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Twilio Twilio Inc. is a publicly traded cloud communications platform that provides programmable APIs for voice, SMS, video, email, and other customer engagement channels, serving over 335,000 enterprises and 10 million developers worldwide. Found… read more ↓

Transfer network

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

Scroll to zoom, drag to pan, drag a node to reposition.

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

At a glance

Active numbers
5,462,351
#2 of 481
Change over 4 years
+4,756,948
+674.4% · #1 of 159
Opportunism Index
0.35%
#185 of 320
Vanity matches
13.4%
#185 of 206
Median inventory age
40 mo
3.3 years since last change
#99 of 206 oldest
Sub-codes in use
2
TWI01, TWXSM

Inventory by NPA

Click any NPA for total pool inventory across the industry.

By status

  • WORKING 5,462,331, 100.0%
  • UNAVAIL 3, 0.0%
  • RESERVED 3, 0.0%

Inventory age buckets

  • 1–3 months 133,189, 2.3%
  • 3–12 months 1,329,596, 23.2%
  • 1–2 years 571,341, 9.9%
  • 2–5 years 3,427,106, 59.7%
  • 5+ years 1,099, 0.0%

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

Total active inventory Numbers harvested from disconnect pool that month
5.5M4.1M2.7M1.4M02018-032022-122026-06
Show monthly numbers
MonthInventoryAcquiredHarvestedLostFrom spareTo spare
2018-03 705,403 0 0 0 0 0
2018-06 813,984 124,870 102 16,289 80,886 0
2018-09 964,579 153,680 219 3,085 45,708 0
2018-10 965,435 4,680 1 3,824 32 0
2018-11 984,609 19,593 0 419 13,317 0
2018-12 1,006,511 25,207 13 3,305 16,872 0
2019-01 1,017,568 11,909 13 852 83 2
2019-02 1,050,136 33,289 1 721 28,840 0
2019-03 1,057,629 7,875 0 382 26 0
2019-04 1,060,206 3,174 1 597 33 21
2019-05 1,073,558 14,112 0 760 9,151 0
2019-06 1,104,802 31,724 0 480 17,645 0
2019-08 1,085,341 48,841 1 68,302 38,628 63,879
2019-09 1,178,613 97,477 0 4,205 95,666 10
2019-10 1,210,556 33,065 0 1,122 29,785 257
2019-11 1,251,930 41,682 0 308 36,550 0
2019-12 1,286,990 35,407 2 347 32,254 0
2020-01 1,301,969 17,995 2 3,016 10,905 0
2020-02 1,340,764 41,511 0 2,716 29,947 0
2020-03 1,343,624 3,516 0 656 102 0
2020-04 1,455,762 112,718 1 580 93,832 7
2020-05 1,515,723 61,303 0 1,342 58,725 1
2020-06 1,620,600 111,397 0 6,520 100,779 1,035
2020-07 1,642,540 22,648 2 708 18,475 1
2020-08 1,657,515 24,249 0 9,274 11,482 1,865
2020-09 1,729,391 72,265 1 389 68,882 0
2020-10 1,902,045 179,141 1 6,487 173,405 157
2020-11 2,140,416 244,666 23 6,295 236,068 3
2020-12 2,140,951 1,838 0 1,303 56 0
2021-01 2,142,450 2,299 1 800 20 26
2021-02 2,143,779 1,754 0 425 34 2
2021-03 2,146,175 3,903 0 1,507 52 0
2021-04 2,399,699 254,453 47 929 245,829 6
2021-05 2,406,526 9,362 0 2,535 32 1
2022-05 2,896,593 514,151 6,349 24,084 399,532 15
2022-06 3,064,162 169,149 785 1,580 98,603 0
2022-07 3,068,424 5,460 0 1,198 20 0
2022-08 3,077,745 11,088 0 1,767 19 0
2022-09 3,085,754 9,819 0 1,810 49 0
2022-10 3,151,367 66,292 0 679 56,407 1
2022-11 3,227,190 76,252 96 429 57,109 0
2022-12 3,328,595 102,596 24 1,191 95,314 0
2023-01 3,379,834 52,207 0 968 39,976 3
2023-02 3,382,800 4,185 0 1,219 37 0
2023-03 3,384,399 2,854 0 1,255 22 0
2023-04 3,433,171 49,969 196 1,197 39,542 0
2023-05 3,439,884 7,782 0 1,069 16 0
2023-06 3,440,809 2,904 0 1,979 37 0
2023-07 3,068,424 12,242 115 384,627 0 247,858
2023-08 3,485,271 430,973 3,348 14,126 276,885 38
2023-09 3,492,408 11,524 2 4,387 436 2
2023-10 3,613,118 123,813 12 3,103 117,170 0
2023-11 3,734,358 125,543 30 4,303 117,682 1
2023-12 4,377,597 723,256 5,681 80,017 613,972 2
2024-02 3,844,135 74,062 21 607,524 2 520,290
2024-03 3,879,366 37,431 40 2,200 28,488 0
2024-04 3,930,109 53,376 13 2,633 49,439 0
2024-05 4,002,654 74,720 0 2,175 69,587 0
2024-06 4,042,894 41,933 166 1,693 39,770 0
2024-07 4,043,869 1,685 0 710 22 0
2024-08 4,069,264 27,248 0 1,853 19,791 0
2024-09 4,252,734 185,810 0 2,340 179,869 0
2024-10 4,251,758 1,799 0 2,775 19 0
2024-11 4,318,048 123,858 0 57,568 112,175 0
2024-12 4,315,620 3,797 0 6,225 11 0
2025-01 4,378,634 64,937 6 1,923 58,387 0
2025-02 4,458,681 92,487 1 12,440 89,113 0
2025-03 4,458,681 0 0 0 0 0
2025-04 4,506,255 49,811 4 2,237 45,840 0
2025-05 4,516,276 11,652 0 1,631 65 0
2025-06 4,627,807 113,686 504 2,155 108,927 0
2025-07 4,557,363 102,419 604 172,863 95,341 0
2025-08 4,625,922 74,283 521 5,724 67,849 0
2025-09 4,629,924 5,365 1 1,363 126 0
2025-10 4,711,893 83,445 85 1,476 79,853 0
2025-11 5,195,195 490,696 28 7,394 477,378 0
2025-12 5,346,460 175,033 8 23,768 159,874 10,663
2026-01 5,324,956 65,455 1 86,959 40,030 0
2026-02 5,313,625 11,340 1 22,671 10,035 0
2026-03 5,344,283 30,987 4 329 30,026 0
2026-04 5,440,028 96,415 306 670 49,021 0
2026-05 5,409,853 3,082 1 33,257 71 0
2026-06 5,462,351 53,135 3,358 637 24,297 0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg3,715,596.0
Harvested from disconnect pool68,226.0
First assigned from spare pool15,727,005.0
Reactivated own disconnects15.0

