MCImetro Access Transmission Services LLC - MD
d/b/a MCI Worldcom Communications Inc
Part of the Verizon group — 143 OCNs across 53 states · 236,111 blocks combined.
Holding: Verizon Communications Inc
8521 Leesburg Pike,
Vienna, VA 22182-2427
verizon.com
2003-08-13
2025-08-07
HQ — Vienna, VA
Block portfolio at a glance
By age
- Recent (4) — last 18 mo
- Medium (4)
- Old (210)
- Undated (173)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Maryland MD · 391 · 4
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Best vanity numbers from MCImetro Access Transmission Services LLC - MD'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) 293-7663 ★ | AWESOME | Superlatives / Positive Adjectives | MD | 2025-08-07 | 13,307 |
| (227) 293-5763 ★ | AXELROD | Names / Nicknames | MD | 2025-08-07 | 439 |
| (227) 293-2484 | BY FAITH | Clothing / Apparel / Fabric | MD | 2025-08-07 | 1,197 |
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Most recent assignments
Last 18 months — these blocks were issued by MCImetro Access Transmission Services LLC - MD since 2024-11-12.
| Number block | State | Rate center | Assigned |
|---|---|---|---|
| (227) 293-XXXX | MD | Cumberland | 2025-08-07 |
| (227) 293-2XXX | MD | Cumberland | 2025-08-07 |
| (227) 293-3XXX | MD | Cumberland | 2025-08-07 |
| (227) 293-4XXX | MD | Cumberland | 2025-08-07 |
Sister OCNs in the Verizon group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the Verizon group page.
Sister OCNs under Verizon Communications Inc
| OCN | Company | Total | Recent |
|---|---|---|---|
| 7229 | MCImetro Access Transmission Services LLC | 19,828 | 88 |
| 9104 | Verizon New York Inc | 9,244 | 0 |
| 9208 | Verizon Pennsylvania Inc | 5,861 | 0 |
| 9102 | Verizon New England Inc | 5,475 | 0 |
| 9206 | Verizon New Jersey Inc | 5,300 | 0 |
| 9212 | Verizon Maryland Inc | 4,281 | 0 |
| 9213 | Verizon Virginia Inc | 4,025 | 0 |
| 7133 | MCImetro Access Transmission Services LLC - NY | 1,864 | 0 |
| 7240 | MCImetro Access Transmission Services LLC - CA | 1,775 | 0 |
| 8909 | Codetel (DR) | 1,143 | 0 |
| 7279 | MCImetro Access Transmission Services LLC - MI | 1,048 | 0 |
| 7448 | MCI Worldcom Communications Inc - FL | 1,041 | 1 |