OCN 6278 · Wireless Carrier
United States Cellular - TN
d/b/a United States Cellular
Part of the U.S. Cellular group — 20 OCNs across 20 states · 9,885 blocks combined.
Holding: United States Cellular Operating Company
Total blocks
335
Recent (18 mo)
33
Medium
0
Old
18
Area codes
4
States
1
Address
8410 W Bryn Mawr Ave, Suite 700
Chicago, IL 60631-3408
8410 W Bryn Mawr Ave, Suite 700
Chicago, IL 60631-3408
Website
uscellular.com
uscellular.com
First assigned block
2001-02-22
2001-02-22
Last assigned block
2026-03-05
2026-03-05
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HQ — Chicago, IL
Block portfolio at a glance
By age
- Recent (33) — last 18 mo
- Medium (0)
- Old (18)
- Undated (284)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Tennessee TN · 335 · 33
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from United States Cellular - TN'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 |
|---|---|---|---|---|---|
| (423) 363-7253 ★ | EMERALD | Jewelry / Diamonds | TN | 2026-03-05 | 14,031 |
| (423) 363-7436 ★ | EMERGENCY | VAN | TN | 2026-03-05 | 7,261 |
| (423) 363-7766 ★ | EMERSON | Names / Nicknames | TN | 2026-03-05 | 4,862 |
| (423) 363-7442 ★ | ENERGIA | Energy / Gas Stations / Generators | TN | 2026-03-05 | 3,627 |
| (423) 377-2665 ★ | ESPANOL | International / Global | TN | 2025-01-13 | 2,528 |
| (423) 363-7446 ★ | EMERGING | Results / Growth / Trophies | TN | 2026-03-05 | 1,960 |
| (423) 363-6274 ★ | ENDOCRINE | Health Care / Medical | TN | 2026-03-05 | 1,345 |
| (423) 363-8726 ★ | ENDURANCE | Fitness / Spa | TN | 2026-03-05 | 1,251 |
| (423) 377-2637 ★ | ERRANDS | General | TN | 2025-01-13 | 1,128 |
| (423) 363-7438 ★ | ENERGETIC | General | TN | 2026-03-05 | 538 |
| (423) 885-8873 ★ | VULTURE | Animals / Taxidermy / Veterinarian | TN | 2025-04-30 | 404 |
| (423) 377-2237 ★ | ESPACES | General | TN | 2025-01-13 | 311 |
| (423) 363-6437 ★ | ENEMIES | Negative Terms | TN | 2026-03-05 | 308 |
| (423) 363-6963 ★ | ENDOWMENT | Insurance | TN | 2026-03-05 | 176 |
| (423) 363-7433 ★ | EMERGED | General | TN | 2026-03-05 | 95 |
| (423) 363-7439 ★ | ENERGEX | Energy / Gas Stations / Generators | TN | 2026-03-05 | 78 |
| (423) 363-6933 ★ | ENDOWED | Negative Terms | TN | 2026-03-05 | 58 |
| (423) 363-7246 ★ | ENDPAIN | Health Care / Medical | TN | 2026-03-05 | 42 |
| (423) 363-8746 ★ | ENDURING | Superlatives / Positive Adjectives | TN | 2026-03-05 | 13 |
| (423) 363-6723 | ENFORCE | Technical / Electronics / Software | TN | 2026-03-05 | 20,330 |
| (423) 363-7443 | ENERGIE | Energy / Gas Stations / Generators | TN | 2026-03-05 | 5,685 |
Want one of these or something similar? Request the number from this carrier and we'll route the request.
