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Zultys Zultys is a private company founded prior to 2006 that provides unified communications platforms, including IP phone systems integrating voice, video, data, and mobility for businesses of all sizes.[1][2][6] Headquartered in Sunnyvale, Cali… read more ↓

Transfer network

How toll free numbers move between Zultys (UR) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Zultys is highlighted. Open the full interactive map →

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Transfer Funnel (acquired at a drop, then moved on) Off-hours fast pickup
Zultys  website screenshot
Website, visit, full size
Based in Sunnyvale, CA
Based in Sunnyvale, CA, street view, full size
Based in Sunnyvale, CA
Based in Sunnyvale, CA, satellite, full size

At a glance

Active numbers
5,057
#198 of 481
Change over 4 years
+3,429
+210.6%
Opportunism Index
0.19%
#218 of 320
Vanity matches
26.2%
#93 of 206
Median inventory age
5 mo
0.4 years since last change
#184 of 206 oldest
Sub-codes in use
2
URZ01, URZ02

Inventory by NPA

Click any NPA for total pool inventory across the industry.

By status

  • WORKING 5,037, 99.9%
  • TRANSIT 6, 0.1%

Inventory age buckets

  • 1–3 months 54, 0.9%
  • 3–12 months 4,969, 87.0%
  • 1–2 years 6, 0.1%
  • 2–5 years 3, 0.1%
  • 5+ years 5, 0.1%

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

Total active inventory Numbers harvested from disconnect pool that month
5K4K3K1K02018-032022-122026-06
Show monthly numbers
MonthInventoryAcquiredHarvestedLostFrom spareTo spare
2018-03 1,628 0 0 0 0 0
2018-06 1,674 56 1 10 1 2
2018-09 1,832 161 0 3 4 0
2018-10 1,853 23 0 2 0 0
2018-11 1,866 24 0 11 0 0
2018-12 1,902 39 0 3 1 1
2019-01 1,918 16 0 0 1 0
2019-02 1,930 17 0 5 1 0
2019-03 1,937 10 0 3 0 1
2019-04 1,961 24 0 0 1 0
2019-05 1,975 17 0 3 0 0
2019-06 2,013 49 1 11 0 0
2019-08 1,906 29 0 136 2 127
2019-09 2,033 151 0 24 127 0
2019-10 1,948 11 0 96 0 0
2019-11 1,962 25 0 11 2 0
2019-12 1,995 36 0 3 0 0
2020-01 2,040 53 0 8 0 0
2020-02 2,065 31 0 6 1 0
2020-03 2,074 12 0 3 0 0
2020-04 2,111 41 0 4 0 0
2020-05 2,123 13 0 1 0 0
2020-06 2,128 16 0 11 0 0
2020-07 2,145 23 0 6 0 0
2020-08 2,181 46 0 10 1 0
2020-09 2,194 15 0 2 1 0
2020-10 2,215 30 0 9 0 0
2020-11 2,226 22 0 11 2 0
2020-12 2,250 28 0 4 0 1
2021-01 2,262 17 0 5 0 0
2021-02 2,273 15 0 4 1 0
2021-03 2,295 24 0 2 2 0
2021-04 2,315 29 0 9 8 0
2021-05 2,324 27 0 18 1 0
2022-05 2,517 284 0 91 3 3
2022-06 2,758 242 0 1 0 0
2022-07 2,766 12 0 4 0 0
2022-08 2,792 26 0 0 0 0
2022-09 2,840 59 0 11 1 0
2022-10 2,859 20 0 1 0 0
2022-11 3,534 712 1 37 612 32
2022-12 3,552 21 0 3 0 0
2023-01 3,505 18 0 65 0 63
2023-02 3,513 24 0 16 0 0
2023-03 3,577 66 0 2 0 0
2023-04 3,580 30 0 27 0 0
2023-05 3,598 22 0 4 0 0
2023-06 3,613 20 0 5 1 0
2023-07 2,766 74 0 921 0 493
2023-08 3,652 970 7 84 493 0
2023-09 3,671 23 0 4 0 0
2023-10 3,671 33 0 33 0 0
2023-11 3,698 38 0 11 0 0
2023-12 4,385 779 0 92 13 0
2024-02 3,720 75 0 740 0 11
2024-03 3,748 36 0 8 0 0
2024-04 3,765 24 0 7 0 0
2024-05 3,814 54 0 5 0 0
2024-06 3,831 35 0 18 6 0
2024-07 3,870 44 0 5 0 0
2024-08 3,960 99 0 9 0 0
2024-09 4,088 133 0 5 1 0
2024-10 4,113 28 0 3 10 0
2024-11 4,340 243 2 16 0 0
2024-12 4,349 24 0 15 1 0
2025-01 4,423 94 0 20 4 0
2025-02 4,551 130 0 2 0 0
2025-03 4,551 0 0 0 0 0
2025-04 4,518 21 0 54 1 0
2025-05 4,536 26 0 8 3 0
2025-06 4,544 20 0 12 0 0
2025-07 4,711 172 0 5 149 0
2025-08 4,739 37 0 9 13 0
2025-09 4,771 42 0 10 3 0
2025-10 4,796 32 0 7 20 0
2025-11 4,997 206 0 5 2 0
2025-12 5,023 29 0 3 3 0
2026-01 5,043 32 0 12 9 0
2026-02 5,033 14 0 24 0 0
2026-03 5,059 28 0 2 0 0
2026-04 5,052 20 0 27 0 0
2026-05 5,067 21 0 6 5 0
2026-06 5,057 22 0 32 2 0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg14,460.0
Harvested from disconnect pool36.0
First assigned from spare pool4,536.0
Reactivated own disconnects24.0

Outbound (numbers lost)

Direct transfer to another RespOrg8,120.0
Standard disconnect aging process (3+ months in DISC)57
Abbreviated disconnect period (1–2 months in DISC)214
Released directly to spare pool2,936.0

Of the 271 disconnect episodes this RespOrg has sent through aging, 79% 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 UR)

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RB218.0RingCentral
VZ192.0Verizon Business (Verizon)
LQ175.0Inteliquent
RS165.0AccessLine
BC105.0Incontact (Nice)

Top direct-transfer destinations (OUT of UR)

KS312.0Lumen Technologies (Lumen)
JY227.0Bandwidth
RB196.0RingCentral
LG129.0Lumen Technologies (Lumen)
LQ128.0Inteliquent
GA81.0Comet Media
OT70.0Vonage
QY56.0Inteliquent
JT56.0Comcast
BC52.0Incontact (Nice)

Summary

Founded in 2001 as a VoIP service, Zultys has been growing with constant innovation for over twenty years, establishing itself as a financially strong, stable, market-leading company in the Unified Communications (UCaaS) industry and continually reinvesting in its technology and growth.

About Zultys

Zultys is a private company founded prior to 2006 that provides unified communications platforms, including IP phone systems integrating voice, video, data, and mobility for businesses of all sizes.[1][2][6] Headquartered in Sunnyvale, California, it operates without a known parent or holding company and employs approximately 135 people with reported revenue of $20.8 million.[2]

AI-generated summary (confidence: medium), last updated 2026-04-30. Verify against primary sources before quoting.

Top vanity holdings

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