Carrier group · Wireless Carrier · 74 member OCNs
AT&T
Holding: AT&T Inc
Total blocks
265,508
Recent (18 mo)
21,753
Medium
18,984
Old
124,960
Member OCNs
74
States
54
Area codes
377
First assigned block
1998-10-23
1998-10-23
Last assigned block
2026-03-31
2026-03-31
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About AT&T
AT&T Mobility, LLC is a wireless telecommunications provider offering mobile voice, text, and data services across the United States. It primarily serves consumer and business customers through postpaid and prepaid plans. As the third largest wireless carrier with 109.3 million subscribers as of March 31, 2026, it operates a nationwide network including the second-largest 5G footprint.
- Parent: AT&T Inc.
- Founded: 2000
- Headquarters: Brookhaven, GA
- Services: wireless retail, 5G network, postpaid plans, prepaid plans, MVNO hosting
Sources: AT&T Mobility - Wikipedia · Wireless Phone Services: Cell Phones & Phone Plans I AT&T · Complete list of AT&T Wireless MVNO carriers in 2025
Headquarters: Atlanta, GA
From New Cingular Wireless PCS LLC - IL (OCN 6534), the largest member of the AT&T group.
Carrier website
att.com: opens in a new tab
Block portfolio at a glance
By age
- Recent (21,753). Last 18 mo
- Medium (18,984)
- Old (124,960)
- Undated (99,811)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- California CA · 40,782 · 1,785
- Texas TX · 37,227 · 1,537
- Florida FL · 16,035 · 1,319
- Georgia GA · 13,954 · 1,447
- Illinois IL · 9,721 · 1,475
- New York NY · 8,852 · 1,095
- Missouri MO · 8,750 · 524
- North Carolina NC · 8,306 · 514
- Pennsylvania PA · 7,810 · 1,252
- Michigan MI · 6,786 · 800
- Ohio OH · 6,240 · 861
- Oklahoma OK · 5,988 · 289
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from AT&T's recent issuances
Numbers in blocks issued in the last 18 months whose digits spell a useful word. Filter by state and category to find one for your business. ★ marks Mike's curated standouts.
| Number | Spells | Category | State | Block issued |
|---|---|---|---|---|
| (227) 266-7269 ★ | COMPANY | Business | MD | 2024-12-19 |
| (472) 266-7269 ★ | COMPANY | Business | NC | 2025-02-20 |
| (730) 266-7269 ★ | COMPANY | Business | IL | 2025-03-07 |
| (835) 266-7269 ★ | COMPANY | Business | PA | 2025-05-21 |
| (227) 266-7883 ★ | COMPUTER | Computer / Hardware | MD | 2024-12-19 |
| (472) 266-7883 ★ | COMPUTER | Computer / Hardware | NC | 2025-02-20 |
| (730) 266-7883 ★ | COMPUTER | Computer / Hardware | IL | 2025-03-07 |
| (835) 266-7883 ★ | COMPUTER | Computer / Hardware | PA | 2025-05-21 |
| (229) 797-8367 ★ | SYSTEMS | Technical / Electronics / Software | GA | 2026-02-20 |
| (865) 797-8367 ★ | SYSTEMS | Technical / Electronics / Software | TN | 2025-09-22 |
| (385) 633-4225 ★ | MEDICAL | Health Care / Medical / Hospitals | UT | 2025-04-14 |
| (234) 463-6762 ★ | INFORMATION | VAN | OH | 2026-01-26 |
| (681) 463-6762 ★ | INFORMATION | VAN | WV | 2025-09-04 |
| (786) 463-6762 ★ | INFORMATION | VAN | FL | 2025-02-07 |
| (806) 463-6762 ★ | INFORMATION | VAN | TX | 2026-01-14 |
| (505) 642-4235 ★ | MICHAEL | Male / Masculine Names | NM | 2024-11-25 |
| (227) 287-4637 ★ | BUSINESS | Business | MD | 2025-07-10 |
| (228) 287-4637 ★ | BUSINESS | Business | MS | 2025-09-15 |
| (279) 287-4637 ★ | BUSINESS | Business | CA | 2025-08-20 |
| (380) 287-4637 ★ | BUSINESS | Business | OH | 2025-02-13 |
| (445) 287-4637 ★ | BUSINESS | Business | PA | 2024-12-20 |
| (472) 287-4637 ★ | BUSINESS | Business | NC | 2026-03-03 |
| (582) 287-4637 ★ | BUSINESS | Business | PA | 2025-10-16 |
| (640) 287-4637 ★ | BUSINESS | Business | NJ | 2025-07-07 |
| (730) 287-4637 ★ | BUSINESS | Business | IL | 2025-11-25 |
| (808) 287-4637 ★ | BUSINESS | Business | HI | 2026-02-20 |
| (835) 287-4637 ★ | BUSINESS | Business | PA | 2026-01-21 |
| (930) 287-4637 ★ | BUSINESS | Business | IN | 2025-10-16 |
| (938) 287-4637 ★ | BUSINESS | Business | AL | 2025-04-09 |
| (331) 337-4467 ★ | DESIGNS | Printing / Markers / Pens | IL | 2025-01-09 |
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Member OCNs