Outbound (numbers lost)

Direct transfer to another RespOrg3,602,052.0
Standard disconnect aging process (3+ months in DISC)1
Abbreviated disconnect period (1–2 months in DISC)6
Released directly to spare pool3,384,584.0

Of the 7 disconnect episodes this RespOrg has sent through aging, 86% 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 TW)

JY189,308.0Bandwidth
KS132,649.0Lumen Technologies (Lumen)
VZ129,420.0Verizon Business (Verizon)
GA77,942.0Comet Media
QT67,306.0TouchTone
BP60,997.0Five 9, Inc.
QC59,868.0382 Communications
OU51,172.0CallSource
AU35,000.0ATL Communications (ATLC)
SO29,491.0Signal One

Top direct-transfer destinations (OUT of TW)

JY524,708.0Bandwidth
GA33,557.0Comet Media
QT32,277.0TouchTone
YV27,240.0Invoca
BP24,659.0Five 9, Inc.
QI24,483.0Telnyx
KS20,435.0Lumen Technologies (Lumen)
SO15,024.0Signal One
YC14,521.0Marchex
OU13,081.0CallSource

Summary

A customer engagement PLATFORM

About Twilio

Twilio Inc. is a publicly traded cloud communications platform that provides programmable APIs for voice, SMS, video, email, and other customer engagement channels, serving over 335,000 enterprises and 10 million developers worldwide. Founded in 2008 by Jeff Lawson, Evan Cooke, and John Wolthuis, it is headquartered in San Francisco, California, with no parent or holding company and a market capitalization of approximately $14 billion as of early 2025.

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

Top vanity holdings

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