Who's Calling Inc.
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Transfer network
How toll free numbers move between Who's Calling Inc. (WH) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Who's Calling Inc. is highlighted. Open the full interactive map →
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- Website: https://whoscalling.com/ Domain since 1997 (29y)
- Phone: (866) 240-4444 via web search: whoscalling.com
At a glance
Dormant RespOrg
This phone company is dead or nearly dead, almost zero numbers and little or no activity. Sometimes called a "zombie" RespOrg because they just won't die.
Last seen with active numbers: 2025-12. Nothing in any monthly snapshot since.
The trajectory chart below shows the full history. The code may have been transferred, retired, or reassigned to a new operator that hasn't begun activating numbers yet.
Trajectory
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 229,841 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 222,658 | 289 | 1 | 7,472 | 168 | 6,478 |
| 2018-09 | 221,354 | 53 | 0 | 1,357 | 12 | 659 |
| 2018-10 | 216,938 | 4 | 0 | 4,420 | 0 | 4,144 |
| 2018-11 | 217,079 | 524 | 0 | 383 | 511 | 203 |
| 2018-12 | 216,116 | 3 | 0 | 966 | 0 | 777 |
| 2019-01 | 135,877 | 110 | 0 | 80,349 | 103 | 64,945 |
| 2019-02 | 135,729 | 14 | 0 | 162 | 14 | 128 |
| 2019-03 | 135,419 | 131 | 0 | 441 | 130 | 216 |
| 2019-04 | 130,408 | 40 | 0 | 5,051 | 40 | 4,017 |
| 2019-05 | 130,379 | 82 | 0 | 111 | 66 | 83 |
| 2019-06 | 130,166 | 2 | 0 | 215 | 2 | 152 |
| 2019-08 | 122,616 | 12 | 0 | 7,562 | 1 | 7,160 |
| 2019-09 | 126,493 | 4,015 | 0 | 138 | 4,015 | 98 |
| 2019-10 | 126,453 | 302 | 0 | 342 | 294 | 261 |
| 2019-11 | 126,705 | 339 | 0 | 87 | 335 | 61 |
| 2019-12 | 125,735 | 28 | 0 | 998 | 0 | 890 |
| 2020-01 | 100,965 | 0 | 0 | 24,770 | 0 | 14,856 |
| 2020-02 | 100,963 | 13 | 0 | 15 | 13 | 0 |
| 2020-03 | 100,455 | 14 | 0 | 522 | 14 | 0 |
| 2020-04 | 99,765 | 1 | 0 | 691 | 0 | 23 |
| 2020-05 | 98,999 | 1 | 0 | 767 | 0 | 422 |
| 2020-06 | 98,679 | 0 | 0 | 320 | 0 | 178 |
| 2020-07 | 98,698 | 20 | 0 | 1 | 20 | 0 |
| 2020-08 | 98,016 | 20 | 0 | 702 | 19 | 554 |
| 2020-09 | 98,005 | 9 | 0 | 20 | 8 | 13 |
| 2020-10 | 97,273 | 2 | 0 | 734 | 2 | 526 |
| 2020-11 | 96,995 | 22 | 0 | 300 | 22 | 216 |
| 2020-12 | 71,459 | 2 | 0 | 25,538 | 1 | 20,774 |
| 2021-01 | 70,672 | 63 | 0 | 850 | 3 | 763 |
| 2021-02 | 70,135 | 0 | 0 | 537 | 0 | 448 |
| 2021-03 | 69,879 | 4 | 0 | 260 | 0 | 180 |
| 2021-04 | 69,847 | 19 | 0 | 51 | 1 | 0 |
| 2021-05 | 69,476 | 13 | 0 | 384 | 3 | 305 |
| 2022-05 | 54,689 | 10 | 0 | 14,797 | 2 | 5,835 |
| 2022-06 | 54,684 | 89 | 0 | 94 | 0 | 0 |
| 2022-07 | 54,577 | 0 | 0 | 107 | 0 | 57 |
| 2022-08 | 46,569 | 0 | 0 | 8,008 | 0 | 6,678 |
| 2022-09 | 46,114 | 16 | 0 | 471 | 0 | 340 |
| 2022-10 | 44,293 | 394 | 0 | 2,215 | 332 | 90 |
| 2022-11 | 44,083 | 0 | 0 | 210 | 0 | 156 |
| 2022-12 | 42,982 | 3 | 0 | 1,104 | 3 | 964 |
| 2023-01 | 43,816 | 885 | 0 | 51 | 802 | 37 |
| 2023-02 | 43,691 | 0 | 0 | 125 | 0 | 75 |
| 2023-03 | 42,289 | 200 | 0 | 1,602 | 200 | 1,351 |
| 2023-04 | 42,269 | 249 | 0 | 269 | 218 | 209 |
| 2023-05 | 42,223 | 0 | 0 | 46 | 0 | 16 |
