobat
Format)
Data as of December 31, 2006. Released 02/01/2008. News
Release | Report (Acrobat
Format)
Data as of June 30, 2006. Released 08/08/2007. News
Release | Report (Acrobat
Format)
Data as of December 31, 2005. Released 01/17/2007. News
Release | Report (Acrobat
Format)
Data as of June 30, 2005. Released 05/02/2006. News
Release | Report (Acrobat
Format)
Data as of December 31, 2004. Released 08/08/2005. News
Release | Report (Acrobat
Format)
Data as of June 30, 2004. Released 3/05. UTILIZATIONJUN2004.PDF
(167K)
Data as of December 31, 2003. Released 5/04. UTILIZATIONDEC2003.PDF
(537K)
Data as of June 30, 2003. Released 12/03. UTILIZATIONJUN2003.PDF
(151K)
Data as of December 31, 2002. Released 7/03. UTILIZATIONDEC2002.PDF
(137K)
Data as of December 31, 2001. Released 8/02. UTILIZATIONDEC2001.PDF
(205K)
Data as of June 30, 2001. Released 11/01. UTILIZATIONJUN2001.PDF
(102K) or UTILIZATIONJUN2001.ZIP
(85K)
Data as of December 31, 2000. Released 6/01. UTILIZATIONDEC2000.PDF
(172K)
Data as of June 30, 2000. Released 12/00. UTILIZATIONJUN2000.PDF
(457K) |
Miscellaneous data relating to Numbering Resource Utilization
in the United States.
Form 502 Filers.
As of 12/31/05.
Filers2005-12.ZIP
(79K)
As of 6/30/05.
Filers2005-06.ZIP
(76K)
As of 12/31/04.
Filers2004-12.ZIP
(82K)
As of 6/30/04.
Filers2004-06.ZIP
(73K)
As of 12/31/03.
Filers2003-12.ZIP
(86K)
As of 6/30/03.
Filers2003-06.ZIP
(85K)
Rate Center Data.
As of 12/31/05.
RCData2005-12.ZIP
(541K)
As of 6/30/05.
RCData2005-06.ZIP
(541K)
As of 12/31/04.
RCData2004-12.ZIP
(534K)
As of 6/30/04.
RCData2004-06.ZIP
(521K)
As of 12/31/03.
RCData2003-12.ZIP
(787K)
As of 6/30/03.
RCData2003-06.ZIP
(739K)
Thousands Blocks Data.
As of 7/10/06.
ThousandsBlocksFor2005-12.ZIP
(4,060K)
As of 10/17/05.
ThousandsBlocksFor2005-06.ZIP
(3,050K)
As of 4/28/05.
ThousandsBlocksFor2004-12.ZIP
(2,410K)
As of 10/15/04.
ThousandsBlocksFor2004-06.ZIP
(1,350K)
As of 4/4/04.
ThousandsBlocksFor2003-12.ZIP
(980K)
As of 10/28/03.
ThousandsBlocksFor2003-06.ZIP
(752K) |
| Metropolitan Statistical Areas with rate center names. This
file lists Metropolitan Statistical Areas (MSAs) and their corresponding
rate centers. It uses rate center names as they appear in the January
2001 Local Exchange Routing Guide (LERG). Posted 3/01. MSARateCenterNames.ZIP
(139K) |
Long Distance Carrier Code Assignments. The North American
Numbering Plan Administrator (NANPA) provides updated information
on Area Codes, ANI II Digits, Carrier Identification Codes, N11 Codes,
Vertical Service Codes, Central Office Codes, 456-NXX Codes, 500-NXX
Codes, 555-Line Numbers, 800-855 Line Numbers, and 900-NXX Codes.
(See http://www.nanpa.com/number_resource_info/index.html).
The below reports provide historical information on carrier identification
codes (CICs), 500 and 900 service code assignments and the number
of toll-free numbers (800 and 888).
1st Quarter 1997. Released 6/97. LDC1Q97.PDF
(821K) or LDC1Q97.ZIP
(416K)
4th Quarter 1994. Includes a state-by-state listing of carriers
purchasing equal access. LDC4Q94.ZIP
(284K) |
Central Office Code Usage Report.
Released 07/93. COCUR93.ZIP
(211K) |
Additional Information
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