Frontier
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Frontier (RespOrg code FL) controls 32,534 US toll free numbers as of October 2026. That is down 35,822 (52%) since March 2018. Resporgs.com files it under Regional Phone Company. It is part of the Frontier group. Based in Gloversville, NY.
Transfer network
How toll free numbers move between Frontier (FL) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Frontier is highlighted. Open the full interactive map →
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- Website: https://frontier.com/ Domain since 1992 (34y)
- Phone: (800) 921-8101 via web search: frontier.com
At a glance
#25 of 207 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 31,461, 96.7%
- DISCONN 1,043, 3.2%
- TRANSIT 7, 0.0%
- RESERVED 7, 0.0%
- UNAVAIL 2, 0.0%
Inventory age buckets
- < 1 month 11, 0.0%
- 1–3 months 373, 1.0%
- 3–12 months 2,114, 5.7%
- 1–2 years 4,677, 12.5%
- 2–5 years 3,852, 10.3%
- 5+ years 20,434, 54.7%
Ages are measured from each number's last change in the Somos registry, that's the most recent activation, transfer, or status move. Not necessarily the date this RespOrg originally acquired it.
Request a manual history review of a specific toll free number →
Trajectory
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 68,356 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 68,426 | 1,065 | 2 | 995 | 228 | 102 |
| 2018-09 | 67,878 | 485 | 1 | 1,033 | 143 | 77 |
| 2018-10 | 67,614 | 127 | 1 | 391 | 27 | 16 |
| 2018-11 | 67,397 | 143 | 3 | 360 | 48 | 7 |
| 2018-12 | 67,129 | 93 | 0 | 361 | 33 | 1 |
| 2019-01 | 67,044 | 195 | 1 | 280 | 71 | 2 |
| 2019-02 | 66,784 | 97 | 0 | 357 | 28 | 3 |
| 2019-03 | 66,526 | 134 | 2 | 392 | 89 | 3 |
| 2019-04 | 66,140 | 90 | 0 | 476 | 24 | 0 |
| 2019-05 | 65,924 | 151 | 0 | 367 | 75 | 8 |
| 2019-06 | 65,783 | 209 | 0 | 350 | 140 | 2 |
| 2019-08 | 59,941 | 383 | 1 | 6,225 | 139 | 5,610 |
| 2019-09 | 65,423 | 5,806 | 1 | 324 | 5,705 | 13 |
| 2019-10 | 65,803 | 642 | 1 | 262 | 49 | 14 |
| 2019-11 | 69,304 | 3,904 | 4 | 403 | 23 | 13 |
| 2019-12 | 68,655 | 71 | 0 | 720 | 20 | 20 |
| 2020-01 | 68,443 | 50 | 0 | 262 | 22 | 2 |
| 2020-02 | 68,195 | 50 | 1 | 298 | 17 | 2 |
| 2020-03 | 68,028 | 105 | 0 | 272 | 26 | 3 |
| 2020-04 | 67,854 | 65 | 0 | 239 | 27 | 2 |
| 2020-05 | 67,659 | 59 | 0 | 254 | 29 | 4 |
| 2020-06 | 64,842 | 63 | 0 | 2,880 | 33 | 1 |
| 2020-07 | 64,432 | 38 | 0 | 448 | 22 | 0 |
| 2020-08 | 63,969 | 113 | 0 | 576 | 86 | 3 |
| 2020-09 | 63,413 | 49 | 1 | 605 | 17 | 14 |
| 2020-10 | 62,206 | 93 | 0 | 1,300 | 76 | 1 |
| 2020-11 | 61,415 | 70 | 0 | 861 | 14 | 5 |
| 2020-12 | 61,901 | 972 | 0 | 486 | 18 | 0 |
| 2021-01 | 61,559 | 44 | 1 | 386 | 19 | 3 |
| 2021-02 | 61,384 | 128 | 1 | 303 | 7 | 0 |
| 2021-03 | 60,902 | 91 | 0 | 573 | 67 | 0 |
| 2021-04 | 60,598 | 51 | 0 | 355 | 17 | 0 |
| 2021-05 | 60,388 | 70 | 0 | 280 | 24 | 1 |
| 2022-05 | 55,931 | 901 | 3 | 5,358 | 152 | 877 |
| 2022-06 | 55,153 | 35 | 0 | 813 | 17 | 2 |
| 2022-07 | 54,359 | 31 | 0 | 825 | 16 | 1 |
| 2022-08 | 53,168 | 46 | 0 | 1,237 | 8 | 5 |
| 2022-09 | 52,085 | 42 | 2 | 1,125 | 8 | 6 |
| 2022-10 | 51,466 | 18 | 0 | 637 | 5 | 1 |
| 2022-11 | 51,108 | 73 | 0 | 431 | 18 | 0 |
| 2022-12 | 50,710 | 28 | 0 | 426 | 10 | 1 |
| 2023-01 | 49,826 | 24 | 0 | 908 | 5 | 1 |
| 2023-02 | 49,418 | 20 | 1 | 428 | 9 | 0 |
| 2023-03 | 48,828 | 26 | 0 | 616 | 4 | 6 |
| 2023-04 | 47,593 | 33 | 2 | 1,268 | 16 | 4 |
| 2023-05 | 47,421 | 20 | 0 | 192 | 7 | 7 |
| 2023-06 | 47,307 | 24 | 0 | 138 | 12 | 0 |
