NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 212
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2000-08-14 | 212-999-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-08-14 | 212-999-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-08-14 | 212-999-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-06-05 | 212-999-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-05-30 | 212-321-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-05-10 | 212-813-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 2000-03-22 | 212-813-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 1999-12-24 | 212-386-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 1999-10-24 | 212-584-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 1999-10-03 | 212-417-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-09-27 | 212-375-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-09-27 | 212-375-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-09-27 | 212-909-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-07-02 | 212-651-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| 1999-05-01 | 212-321-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | NWYRCYZN01 | NY |
| 1999-04-30 | 212-433-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-04-30 | 212-433-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-03-22 | 212-313-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 1999-03-22 | 212-313-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 1999-03-22 | 212-313-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1999-03-17 | 212-656-9XXX | 9000–9999 | Assigned | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY |
| 1999-02-09 | 212-716-0XXX | 0000–0999 | Assigned | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY |
| 1999-01-15 | 212-656-0XXX | 0000–0999 | Assigned | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY |
| 1998-12-22 | 212-904-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 1998-12-15 | 212-351-0XXX | 0000–0999 | Assigned | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY |
| 1998-09-04 | 212-851-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.