OnCall RespOrg Svcs
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OnCall RespOrg Svcs (RespOrg code OA) controls 6,187 US toll free numbers as of October 2026. That is down 30,435 (83%) since March 2018. Resporgs.com files it under Resporg Services. Based in Endicott, NY.
Transfer network
How toll free numbers move between OnCall RespOrg Svcs (OA) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; OnCall RespOrg Svcs is highlighted. Open the full interactive map →
Scroll to zoom, drag to pan, drag a node to reposition.
- Website: https://oncallresporgsvcs.com/ Domain since 2005 (21y)
- Phone: (800) 861-0757 via web search: zoominfo.com
- Request form: 800-986-2501
At a glance
#31 of 207 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 6,175, 100.0%
- RESERVED 2, 0.0%
Inventory age buckets
- 1–3 months 4, 0.0%
- 3–12 months 41, 0.4%
- 1–2 years 58, 0.6%
- 2–5 years 2,042, 20.9%
- 5+ years 4,030, 41.2%
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 | 36,622 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 35,238 | 547 | 3 | 1,931 | 250 | 2 |
| 2018-09 | 30,979 | 333 | 1 | 4,592 | 92 | 11 |
| 2018-10 | 30,915 | 51 | 1 | 115 | 34 | 5 |
| 2018-11 | 30,669 | 40 | 0 | 286 | 22 | 5 |
| 2018-12 | 30,673 | 28 | 0 | 24 | 13 | 3 |
| 2019-01 | 30,601 | 12 | 0 | 84 | 4 | 0 |
| 2019-02 | 31,167 | 619 | 0 | 53 | 19 | 1 |
| 2019-03 | 31,026 | 29 | 1 | 170 | 21 | 0 |
| 2019-04 | 30,928 | 27 | 0 | 125 | 17 | 1 |
| 2019-05 | 30,974 | 54 | 0 | 8 | 20 | 4 |
| 2019-06 | 31,001 | 29 | 0 | 2 | 18 | 0 |
| 2019-08 | 29,383 | 271 | 0 | 1,889 | 90 | 1,845 |
| 2019-09 | 31,256 | 1,897 | 0 | 24 | 1,868 | 1 |
| 2019-10 | 30,425 | 47 | 0 | 878 | 42 | 4 |
| 2019-11 | 30,647 | 232 | 0 | 10 | 31 | 3 |
| 2019-12 | 30,669 | 47 | 0 | 25 | 34 | 12 |
| 2020-01 | 31,323 | 664 | 0 | 10 | 22 | 6 |
| 2020-02 | 42,716 | 11,479 | 1 | 86 | 25 | 0 |
| 2020-03 | 42,719 | 39 | 0 | 36 | 36 | 1 |
| 2020-04 | 42,649 | 27 | 2 | 97 | 23 | 9 |
| 2020-05 | 40,572 | 459 | 0 | 2,536 | 23 | 1 |
| 2020-06 | 41,186 | 629 | 0 | 15 | 582 | 1 |
| 2020-07 | 40,076 | 17 | 0 | 1,127 | 11 | 3 |
| 2020-08 | 39,837 | 123 | 0 | 362 | 113 | 3 |
| 2020-09 | 37,211 | 86 | 0 | 2,712 | 64 | 6 |
| 2020-10 | 33,286 | 30 | 0 | 3,955 | 27 | 1 |
| 2020-11 | 33,823 | 748 | 1 | 211 | 513 | 3 |
| 2020-12 | 32,704 | 5 | 0 | 1,124 | 3 | 16 |
| 2021-01 | 31,469 | 8 | 0 | 1,243 | 5 | 8 |
| 2021-02 | 32,128 | 936 | 0 | 277 | 15 | 0 |
| 2021-03 | 32,999 | 1,116 | 0 | 245 | 32 | 3 |
| 2021-04 | 28,754 | 30 | 0 | 4,275 | 24 | 6 |
| 2021-05 | 28,523 | 20 | 0 | 251 | 18 | 3 |
| 2022-05 | 27,285 | 156 | 0 | 1,394 | 61 | 188 |
| 2022-06 | 27,234 | 68 | 0 | 119 | 68 | 0 |
| 2022-07 | 27,239 | 65 | 0 | 60 | 62 | 1 |
| 2022-08 | 27,361 | 182 | 0 | 60 | 40 | 1 |
| 2022-09 | 27,255 | 14 | 0 | 120 | 11 | 0 |
