OCN 9740 · Regional Bell Operating Company
Pacific Bell Telephone Company
d/b/a AT&T California
Part of the AT&T group — 74 OCNs across 54 states · 265,508 blocks combined.
Holding: AT&T Inc
Total blocks
18,541
Recent (18 mo)
0
Medium
0
Old
604
Area codes
30
States
1
Address
208 S Akard St
Dallas, TX 75202-4295
208 S Akard St
Dallas, TX 75202-4295
Website
AT&T California
AT&T California
First assigned block
2001-01-17
2001-01-17
Last assigned block
2019-12-02
2019-12-02
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HQ — Dallas, TX
Block portfolio at a glance
By age
- Recent (0) — last 18 mo
- Medium (0)
- Old (604)
- Undated (17,937)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- California CA · 18,541
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from Pacific 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 |
|---|---|---|---|
| 415 | 1,560 | — | 2009-09-23 |
| 408 | 1,360 | — | 2012-12-31 |
| 650 | 1,205 | — | 2010-12-23 |
| 510 | 1,153 | — | 2014-02-03 |
| 916 | 962 | — | 2013-09-23 |
| 714 | 912 | — | 2012-12-18 |
| 707 | 910 | — | 2008-08-18 |
| 530 | 838 | — | 2008-06-19 |
| 559 | 820 | — | 2013-10-31 |
| 310 | 791 | — | 2009-11-04 |
| 818 | 784 | — | 2012-02-14 |
| 925 | 757 | — | 2006-08-15 |
| 209 | 735 | — | 2019-12-02 |
| 323 | 687 | — | 2011-02-02 |
| 661 | 599 | — | 2019-06-28 |
| 619 | 575 | — | 2015-12-23 |
| 858 | 561 | — | 2018-10-04 |
| 831 | 549 | — | 2009-06-12 |
| 949 | 533 | — | 2009-03-13 |
| 213 | 506 | — | 2017-08-30 |
| 805 | 447 | — | 2010-05-05 |
| 760 | 380 | — | 2010-06-11 |
| 626 | 325 | — | 2001-05-18 |
| 951 | 278 | — | 2006-08-10 |
| 909 | 191 | — | 2012-10-23 |
| 562 | 48 | — | — |
| 424 | 36 | — | 2013-11-26 |
| 628 | 17 | — | 2016-02-18 |
| 657 | 16 | — | 2009-05-19 |
| 442 | 6 | — | 2011-12-30 |
States
| State | Blocks | Recent |
|---|---|---|
| CA | 18,541 | — |
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 |
| 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 |