NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 215
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-06-08 | 215-890-0XXX | 0000–0999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-1XXX | 1000–1999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-2XXX | 2000–2999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-3XXX | 3000–3999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-5XXX | 5000–5999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-7XXX | 7000–7999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-8XXX | 8000–8999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2018-06-08 | 215-890-9XXX | 9000–9999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2013-09-20 | 215-422-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2013-09-20 | 215-774-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN32 | PA |
| 2009-09-18 | 215-799-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | SOUDERTON | PA |
| 2009-09-03 | 215-766-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PLUMSTEDVL | PA |
| 2008-10-02 | 215-544-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN37 | PA |
| 2008-09-19 | 215-394-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN39 | PA |
| 2007-10-24 | 215-664-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN33 | PA |
| 2007-10-24 | 215-688-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN41 | PA |
| 2007-10-16 | 215-391-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.