
Call Delivery Systems KO
- Website: https://www.calldeliverysystems.com/ Domain since 2016 (10y)
At a glance
#28 of 201 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 94,890 · 98.8%
- DISCONN 1,119 · 1.2%
- TRANSIT 18 · 0.0%
- RESERVED 7 · 0.0%
- UNAVAIL 1 · 0.0%
Inventory age buckets
- 1–3 months 3,035 · 2.6%
- 3–12 months 5,561 · 4.7%
- 1–2 years 11 · 0.0%
- 2–5 years 67 · 0.1%
- 5+ years 86,216 · 72.5%
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.
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Trajectory
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 114,276 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 278,099 | 167,490 | 8 | 3,667 | 3,030 | 313 |
| 2018-09 | 124,671 | 19,072 | 2,524 | 172,500 | 1,061 | 4,161 |
| 2018-10 | 154,177 | 44,065 | 14 | 14,559 | 297 | 9,261 |
| 2018-11 | 114,166 | 5,098 | 66 | 45,109 | 4,732 | 0 |
| 2018-12 | 112,316 | 1,195 | 123 | 3,045 | 884 | 2,942 |
| 2019-01 | 109,527 | 1,106 | 57 | 3,895 | 870 | 2,106 |
| 2019-02 | 111,699 | 3,516 | 62 | 1,344 | 2,598 | 20 |
| 2019-03 | 109,110 | 1,153 | 4 | 3,742 | 557 | 3,555 |
| 2019-04 | 102,334 | 1,988 | 19 | 8,764 | 1,438 | 0 |
| 2019-05 | 103,649 | 1,320 | 11 | 5 | 1,276 | 3 |
| 2019-06 | 101,329 | 1,132 | 39 | 3,452 | 942 | 3,251 |
| 2019-08 | 92,513 | 2,572 | 68 | 11,388 | 958 | 11,380 |
| 2019-09 | 104,944 | 12,434 | 0 | 3 | 12,382 | 0 |
| 2019-10 | 103,704 | 2,630 | 30 | 3,870 | 1,443 | 363 |
| 2019-11 | 104,203 | 577 | 13 | 78 | 3 | 0 |
| 2019-12 | 104,508 | 317 | 6 | 12 | 161 | 0 |
| 2020-01 | 123,081 | 18,704 | 16 | 131 | 267 | 0 |
| 2020-02 | 130,112 | 7,031 | 0 | 0 | 524 | 0 |
| 2020-03 | 88,720 | 48 | 0 | 41,440 | 40 | 0 |
| 2020-04 | 85,473 | 0 | 0 | 3,247 | 0 | 0 |
| 2020-05 | 86,319 | 846 | 0 | 0 | 1 | 0 |
| 2020-06 | 86,318 | 0 | 0 | 1 | 0 | 0 |
| 2020-07 | 86,317 | 0 | 0 | 1 | 0 | 0 |
| 2020-08 | 86,317 | 0 | 0 | 0 | 0 | 0 |
| 2020-09 | 86,307 | 0 | 0 | 10 | 0 | 0 |
| 2020-10 | 86,307 | 0 | 0 | 0 | 0 | 0 |
| 2020-11 | 86,307 | 0 | 0 | 0 | 0 | 0 |
| 2020-12 | 86,296 | 0 | 0 | 11 | 0 | 0 |
| 2021-01 | 86,296 | 0 | 0 | 0 | 0 | 0 |
| 2021-02 | 86,296 | 0 | 0 | 0 | 0 | 0 |
| 2021-03 | 86,296 | 0 | 0 | 0 | 0 | 0 |
| 2021-04 | 86,289 | 1 | 0 | 8 | 0 | 0 |
| 2021-05 | 86,287 | 0 | 0 | 2 | 0 | 0 |
| 2022-05 | 86,308 | 39 | 0 | 18 | 0 | 0 |
| 2022-06 | 86,307 | 0 | 0 | 1 | 0 | 0 |
| 2022-07 | 86,307 | 0 | 0 | 0 | 0 | 0 |
| 2022-08 | 86,307 | 0 | 0 | 0 | 0 | 0 |
| 2022-09 | 86,307 | 0 | 0 | 0 | 0 | 0 |
| 2022-10 | 86,322 | 15 | 0 | 0 | 0 | 0 |
| 2022-11 | 86,322 | 0 | 0 | 0 | 0 | 0 |
| 2022-12 | 86,322 | 0 | 0 | 0 | 0 | 0 |
| 2023-01 | 86,322 | 0 | 0 | 0 | 0 | 0 |
| 2023-02 | 86,322 | 0 | 0 | 0 | 0 | 0 |
| 2023-03 | 86,333 | 11 | 0 | 0 | 0 | 0 |
| 2023-04 | 86,333 | 1 | 0 | 1 | 0 | 0 |
| 2023-05 | 86,333 | 0 | 0 | 0 | 0 | 0 |