74 OCNs roll up under AT&T.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 58,704 | 6,826 |
| 6214 | New Cingular Wireless PCS LLC - GA | Atlanta, GA | Wireless Carrier | 40,046 | 5,473 |
| 6010 | New Cingular Wireless PCS LLC | Kirkland, WA | Wireless Carrier | 38,106 | 3,019 |
| 4036 | New Cingular Wireless PCS LLC - DC | Atlanta, GA | Wireless Carrier | 30,944 | 4,342 |
| 9533 | Southwestern Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 26,095 | · |
| 9740 | Pacific Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 18,541 | · |
| 9417 | Bellsouth Telecommunications Inc dba Southern Bell Telephone & Telegraph | Atlanta, GA | Regional Bell Operating Company | 15,734 | · |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 5,935 | 113 |
| 8300 | Teleport Communications America LLC - FL | Staten Island, NY | Competitive Local Exchange Carrier | 1,704 | 62 |
| 7136 | Teleport Communications America LLC - IL | Staten Island, NY | Competitive Local Exchange Carrier | 1,636 | 144 |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 1,597 | 61 |
| 7140 | TC Systems Inc - NY | Staten Island, NY | Competitive Local Exchange Carrier | 1,427 | 10 |
| 7139 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 1,331 | 81 |
| 7145 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 1,316 | 45 |
| 7138 | Teleport Communications America LLC - TX | Staten Island, NY | Competitive Local Exchange Carrier | 1,305 | 25 |
| 7148 | Teleport Communications America LLC - TX | Staten Island, NY | Competitive Local Exchange Carrier | 1,187 | 43 |
| 8392 | Teleport Communications America LLC - GA | Staten Island, NY | Competitive Local Exchange Carrier | 1,144 | 208 |
| 770E | Teleport Communications America LLC - MI | Bedminster, NJ | Competitive Local Exchange Carrier | 1,005 | 21 |
| 7532 | Teleport Communications America LLC - OH | Staten Island, NY | Competitive Local Exchange Carrier | 916 | 47 |
| 7135 | TC Systems Inc | Staten Island, NY | Competitive Local Exchange Carrier | 908 | 8 |
| 7217 | Teleport Communications America LLC - AZ | Staten Island, NY | Competitive Local Exchange Carrier | 887 | 280 |
| 7146 | Teleport Communications America LLC - WA | Staten Island, NY | Competitive Local Exchange Carrier | 869 | 23 |
| 114F | Teleport Communications America LLC - TN | Bedminster, NJ | Competitive Local Exchange Carrier | 766 | 210 |
| 7529 | Teleport Communications America LLC - DC | Staten Island, NY | Competitive Local Exchange Carrier | 711 | 14 |
| 7142 | Teleport Communications America LLC - NJ | Staten Island, NY | Competitive Local Exchange Carrier | 709 | 2 |
| 8389 | Teleport Communications America LLC - NC | Staten Island, NY | Competitive Local Exchange Carrier | 698 | 15 |
| 7216 | Teleport Communications America - WI - LLC | Staten Island, NY | Competitive Local Exchange Carrier | 647 | 5 |
| 7309 | Teleport Communications America LLC - PA | Staten Island, NY | Competitive Local Exchange Carrier | 645 | 7 |
| 7378 | Teleport Communications America LLC - CO | Staten Island, NY | Competitive Local Exchange Carrier | 626 | 5 |
| 7218 | Teleport Communications America LLC - MO | Staten Island, NY | Competitive Local Exchange Carrier | 560 | 34 |
| 7314 | Teleport Communications America LLC - IN | Staten Island, NY | Competitive Local Exchange Carrier | 540 | 17 |
| 4644 | Teleport Communications America LLC - VA | Staten Island, NY | Competitive Local Exchange Carrier | 525 | 129 |
| 7315 | Teleport Communications America LLC - PA | Staten Island, NY | Competitive Local Exchange Carrier | 498 | 14 |
| 8406 | Teleport Communications America LLC - KY | Staten Island, NY | Competitive Local Exchange Carrier | 485 | 1 |
| 7143 | Teleport Communications America LLC - CT | Staten Island, NY | Competitive Local Exchange Carrier | 436 | 5 |
| 9742 | Nevada Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 417 | · |
| 7325 | Teleport Communications America LLC - MD | Staten Island, NY | Competitive Local Exchange Carrier | 384 | 13 |
