OnCall RespOrg Svcs
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OnCall RespOrg Svcs OnCall RespOrg Svcs is an independent RespOrg providing toll-free number management services, allowing clients to control routing and switch carriers without changing numbers. It operates as a non-carrier affiliated entity focused solely on… read more ↓
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 →
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- 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
#32 of 206 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 6,174, 96.7%
- TRANSIT 208, 3.3%
Inventory age buckets
- 1–3 months 15, 0.2%
- 3–12 months 38, 0.4%
- 1–2 years 50, 0.5%
- 2–5 years 2,057, 21.0%
- 5+ years 4,014, 41.0%
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 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 115,392.0 |
| Harvested from disconnect pool | 171.0 |
| First assigned from spare pool | 22,392.0 |
| Reactivated own disconnects | 0.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 214,320.0 |
| 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
About OnCall RespOrg Svcs
OnCall RespOrg Svcs is an independent RespOrg providing toll-free number management services, allowing clients to control routing and switch carriers without changing numbers. It operates as a non-carrier affiliated entity focused solely on RespOrg services from its headquarters in Endicott, NY, United States. No information is available on year founded, parent company, public/private status, or company size.
AI-generated summary (confidence: low), last updated 2026-04-30. Verify against primary sources before quoting.
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