| 2023-06 | 42,170 | 0 | 0 | 53 | 0 | 18 |
| 2023-07 | 54,577 | 13,942 | 15 | 1,535 | 9,478 | 884 |
| 2023-08 | 42,083 | 1,608 | 59 | 14,102 | 886 | 9,423 |
| 2023-09 | 42,050 | 4 | 0 | 37 | 0 | 22 |
| 2023-10 | 42,052 | 2 | 0 | 0 | 0 | 0 |
| 2023-11 | 41,449 | 0 | 0 | 603 | 0 | 347 |
| 2023-12 | 31,869 | 29 | 0 | 9,609 | 1 | 198 |
| 2024-02 | 41,329 | 9,487 | 807 | 27 | 198 | 0 |
| 2024-03 | 41,300 | 0 | 0 | 29 | 0 | 0 |
| 2024-04 | 39,779 | 0 | 0 | 1,521 | 0 | 0 |
| 2024-05 | 39,780 | 1 | 0 | 0 | 0 | 0 |
| 2024-06 | 38,920 | 19 | 0 | 879 | 0 | 0 |
| 2024-07 | 38,475 | 0 | 0 | 445 | 0 | 0 |
| 2024-08 | 36,606 | 2 | 0 | 1,871 | 0 | 0 |
| 2024-09 | 35,418 | 1 | 0 | 1,189 | 0 | 0 |
| 2024-10 | 35,415 | 0 | 0 | 3 | 0 | 0 |
| 2024-11 | 35,347 | 0 | 0 | 68 | 0 | 0 |
| 2024-12 | 32,781 | 5 | 0 | 2,571 | 0 | 4 |
| 2025-01 | 28,368 | 0 | 0 | 4,413 | 0 | 0 |
| 2025-02 | 28,328 | 0 | 0 | 40 | 0 | 0 |
| 2025-03 | 28,328 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 28,255 | 1 | 0 | 74 | 0 | 0 |
| 2025-05 | 27,015 | 0 | 0 | 1,240 | 0 | 0 |
| 2025-06 | 24,795 | 0 | 0 | 2,220 | 0 | 0 |
| 2025-07 | 14,165 | 0 | 0 | 10,630 | 0 | 0 |
| 2025-08 | 9,678 | 0 | 0 | 4,487 | 0 | 0 |
| 2025-09 | 9,673 | 0 | 0 | 5 | 0 | 0 |
| 2025-10 | 363 | 0 | 0 | 9,310 | 0 | 0 |
| 2025-11 | 333 | 0 | 0 | 30 | 0 | 0 |
| 2025-12 | 23 | 0 | 0 | 310 | 0 | 0 |
| 2026-01 | 0 | 0 | 0 | 23 | 0 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 42,897.0 |
| Harvested from disconnect pool | 2,646.0 |
| First assigned from spare pool | 53,751.0 |
| Reactivated own disconnects | 0.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 315,891.0 |
| Standard disconnect aging process (3+ months in DISC) | 901 |
| Abbreviated disconnect period (1–2 months in DISC) | 11,254 |
| Released directly to spare pool | 468,702.0 |
Of the 12,155 disconnect episodes this RespOrg has sent through aging, 93% were abbreviated (1–2 snapshots in DISC status). That's a strong early-disconnector signal, this RespOrg routinely releases numbers before the full 3–4 month aging window. Worth checking daily for vanity drops.
Top direct-transfer sources (INto WH)
| MY | 2,587.0 | Mayfair Communication (Primetel) |
| IU | 1,630.0 | Interactive RespOrg Management |
| SO | 1,351.0 | Signal One |
| ZX | 1,010.0 | Haven Partners (CHP) |
| MT | 942.0 | Toll Free Management |
| TW | 529.0 | Twilio |
| YL | 453.0 | Yorkshire Telecom (Primetel) |
| CB | 439.0 | Crossbow Telecom (Primetel) |
| JW | 399.0 | WireStar (Primetel) |
| JY | 359.0 | Bandwidth |
Top direct-transfer destinations (OUT of WH)
| MY | 21,811.0 | Mayfair Communication (Primetel) |
| RS | 16,027.0 | AccessLine |
| ZX | 7,090.0 | Haven Partners (CHP) |
| SO | 5,621.0 | Signal One |
| IU | 5,442.0 | Interactive RespOrg Management |
| RY | 5,150.0 | Flotrax (Primetel) |
| YL | 4,080.0 | Yorkshire Telecom (Primetel) |
| HL | 3,935.0 | Unilink Telcom (Primetel) |
| JW | 3,794.0 | WireStar (Primetel) |
| CB | 2,931.0 | Crossbow Telecom (Primetel) |
Summary
They use vanity numbers in their business more than really marketing them. They alat least provide a lot of call tracking and analytics.
Contact-form message
with Who's Calling