| 2023-07 | 54,359 | 7,359 | 60 | 307 | 1,136 | 55 |
| 2023-08 | 46,997 | 324 | 3 | 7,686 | 62 | 1,171 |
| 2023-09 | 46,698 | 14 | 1 | 313 | 6 | 0 |
| 2023-10 | 46,576 | 19 | 0 | 141 | 7 | 1 |
| 2023-11 | 46,500 | 109 | 0 | 185 | 11 | 2 |
| 2023-12 | 40,139 | 658 | 3 | 7,019 | 51 | 1,072 |
| 2024-02 | 46,071 | 6,542 | 149 | 610 | 1,046 | 35 |
| 2024-03 | 45,858 | 23 | 0 | 236 | 11 | 12 |
| 2024-04 | 45,747 | 34 | 0 | 145 | 17 | 0 |
| 2024-05 | 45,119 | 15 | 1 | 643 | 6 | 0 |
| 2024-06 | 41,739 | 11 | 0 | 3,391 | 2 | 0 |
| 2024-07 | 41,001 | 44 | 0 | 782 | 4 | 0 |
| 2024-08 | 40,781 | 79 | 0 | 299 | 30 | 0 |
| 2024-09 | 40,649 | 39 | 0 | 171 | 6 | 0 |
| 2024-10 | 40,585 | 138 | 0 | 202 | 9 | 0 |
| 2024-11 | 40,150 | 9 | 0 | 444 | 3 | 0 |
| 2024-12 | 40,086 | 77 | 2 | 141 | 6 | 0 |
| 2025-01 | 39,695 | 222 | 1 | 613 | 2 | 0 |
| 2025-02 | 39,559 | 22 | 1 | 158 | 10 | 0 |
| 2025-03 | 39,559 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 39,442 | 11 | 0 | 128 | 4 | 0 |
| 2025-05 | 39,351 | 59 | 0 | 150 | 56 | 0 |
| 2025-06 | 39,246 | 48 | 0 | 153 | 28 | 0 |
| 2025-07 | 38,697 | 13 | 0 | 562 | 1 | 0 |
| 2025-08 | 38,489 | 26 | 0 | 234 | 12 | 1 |
| 2025-09 | 37,944 | 11 | 0 | 556 | 3 | 0 |
| 2025-10 | 37,398 | 48 | 0 | 594 | 30 | 0 |
| 2025-11 | 36,675 | 43 | 0 | 766 | 18 | 0 |
| 2025-12 | 35,959 | 14 | 0 | 730 | 6 | 0 |
| 2026-01 | 35,316 | 7 | 1 | 650 | 2 | 0 |
| 2026-02 | 35,044 | 17 | 0 | 289 | 9 | 0 |
| 2026-03 | 34,798 | 35 | 0 | 281 | 29 | 0 |
| 2026-04 | 34,451 | 44 | 0 | 391 | 33 | 2 |
| 2026-05 | 34,113 | 16 | 0 | 354 | 6 | 0 |
| 2026-06 | 33,798 | 13 | 0 | 328 | 5 | 0 |
| 2026-07 | 33,437 | 3 | 0 | 364 | 1 | 0 |
| 2026-08 | 33,013 | 12 | 1 | 436 | 6 | 0 |
| 2026-09 | 32,795 | 18 | 1 | 236 | 5 | 0 |
| 2026-10 | 32,534 | 21 | 0 | 282 | 14 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 67,884.0 |
| Harvested from disconnect pool | 759.0 |
| First assigned from spare pool | 31,029.0 |
| Reactivated own disconnects | 2,781.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 127,760.0 |
| Standard disconnect aging process (3+ months in DISC) | 24,198 |
| Abbreviated disconnect period (1–2 months in DISC) | 8,705 |
| Released directly to spare pool | 36,776.0 |
Of the 32,903 disconnect episodes this RespOrg has sent through aging, 26% were abbreviated (1–2 snapshots in DISC status). This RespOrg lets most numbers age the full 3–4 months before release, normal pattern.
Top direct-transfer sources (INto FL)
| SN | 5,013.0 | Southern New England Telephone (Frontier) |
| BP | 1,862.0 | Five 9, Inc. |
| JY | 1,495.0 | Bandwidth |
| ZX | 1,235.0 | Haven Partners (CHP) |
| SO | 1,226.0 | Signal One |
| FO | 1,036.0 | Flotrax (Primetel) |
| IU | 1,029.0 | Interactive RespOrg Management |
| RY | 590.0 | Flotrax (Primetel) |
| KS | 588.0 | Lumen Technologies (Lumen) |
| AL | 556.0 | Lumen Technologies (Lumen) |
Top direct-transfer destinations (OUT of FL)
| KS | 4,222.0 | Lumen Technologies (Lumen) |
| JY | 3,454.0 | Bandwidth |
| BP | 2,974.0 | Five 9, Inc. |
| RB | 1,341.0 | RingCentral |
| ZX | 1,323.0 | Haven Partners (CHP) |
| LQ | 1,214.0 | Inteliquent |
| VZ | 1,150.0 | Verizon Business (Verizon) |
| SO | 1,094.0 | Signal One |
| GA | 1,014.0 | Comet Media |
| IU | 948.0 | Interactive RespOrg Management |
Summary
"Frontier is a leading communications provider offering gigabit speeds to empower and connect millions of consumers and businesses in 25 states."
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