OCN 548E · Competitive Local Exchange Carrier
Onvoy LLC - SC
d/b/a Neutral Tandem-South Carolina LLC
Part of the Onvoy group — 41 OCNs across 41 states · 159,817 blocks combined.
Total blocks
2,418
Recent (18 mo)
126
Medium
421
Old
1,863
Area codes
6
States
1
Address
1 S Wacker Dr, Suite 200
Chicago, IL 60606-4614
1 S Wacker Dr, Suite 200
Chicago, IL 60606-4614
Website
Onvoy
Onvoy
First assigned block
2003-03-20
2003-03-20
Last assigned block
2026-03-27
2026-03-27
Want a number from Onvoy LLC - SC?
Tell us which one — we'll send the request to them and follow up with you.
Request a number →
Carrier website
sinch.com — opens in a new tab
HQ — Chicago, IL
Block portfolio at a glance
By age
- Recent (126) — last 18 mo
- Medium (421)
- Old (1,863)
- Undated (8)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- South Carolina SC · 2,418 · 126
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from Onvoy LLC - SC'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 |
|---|---|---|---|---|---|
| (854) 287-4637 ★ | BUSINESS | Business | SC | 2025-01-09 | 162,448 |
| (821) 222-3369 ★ | ACADEMY | Education / College | SC | 2025-07-14 | 127,272 |
| (839) 327-4466 ★ | FASHION | Fashion / Cosmetics / Interior Design | SC | 2025-12-12 | 86,584 |
| (821) 222-6366 ★ | ABANDONED | Miscellaneous | SC | 2025-07-14 | 75,221 |
| (839) 238-3724 ★ | BEVERAGES | Beverages / Water / Ice | SC | 2025-04-16 | 38,510 |
| (854) 284-5346 ★ | BUILDING | Building / Construction / Contractor | SC | 2024-12-16 | 36,950 |
| (821) 777-4647 ★ | SPRINGS | Geography / Local / Directions | SC | 2025-01-14 | 36,843 |
| (854) 284-5384 ★ | ATHLETIC | Sports | SC | 2024-12-16 | 36,715 |
| (854) 262-7825 ★ | COASTAL | Geography | SC | 2025-03-19 | 26,944 |
| (839) 327-6377 ★ | FARMERS | Farming / Agriculture / Veterinary | SC | 2025-12-12 | 25,602 |
| (854) 226-3727 ★ | CAMERAS | Security / Protection / Fencing | SC | 2024-12-16 | 24,182 |
| (821) 333-3673 ★ | DEFENSE | Martial Arts / Combat | SC | 2025-07-14 | 23,466 |
| (854) 285-8873 ★ | CULTURE | Art / Crafts / Greeting Cards | SC | 2025-02-13 | 21,207 |
| (854) 284-5337 ★ | BUILDER | Building / Construction / Contractor | SC | 2024-12-16 | 20,697 |
| (854) 287-8663 ★ | CUSTOMER | Retail Stores | SC | 2025-01-09 | 19,331 |
| (839) 327-8376 ★ | EASTERN | Geography / Local / Directions | SC | 2025-12-12 | 18,831 |
| (854) 248-2646 ★ | BITCOIN | Financial / Banking | SC | 2025-09-03 | 17,497 |
| (854) 284-7463 ★ | CUISINE | Restaurants | SC | 2024-12-16 | 17,359 |
| (839) 252-6538 ★ | BLANKETS | Sleep / Mattresses / Comfort | SC | 2025-12-12 | 17,136 |
| (854) 228-4848 ★ | ACTIVITIES | Recreation / Adventure / Bowling | SC | 2025-03-19 | 16,899 |
| (854) 296-8442 ★ | CYNTHIA | Female / Feminine Names | SC | 2025-09-18 | 16,484 |
| (839) 238-3759 ★ | BEVERLY | Geography / Local / Directions | SC | 2025-04-16 | 15,754 |
| (821) 333-3725 ★ | FEDERAL | Military / Government / Patriotic | SC | 2025-07-14 | 14,937 |
| (854) 226-7464 ★ | CAMPING | Outdoor / Camping / Landscaping | SC | 2025-02-07 | 14,911 |
| (821) 666-8262 ★ | MONTANA | Geography / Local / Directions | SC | 2025-08-21 | 14,215 |
| (821) 666-7837 ★ | MONSTER | Scary / Halloween / Dangerous | SC | 2025-08-21 | 13,891 |
| (854) 226-3537 ★ | CANDLES | Shopping / Gifts / Novelties | SC | 2024-12-16 | 13,535 |
| (854) 228-4464 ★ | BATHING | Bathroom / Toiletries | SC | 2025-03-19 | 13,150 |
| (821) 444-4929 ★ | HIGHWAY | Geography / Local / Directions | SC | 2025-07-14 | 12,962 |
| (854) 287-4377 ★ | BURGERS | Restaurants | SC | 2025-01-09 | 12,487 |
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 Onvoy LLC - SC since 2024-11-12.