| 2023-06 | 86,333 | 0 | 0 | 0 | 0 | 0 |
| 2023-07 | 86,307 | 1 | 0 | 27 | 0 | 0 |
| 2023-08 | 86,333 | 27 | 0 | 1 | 0 | 1 |
| 2023-09 | 86,333 | 0 | 0 | 0 | 0 | 0 |
| 2023-10 | 86,333 | 0 | 0 | 0 | 0 | 0 |
| 2023-11 | 86,333 | 0 | 0 | 0 | 0 | 0 |
| 2023-12 | 86,343 | 11 | 0 | 1 | 0 | 0 |
| 2024-02 | 86,334 | 1 | 0 | 10 | 0 | 0 |
| 2024-03 | 86,335 | 1 | 0 | 0 | 0 | 0 |
| 2024-04 | 86,335 | 0 | 0 | 0 | 0 | 0 |
| 2024-05 | 86,335 | 0 | 0 | 0 | 0 | 0 |
| 2024-06 | 86,344 | 9 | 0 | 0 | 0 | 0 |
| 2024-07 | 86,344 | 0 | 0 | 0 | 0 | 0 |
| 2024-08 | 86,343 | 0 | 0 | 1 | 0 | 0 |
| 2024-09 | 86,602 | 259 | 0 | 0 | 259 | 0 |
| 2024-10 | 86,343 | 0 | 0 | 259 | 0 | 0 |
| 2024-11 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2024-12 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-01 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-02 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-03 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-05 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-06 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-07 | 86,343 | 0 | 0 | 0 | 0 | 0 |
| 2025-08 | 86,627 | 284 | 26 | 0 | 0 | 0 |
| 2025-09 | 90,112 | 3,485 | 1,210 | 0 | 0 | 0 |
| 2025-10 | 96,870 | 6,759 | 4,985 | 1 | 0 | 0 |
| 2025-11 | 97,339 | 476 | 187 | 7 | 0 | 0 |
| 2025-12 | 97,595 | 416 | 154 | 160 | 0 | 0 |
| 2026-01 | 93,323 | 943 | 68 | 5,215 | 0 | 49 |
| 2026-02 | 94,090 | 1,492 | 378 | 725 | 0 | 0 |
| 2026-03 | 94,535 | 714 | 177 | 269 | 0 | 4 |
| 2026-04 | 96,049 | 1,831 | 334 | 317 | 0 | 240 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 26,790.0 |
| Harvested from disconnect pool | 22,557.0 |
| First assigned from spare pool | 777.0 |
| Reactivated own disconnects | 483.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 1,260.0 |
| Standard disconnect aging process (3+ months in DISC) | 0 |
| Abbreviated disconnect period (1–2 months in DISC) | 7,957 |
| Released directly to spare pool | 1,172.0 |
Of the 7,957 disconnect episodes this RespOrg has sent through aging, 100% 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 vanity holdings
Summary
Wow a mass misdial marketing service with a real website that was started in 2018.
About Call Delivery Systems
Call Delivery Systems is a small telecommunications company operating as a RespOrg with code KOK01, headquartered at 8619 Washington Blvd, Culver City, California (Los Angeles area), United States.[3] The company has fewer than 25 employees and annual revenue under $5 million, with no information available on year founded, public/private status, parent company, or specific primary business beyond toll-free services.[3]
AI-generated summary (confidence: low), last updated 2026-04-30. Verify against primary sources before quoting.