OCN 9533 · Regional Bell Operating Company
Southwestern Bell Telephone Company
d/b/a AT&T Southwest
Part of the AT&T group — 74 OCNs across 54 states · 265,508 blocks combined.
Holding: AT&T Inc
Total blocks
26,095
Recent (18 mo)
0
Medium
0
Old
1,893
Area codes
44
States
6
Address
208 S Akard St
Dallas, TX 75202-4295
208 S Akard St
Dallas, TX 75202-4295
Website
AT&T Southwest
AT&T Southwest
First assigned block
2000-09-14
2000-09-14
Last assigned block
2021-11-02
2021-11-02
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HQ — Dallas, TX
Block portfolio at a glance
By age
- Recent (0) — last 18 mo
- Medium (0)
- Old (1,893)
- Undated (24,202)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from Southwestern Bell Telephone Company'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 |
Want one of these or something similar? Request the number from this carrier and we'll route the request.
Area codes
| NPA | Blocks | Recent | Last |
|---|---|---|---|
| 713 | 2,034 | — | 2010-12-16 |
| 972 | 1,380 | — | 2017-05-22 |
| 210 | 1,311 | — | 2018-10-22 |
| 817 | 1,222 | — | 2013-02-28 |
| 512 | 1,200 | — | 2014-01-13 |
| 281 | 1,191 | — | 2017-10-18 |
| 214 | 1,129 | — | 2011-09-16 |
| 918 | 1,062 | — | 2018-04-09 |
| 314 | 1,034 | — | 2013-07-01 |
| 405 | 1,022 | — | 2015-11-30 |
| 816 | 1,021 | — | 2018-03-12 |
| 913 | 752 | — | 2016-07-26 |
| 409 | 742 | — | 2018-11-16 |
| 501 | 716 | — | 2014-11-07 |
| 580 | 705 | — | 2016-08-04 |
| 870 | 664 | — | 2021-11-02 |
| 956 | 626 | — | 2016-03-08 |
| 785 | 609 | — | 2012-12-03 |
| 573 | 567 | — | 2021-08-05 |
| 620 | 526 | — | 2012-09-24 |
| 806 | 507 | — | 2017-11-06 |
| 903 | 505 | — | 2013-03-20 |
| 361 | 503 | — | 2016-06-10 |
| 636 | 466 | — | 2013-04-18 |
| 316 | 464 | — | 2013-01-28 |
| 915 | 436 | — | 2012-06-08 |
| 254 | 407 | — | 2013-05-01 |
| 479 | 365 | — | 2017-01-23 |
| 832 | 361 | — | 2015-05-18 |
| 417 | 353 | — | 2018-10-23 |
| 830 | 335 | — | 2007-09-21 |
| 432 | 318 | — | 2016-03-08 |
| 469 | 308 | — | 2020-07-21 |
| 979 | 285 | — | 2015-09-23 |
| 660 | 201 | — | 2015-05-06 |
| 940 | 199 | — | 2011-12-08 |
| 936 | 182 | — | 2016-09-06 |
| 325 | 141 | — | 2008-02-19 |
| 346 | 140 | — | 2017-07-18 |
| 682 | 87 | — | 2016-02-25 |
| 737 | 8 | — | 2018-03-22 |
| 618 | 5 | — | — |
| 539 | 4 | — | 2011-10-06 |
| 430 | 2 | — | 2016-11-28 |
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 |
| 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 |
| 9325 | Ameritech Indiana | 2,941 | 0 |