Amazon.com website screenshot
Website · visit · full size
Based in Seattle, WA
Based in Seattle, WA · street view · full size
Based in Seattle, WA
Based in Seattle, WA · satellite · full size

At a glance

Active numbers
598,289
#18 of 481
Change over 4 years
+590,928
+8027.8% · #10 of 156
Opportunism Index
0.34%
#159 of 228
Vanity matches
12.1%
#173 of 201
Median inventory age
32 mo
2.7 years since last change
#108 of 201 oldest
Sub-codes in use
2
TZN99, TZN01

Inventory by NPA

Click any NPA for total pool inventory across the industry.

By status

  • WORKING 598,275 · 100.0%

Inventory age buckets

  • 1–3 months 21,984 · 3.5%
  • 3–12 months 94,300 · 15.1%
  • 1–2 years 80,208 · 12.9%
  • 2–5 years 384,944 · 61.8%
  • 5+ years 16,839 · 2.7%

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
606K454K303K151K02018-032022-112026-04
Show monthly numbers
MonthInventoryAcquiredHarvestedLostFrom spareTo spare
2018-03 7,361 0 0 0 0 0
2018-06 11,468 4,109 9 2 1,477 0
2018-09 13,460 1,992 1 0 0 0
2018-10 13,960 500 22 0 417 0
2018-11 13,960 0 0 0 0 0
2018-12 14,761 850 0 49 818 0
2019-01 15,359 600 7 2 464 0
2019-02 15,359 0 0 0 0 0
2019-03 17,361 2,003 0 1 1,918 0
2019-04 16,860 0 0 501 0 480
2019-05 23,860 7,500 0 500 7,500 416
2019-06 25,477 1,619 0 2 1,291 0
2019-08 26,616 3,071 0 1,932 3,026 1,915
2019-09 28,977 2,363 0 2 2,300 0
2019-10 28,977 0 0 0 0 0
2019-11 29,571 601 0 7 559 0
2019-12 29,568 0 0 3 0 0
2020-01 30,168 600 0 0 445 0
2020-02 31,667 1,500 0 1 1,272 0
2020-03 52,862 21,201 0 6 20,990 0
2020-04 51,958 600 0 1,504 435 677
2020-05 51,965 7 0 0 6 0
2020-06 53,865 1,905 0 5 1,860 0
2020-07 53,863 443 0 445 389 317
2020-08 53,863 1 0 1 1 0
2020-09 54,957 1,100 0 6 1,099 0
2020-10 66,524 11,571 0 4 11,357 0
2020-11 76,555 10,035 131 4 9,767 0
2020-12 81,857 5,339 2 37 5,260 0
2021-01 83,757 1,902 0 2 1,763 0
2021-02 91,259 7,502 4 0 4,794 0
2021-03 98,695 7,439 0 3 7,312 0
2021-04 120,993 22,301 65 3 22,000 0
2021-05 123,003 2,012 0 2 1,893 0
2022-05 258,617 135,801 506 187 46,268 1
2022-06 259,972 1,395 29 40 223 0
2022-07 261,055 1,201 0 118 1,177 0
2022-08 261,029 5 0 31 4 0
2022-09 261,930 918 0 17 756 0
2022-10 262,087 170 0 13 124 1
2022-11 262,095 327 0 319 316 282
2022-12 262,078 36 0 53 29 0
2023-01 262,080 213 0 211 203 198
2023-02 263,542 1,470 0 8 220 0
2023-03 263,459 124 0 207 9 0
2023-04 262,633 104 0 930 100 0
2023-05 331,783 69,427 0 277 5 0
2023-06 372,899 41,189 0 73 2,182 0
2023-07 261,055 1,636 0 113,480 0 6,514
2023-08 372,963 113,579 485 1,671 6,571 3
2023-09 376,336 3,439 1 66 3,295 1
2023-10 376,333 50 0 53 19 0
2023-11 376,704 420 0 49 407 0
2023-12 514,076 138,286 628 914 45,109 0
2024-02 441,654 923 0 73,345 14 45,993
2024-03 460,472 19,041 17 223 18,507 59
2024-04 460,202 14 0 284 2 0
2024-05 465,372 5,224 0 54 567 0
2024-06 465,383 171 0 160 15 0
2024-07 477,816 12,464 1 31 0 0
2024-08 477,981 181 0 16 99 0
2024-09 478,265 337 5 53 223 0
2024-10 495,143 17,047 78 169 14,172 0
2024-11 495,975 889 0 57 867 0
2024-12 497,042 1,105 0 38 0 0
2025-01 513,725 17,066 1 383 14,746 0
2025-02 515,060 1,381 0 46 1,000 0
2025-03 515,060 0 0 0 0 0
2025-04 540,213 25,197 36 44 22,873 0
2025-05 506,136 6 1 34,083 5 0
2025-06 529,473 23,863 514 526 21,662 0
2025-07 531,446 2,060 0 87 4 0
2025-08 531,237 13 0 222 1 0
2025-09 558,020 26,804 79 21 19,909 0
2025-10 578,466 20,504 178 58 20,324 0
2025-11 583,885 5,574 0 155 0 0
2025-12 584,397 544 0 32 1 0
2026-01 585,434 1,151 0 114 0 0
2026-02 585,546 1,259 0 1,147 150 0
2026-03 605,869 20,508 0 185 19,927 0
2026-04 598,289 399 0 7,979 4 0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg501,530.0
Harvested from disconnect pool3,078.0
First assigned from spare pool417,796.0
Reactivated own disconnects0.0

Outbound (numbers lost)

Direct transfer to another RespOrg229,056.0
Entered multi-month disconnect (aging)0.0
Released directly to spare pool139,599.0

Top direct-transfer sources (INto TZ)

KS109,505.0Lumen Technologies (Lumen)
AU104,970.0ATL Communications (ATLC)
AT11,481.0AT&T
VZ6,288.0Verizon Business (Verizon)
JY2,437.0Bandwidth
TW1,966.0Twilio
GA1,650.0Comet Media
GO1,035.0Google Voice
BP1,011.0Five 9, Inc.
MY970.0Mayfair Communication (Primetel)

Top direct-transfer destinations (OUT of TZ)

VZ35,885.0Verizon Business (Verizon)
AT11,292.0AT&T
LQ9,217.0Inteliquent
KS4,155.0Lumen Technologies (Lumen)
TW3,594.0Twilio
GO1,035.0Google Voice
BP960.0Five 9, Inc.
GA947.0Comet Media
YV943.0Invoca
JY913.0Bandwidth

Top vanity holdings

Summary

They're Amazon!

About Amazon.com

Amazon.com, Inc. is an American multinational technology company primarily engaged in e-commerce, cloud computing via Amazon Web Services (AWS), online advertising, digital streaming, and artificial intelligence.[1][2][5] Founded in 1994 by Jeff Bezos in Bellevue, Washington (now headquartered in Seattle, WA), it began as an online bookstore and expanded into 'The Everything Store' offering vast product categories.[1][2][5] Publicly traded since 1997 with a massive global scale (hundreds of millions of customers, operations in 20+ countries), it is one of the Big Five tech giants and the world's largest online retailer.[1][3][5]

Toll-free / RespOrg activity: No information found on Amazon.com's toll-free or RespOrg activity (code TZN01) in available sources.

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

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