NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 267
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-07-13 | 267-831-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN1 | PA |
| 2010-01-15 | 267-270-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN3 | PA |
| 2009-09-03 | 267-209-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | LINELXNGTN | PA |
| 2009-09-03 | 267-293-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | CARVERSVL | PA |
| 2009-09-03 | 267-394-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | YARDLEY | PA |
| 2009-09-03 | 267-396-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | WYCOMBE | PA |
| 2009-09-03 | 267-544-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | BUCKINGHAM | PA |
| 2009-09-03 | 267-834-3XXX | 3000–3999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | GREEN LANE | PA |
| 2009-09-03 | 267-867-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | DUBLIN | PA |
| 2009-08-31 | 267-351-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN4 | PA |
| 2009-08-31 | 267-416-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | HARLEYSVL | PA |
| 2009-08-31 | 267-427-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PENNSBURG | PA |
| 2009-08-31 | 267-989-3XXX | 3000–3999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN40 | PA |
| 2009-04-15 | 267-363-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | BEDMINSTER | PA |
| 2008-10-02 | 267-404-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PERKASIE | PA |
| 2008-10-02 | 267-485-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN45 | PA |
| 2008-10-02 | 267-572-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN43 | PA |
| 2008-10-02 | 267-580-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN44 | PA |
| 2008-10-02 | 267-859-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN42 | PA |
| 2008-09-19 | 267-364-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | NEWTOWN | PA |
| 2008-09-19 | 267-607-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN38 | PA |
| 2008-09-19 | 267-622-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHPHSBZN34 | PA |
| 2008-08-08 | 267-217-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | NORTHWALES | PA |
| 2008-08-08 | 267-379-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | QUAKERTOWN | PA |
| 2008-08-08 | 267-645-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | LANSDALE | PA |
| 2008-08-08 | 267-670-7XXX | 7000–7999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | PHLDLPHZN2 | PA |
| 2008-08-08 | 267-740-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | NEW HOPE | PA |
| 2008-08-08 | 267-793-3XXX | 3000–3999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | MORRISVL | PA |
| 2008-08-07 | 267-880-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | DOYLESTOWN | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.