| 7530 | Teleport Communications America LLC - UT | Staten Island, NY | Competitive Local Exchange Carrier | 364 | 59 |
| 7147 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 340 | 18 |
| 8271 | Teleport Communications America LLC - AL | Staten Island, NY | Competitive Local Exchange Carrier | 333 | 38 |
| 7726 | Southwestern Bell Telephone Company - TX | Dallas, TX | Competitive Local Exchange Carrier | 324 | · |
| 8405 | Teleport Communications America LLC - MN | Staten Island, NY | Competitive Local Exchange Carrier | 316 | 1 |
| 7144 | Teleport Communications America LLC - NE | Staten Island, NY | Competitive Local Exchange Carrier | 293 | 174 |
| 802C | Teleport Communications America LLC - AR | Bedminster, NJ | Competitive Local Exchange Carrier | 290 | 2 |
| 7480 | Pacific Bell (Competitive) | San Francisco, CA | Competitive Local Exchange Carrier | 286 | · |
| 653C | Teleport Communications America - LA - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 283 | 6 |
| 530C | Teleport Communications America - OK - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 280 | 4 |
| 635C | Teleport Communications America - SC - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 275 | 15 |
| 7531 | Teleport Communications America LLC - OR | Staten Island, NY | Competitive Local Exchange Carrier | 248 | · |
| 8995 | Teleport Communications America LLC - KS | Staten Island, NY | Competitive Local Exchange Carrier | 216 | 5 |
| 6123 | Teleport Communications America LLC - MO | Staten Island, NY | Competitive Local Exchange Carrier | 200 | 7 |
| 458C | Teleport Communications America - MS - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 194 | 13 |
| 003J | Teleport Communications America LLC - HI | Bedminster, NJ | Competitive Local Exchange Carrier | 137 | 1 |
| 587C | Teleport Communications America LLC - NV | Bedminster, NJ | Competitive Local Exchange Carrier | 135 | 10 |
| 8344 | Teleport Communications America LLC - IA | Staten Island, NY | Competitive Local Exchange Carrier | 116 | 11 |
| 450C | Teleport Communications America - NM - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 107 | 57 |
| 7351 | Teleport Communications America - RI - LLC | Staten Island, NY | Competitive Local Exchange Carrier | 105 | 3 |
| 882G | Teleport Communications America LLC - ME | Bedminster, NJ | Competitive Local Exchange Carrier | 104 | 8 |
| 077G | Teleport Communications America LLC - WV | Bedminster, NJ | Competitive Local Exchange Carrier | 93 | · |
| 8299 | Teleport Communications America LLC - NH | Staten Island, NY | Competitive Local Exchange Carrier | 92 | 1 |
| 7310 | Teleport Communications America LLC - NJ | Staten Island, NY | Competitive Local Exchange Carrier | 90 | · |
| 808G | Teleport Communications America LLC - ID | Bedminster, NJ | Competitive Local Exchange Carrier | 71 | 6 |
| 881G | Teleport Communications America LLC - VT | Bedminster, NJ | Competitive Local Exchange Carrier | 45 | · |
| 771G | Teleport Communications America - MT - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 36 | · |
| 879G | Teleport Communications America - WY - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 31 | 3 |
| 772G | Teleport Communications America - ND - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 27 | 3 |
| 693G | Teleport Communications America - SD - LLC | Bedminster, NJ | Competitive Local Exchange Carrier | 22 | 3 |
| 3027 | Alascom Inc dba AT&T Alaska | Anchorage, AK | Incumbent Local Exchange Carrier | 20 | · |
| 724J | Teleport Communications America LLC | San Ramon, CA | Competitive Local Exchange Carrier | 15 | 3 |
| 7533 | Bellsouth Telecommunications LLC - FL | Atlanta, GA | Competitive Local Exchange Carrier | 12 | · |
| 8870 | Southwestern Bell Telephone Company - AR | San Antonio, TX | Competitive Local Exchange Carrier | 11 | · |
| 2741 | Bellsouth Telecommunications Inc | Atlanta, GA | Competitive Local Exchange Carrier | 8 | · |
| 7692 | AT&T Corporation - NV | Bedminster, NJ | Competitive Local Exchange Carrier | 4 | · |
| 9300 | Ameritech | Detroit, MI | Regional Bell Operating Company | 1 | · |