| 2022-10 | 27,242 | 18 | 0 | 31 | 14 | 1 |
| 2022-11 | 26,321 | 2 | 0 | 923 | 2 | 5 |
| 2022-12 | 16,992 | 4 | 0 | 9,333 | 2 | 0 |
| 2023-01 | 8,268 | 6 | 0 | 8,730 | 5 | 0 |
| 2023-02 | 8,246 | 3 | 0 | 25 | 3 | 1 |
| 2023-03 | 8,113 | 7 | 0 | 140 | 3 | 2 |
| 2023-04 | 8,478 | 383 | 0 | 18 | 380 | 0 |
| 2023-05 | 8,462 | 5 | 0 | 21 | 5 | 5 |
| 2023-06 | 7,389 | 2 | 0 | 1,075 | 2 | 1,005 |
| 2023-07 | 27,239 | 20,250 | 3 | 400 | 1,051 | 330 |
| 2023-08 | 6,890 | 802 | 7 | 21,151 | 660 | 1,106 |
| 2023-09 | 7,717 | 827 | 0 | 0 | 6 | 0 |
| 2023-10 | 7,718 | 4 | 0 | 3 | 2 | 3 |
| 2023-11 | 7,719 | 3 | 0 | 2 | 3 | 2 |
| 2023-12 | 6,902 | 217 | 1 | 1,034 | 154 | 0 |
| 2024-02 | 7,984 | 1,295 | 0 | 213 | 1 | 156 |
| 2024-03 | 7,994 | 11 | 0 | 1 | 8 | 1 |
| 2024-04 | 7,999 | 5 | 0 | 0 | 0 | 0 |
| 2024-05 | 8,098 | 100 | 0 | 1 | 94 | 0 |
| 2024-06 | 8,125 | 27 | 20 | 0 | 2 | 0 |
| 2024-07 | 8,334 | 217 | 2 | 8 | 202 | 0 |
| 2024-08 | 8,337 | 8 | 0 | 5 | 4 | 0 |
| 2024-09 | 8,440 | 103 | 0 | 0 | 82 | 0 |
| 2024-10 | 6,904 | 3 | 0 | 1,539 | 3 | 0 |
| 2024-11 | 7,102 | 202 | 0 | 4 | 198 | 0 |
| 2024-12 | 6,901 | 2 | 0 | 203 | 0 | 0 |
| 2025-01 | 6,903 | 9 | 0 | 7 | 8 | 0 |
| 2025-02 | 6,903 | 3 | 0 | 3 | 1 | 0 |
| 2025-03 | 6,903 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 7,071 | 168 | 3 | 0 | 122 | 0 |
| 2025-05 | 6,947 | 32 | 5 | 156 | 25 | 0 |
| 2025-06 | 6,959 | 19 | 4 | 7 | 3 | 0 |
| 2025-07 | 6,959 | 5 | 0 | 5 | 5 | 0 |
| 2025-08 | 6,973 | 30 | 0 | 16 | 25 | 0 |
| 2025-09 | 6,943 | 1 | 0 | 31 | 0 | 0 |
| 2025-10 | 6,950 | 7 | 0 | 0 | 7 | 0 |
| 2025-11 | 6,950 | 2 | 0 | 2 | 0 | 0 |
| 2025-12 | 6,949 | 0 | 0 | 1 | 0 | 0 |
| 2026-01 | 6,946 | 0 | 0 | 3 | 0 | 0 |
| 2026-02 | 6,483 | 5 | 0 | 468 | 4 | 0 |
| 2026-03 | 6,383 | 13 | 1 | 113 | 10 | 0 |
| 2026-04 | 6,383 | 6 | 1 | 6 | 3 | 0 |
| 2026-05 | 6,379 | 1 | 0 | 5 | 1 | 0 |
| 2026-06 | 6,392 | 14 | 0 | 1 | 11 | 0 |
| 2026-07 | 6,391 | 2 | 1 | 3 | 1 | 0 |
| 2026-08 | 6,184 | 1 | 0 | 208 | 1 | 0 |
| 2026-09 | 6,186 | 2 | 0 | 0 | 0 | 0 |
| 2026-10 | 6,187 | 2 | 0 | 1 | 2 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 115,398.0 |
| Harvested from disconnect pool | 174.0 |
| First assigned from spare pool | 22,404.0 |
| Reactivated own disconnects | 0.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 214,956.0 |
| Standard disconnect aging process (3+ months in DISC) | 7 |
| Abbreviated disconnect period (1–2 months in DISC) | 4 |
| Released directly to spare pool | 14,322.0 |
Of the 11 disconnect episodes this RespOrg has sent through aging, 36% were abbreviated (1–2 snapshots in DISC status).
Summary
OnCall Resporg Services, LLC (“OnCall”) is an Independent Responsible Organization
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