Most recent assignments
Last 18 months — these blocks were issued by United States Cellular - TN since 2024-11-12.
| Number block | State | Rate center | Assigned |
|---|---|---|---|
| (423) 363-1XXX | TN | Huntsville | 2026-03-05 |
| (423) 363-6XXX | TN | Huntsville | 2026-03-05 |
| (423) 363-7XXX | TN | Huntsville | 2026-03-05 |
| (423) 363-8XXX | TN | Huntsville | 2026-03-05 |
| (423) 363-9XXX | TN | Huntsville | 2026-03-05 |
| (423) 214-0XXX | TN | Englewood | 2025-04-30 |
| (423) 214-6XXX | TN | Englewood | 2025-04-30 |
| (423) 214-7XXX | TN | Englewood | 2025-04-30 |
| (423) 214-8XXX | TN | Englewood | 2025-04-30 |
| (423) 572-5XXX | TN | Englewood | 2025-04-30 |
| (423) 606-2XXX | TN | Englewood | 2025-04-30 |
| (423) 606-3XXX | TN | Englewood | 2025-04-30 |
| (423) 606-4XXX | TN | Englewood | 2025-04-30 |
| (423) 606-5XXX | TN | Englewood | 2025-04-30 |
| (423) 606-7XXX | TN | Englewood | 2025-04-30 |
| (423) 606-8XXX | TN | Englewood | 2025-04-30 |
| (423) 606-9XXX | TN | Englewood | 2025-04-30 |
| (423) 885-0XXX | TN | Englewood | 2025-04-30 |
| (423) 885-1XXX | TN | Englewood | 2025-04-30 |
| (423) 885-3XXX | TN | Englewood | 2025-04-30 |
| (423) 885-4XXX | TN | Englewood | 2025-04-30 |
| (423) 885-5XXX | TN | Englewood | 2025-04-30 |
| (423) 885-6XXX | TN | Englewood | 2025-04-30 |
| (423) 885-7XXX | TN | Englewood | 2025-04-30 |
| (423) 885-8XXX | TN | Englewood | 2025-04-30 |
Sister OCNs in the U.S. Cellular group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the U.S. Cellular group page.
| OCN | Company name on file | HQ state | Total | Recent |
|---|---|---|---|---|
| 6266 | United States Cellular - IA | IL | 1,903 | 385 |
| 6272 | United States Cellular - OK | IL | 1,207 | 478 |
| 6274 | United States Cellular - WI | IL | 1,084 | 277 |
| 6265 | United States Cellular - IL | IL | 792 | 199 |
| 6282 | United States Cellular - NC | IL | 692 | 40 |
| 6291 | United States Cellular - ME | IL | 521 | 5 |
| 6275 | United States Cellular - MO | IL | 487 | 73 |
| 6263 | United States Cellular - NE | IL | 482 | 107 |
| 6283 | United States Cellular - VA | IL | 400 | 100 |
| 6284 | United States Cellular - WV | IL | 327 | 62 |
| 6267 | United States Cellular - KS | IL | 321 | 60 |
| 6290 | United States Cellular - NH | IL | 302 | — |
| 6349 | United States Cellular - OR | IL | 287 | 25 |
| 6270 | United States Cellular - WA | IL | 256 | 1 |
| 6271 | United States Cellular - TX | IL | 192 | 130 |
| 6261 | United States Cellular - CA | IL | 179 | — |
| 6289 | United States Cellular - VT | IL | 71 | 10 |
| 4720 | USCOC of Cumberland Inc dba United States Cellular - MD | IL | 39 | — |
| 6286 | United States Cellular - PA | IL | 8 | — |
Sister OCNs under United States Cellular Operating Company
| OCN | Company | Total | Recent |
|---|---|---|---|
| 6266 | United States Cellular - IA | 1,903 | 385 |
| 6272 | United States Cellular - OK | 1,207 | 478 |
| 6274 | United States Cellular - WI | 1,084 | 277 |
| 6265 | United States Cellular - IL | 792 | 199 |
| 6282 | United States Cellular - NC | 692 | 40 |
| 6291 | United States Cellular - ME | 521 | 5 |
| 6275 | United States Cellular - MO | 487 | 73 |
| 6263 | United States Cellular - NE | 482 | 107 |
| 6283 | United States Cellular - VA | 400 | 100 |
| 6284 | United States Cellular - WV | 327 | 62 |
| 6267 | United States Cellular - KS | 321 | 60 |
| 6290 | United States Cellular - NH | 302 | 0 |