| Number block | State | Rate center | Assigned |
|---|---|---|---|
| (821) 529-3XXX | SC | Mccormick | 2026-03-27 |
| (821) 821-4XXX | SC | Williamstn | 2025-12-31 |
| (821) 821-7XXX | SC | Williamstn | 2025-12-31 |
| (839) 839-7XXX | SC | No Augusta | 2025-12-31 |
| (864) 864-2XXX | SC | Fountaninn | 2025-12-31 |
| (864) 864-4XXX | SC | Fountaninn | 2025-12-31 |
| (864) 864-7XXX | SC | Fountaninn | 2025-12-31 |
| (821) 800-XXXX | SC | Pacolet | 2025-12-24 |
| (821) 800-0XXX | SC | Pacolet | 2025-12-24 |
| (821) 800-8XXX | SC | Pacolet | 2025-12-24 |
| (821) 800-9XXX | SC | Pacolet | 2025-12-24 |
| (821) 529-XXXX | SC | Mccormick | 2025-12-22 |
| (821) 529-0XXX | SC | Mccormick | 2025-12-22 |
| (821) 529-9XXX | SC | Mccormick | 2025-12-22 |
| (803) 883-7XXX | SC | Sumter | 2025-12-18 |
| (843) 917-3XXX | SC | Hartsville | 2025-12-18 |
| (854) 296-4XXX | SC | Summervl | 2025-12-18 |
| (803) 401-8XXX | SC | Columbia | 2025-12-12 |
| (803) 964-4XXX | SC | Hampton | 2025-12-12 |
| (839) 203-5XXX | SC | Batesburg | 2025-12-12 |
| (839) 252-4XXX | SC | Columbia | 2025-12-12 |
| (839) 252-5XXX | SC | Columbia | 2025-12-12 |
| (839) 252-6XXX | SC | Columbia | 2025-12-12 |
| (839) 304-2XXX | SC | Bath | 2025-12-12 |
| (839) 327-XXXX | SC | Camden | 2025-12-12 |
Sister OCNs in the Onvoy group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the Onvoy group page.
| OCN | Company name on file | HQ state | Total | Recent |
|---|---|---|---|---|
| 649C | Onvoy LLC - CA | IL | 21,516 | 889 |
| 903C | Onvoy LLC - TX | IL | 15,066 | 595 |
| 937C | Onvoy LLC - FL | IL | 11,145 | 1,122 |
| 384C | Onvoy LLC - NY | IL | 9,958 | 478 |
| 547E | Onvoy LLC - PA | IL | 8,313 | 505 |
| 067D | Onvoy LLC - GA | IL | 6,330 | 279 |
| 543C | Onvoy LLC V - MI | IL | 5,779 | 19 |
| 638E | Onvoy LLC - NC | IL | 5,384 | 321 |
| 637C | Onvoy LLC - NJ | IL | 5,188 | 490 |
| 097D | Onvoy LLC - IN | IL | 4,545 | 176 |
| 892D | Onvoy LLC - MA | IL | 4,351 | — |
| 138E | Onvoy LLC - VA | IL | 4,341 | 380 |
| 604E | Onvoy LLC - AL | IL | 4,230 | 90 |
| 093F | Onvoy LLC - MO | IL | 4,204 | 208 |
| 184D | Onvoy LLC - MN | IL | 3,892 | 9 |
| 225C | Onvoy LLC - WI | IL | 3,477 | 181 |
| 026D | Onvoy LLC - CO | IL | 3,190 | 93 |
| 483E | Onvoy LLC - WA | IL | 3,106 | 3 |
| 876D | Onvoy LLC - MD | IL | 3,090 | 253 |
| 749E | Onvoy LLC - LA | IL | 2,987 | 127 |
| 630E | Onvoy LLC - AZ | IL | 2,936 | 11 |
| 221F | Onvoy LLC - IA | IL | 2,799 | 25 |
| 750E | Onvoy LLC - OR | IL | 2,458 | 126 |
| 409F | Onvoy LLC - OK | IL | 2,425 | 78 |
| 205F | Onvoy LLC - KS | IL | 2,071 | 74 |
| 639C | Onvoy LLC - CT | IL | 1,783 | 64 |
| 348F | Onvoy LLC - AR | IL | 1,771 | 162 |
| 871E | Onvoy LLC - UT | IL | 1,634 | 57 |
| 549E | Onvoy LLC - NE | IL | 1,524 | 41 |
| 029F | Onvoy LLC - NV | IL | 1,402 | 44 |
| 206F | Onvoy LLC - NM | IL | 1,263 | 46 |
| 449F | Onvoy LLC - WV | IL | 1,168 | 12 |
| 850D | Onvoy LLC - DC | IL | 688 | 37 |
| 451F | Onvoy LLC - VT | IL | 652 | 17 |
| 450F | Onvoy LLC - WY | IL | 626 | 27 |
| 969E | Onvoy LLC - DE | IL | 608 | 27 |
| 452F | Onvoy LLC - ND | IL | 502 | — |
| 977E | Onvoy LLC - RI | IL | 463 | 21 |
| 210H | Onvoy LLC - HI | IL | 365 | 20 |
| 559F | Neutral Tandem - PR | IL | 169 | 12 |