OCN 7726 · Competitive Local Exchange Carrier
Southwestern Bell Telephone Company - TX
d/b/a Southwestern Bell Telephone Company
Part of the AT&T group — 74 OCNs across 54 states · 265,508 blocks combined.
Holding: AT&T Inc
Total blocks
324
Recent (18 mo)
0
Medium
0
Old
153
Area codes
8
States
1
Address
1460 Round Table Dr
Dallas, TX 75247-3500
1460 Round Table Dr
Dallas, TX 75247-3500
Website
AT&T Texas
AT&T Texas
First assigned block
2002-04-09
2002-04-09
Last assigned block
2017-03-29
2017-03-29
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HQ — Dallas, TX
Block portfolio at a glance
By age
- Recent (0) — last 18 mo
- Medium (0)
- Old (153)
- Undated (171)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Texas TX · 324
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from Southwestern Bell Telephone Company - TX'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 | Score |
|---|---|---|---|---|---|
| (227) 266-7269 ★ | COMPANY | Business | MD | 2024-12-19 | 302,351 |
| (472) 266-7269 ★ | COMPANY | Business | NC | 2025-02-20 | 302,351 |
| (730) 266-7269 ★ | COMPANY | Business | IL | 2025-03-07 | 302,351 |
| (835) 266-7269 ★ | COMPANY | Business | PA | 2025-05-21 | 302,351 |
| (227) 266-7883 ★ | COMPUTER | Computer / Hardware | MD | 2024-12-19 | 272,250 |
| (472) 266-7883 ★ | COMPUTER | Computer / Hardware | NC | 2025-02-20 | 272,250 |
| (730) 266-7883 ★ | COMPUTER | Computer / Hardware | IL | 2025-03-07 | 272,250 |
| (835) 266-7883 ★ | COMPUTER | Computer / Hardware | PA | 2025-05-21 | 272,250 |
| (229) 797-8367 ★ | SYSTEMS | Technical / Electronics / Software | GA | 2026-02-20 | 226,067 |
| (865) 797-8367 ★ | SYSTEMS | Technical / Electronics / Software | TN | 2025-09-22 | 226,067 |
| (385) 633-4225 ★ | MEDICAL | Health Care / Medical / Hospitals | UT | 2025-04-14 | 213,816 |
| (234) 463-6762 ★ | INFORMATION | VAN | OH | 2026-01-26 | 192,525 |
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Sister OCNs in the AT&T group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the AT&T group page.
Sister OCNs under AT&T Inc
| OCN | Company | Total | Recent |
|---|---|---|---|
| 6534 | New Cingular Wireless PCS LLC - IL | 58,704 | 6,972 |
| 6214 | New Cingular Wireless PCS LLC - GA | 40,046 | 5,569 |
| 6010 | New Cingular Wireless PCS LLC | 38,106 | 3,116 |
| 4036 | New Cingular Wireless PCS LLC - DC | 30,944 | 4,493 |
| 9533 | Southwestern Bell Telephone Company | 26,095 | 0 |
| 9740 | Pacific Bell Telephone Company | 18,541 | 0 |
| 9417 | Bellsouth Telecommunications Inc dba Southern Bell Telephone & Telegraph | 15,734 | 0 |
| 9419 | Bellsouth Telecommunications Inc dba South Central Bell Telephone | 13,075 | 0 |
| 9329 | Ameritech Illinois | 6,645 | 0 |
| 516C | AT&T Enterprises LLC | 5,935 | 113 |
| 9323 | Ameritech Michigan | 5,035 | 0 |
| 9321 | Ameritech Ohio | 4,377 | 0 |