Resporgs.com

RespOrg directory

XO Communications

alias: Part of Verizon now

Large Telcom Group: Verizon

Request a specific #

Looking for a toll free number from XO Communications?

Tell me which number you want. I pass appropriate requests to the company that holds the number, and I reply within one business day. It's free to ask.

Request a number from XO Communications →

XO Communications (RespOrg code IV) controls 6,860 US toll free numbers as of October 2026. That is down 29,133 (81%) since March 2018. Resporgs.com files it under Large Telcom. It is part of the Verizon group. Based in Beaverton, OR. More about XO Communications ↓

Transfer network

How toll free numbers move between XO Communications (IV) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; XO Communications 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
XO Communications website screenshot
Website, visit, full size
Based in Beaverton, OR
Based in Beaverton, OR, street view, full size
Based in Beaverton, OR
Based in Beaverton, OR, satellite, full size

At a glance

Active numbers
6,860
#185 of 479
Change over 4 years
-29,133
-80.9% · #105 of 159
Opportunism Index
0.00%
#284 of 320
Vanity matches
16.1%
#168 of 207
Median inventory age
108 mo
9.0 years since last change
#31 of 207 oldest
Sub-codes in use
3
IVN99, IVN04, IVN01

Inventory by NPA

1,391
800
768
888
1,811
877
1,383
866
826
855
615
844
66
833

Click any NPA for total pool inventory across the industry.

By status

  • WORKING 6,846, 100.0%

Inventory age buckets

  • 5+ years 6,846, 93.7%

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
36K27K18K9K02018-032023-022026-10
Show monthly numbers
MonthInventoryAcquiredHarvestedLostFrom spareTo spare
2018-03 35,993 0 0 0 0 0
2018-06 31,578 340 0 4,755 306 1
2018-09 28,395 349 0 3,532 202 0
2018-10 28,481 134 0 48 134 0
2018-11 28,496 54 0 39 50 0
2018-12 28,475 53 0 74 52 0
2019-01 28,422 1 0 54 0 0
2019-02 28,421 34 0 35 29 0
2019-03 28,325 0 0 96 0 0
2019-04 28,262 2 0 65 0 0
2019-05 28,196 0 0 66 0 0
2019-06 26,855 8 0 1,349 0 0
2019-08 24,110 53 0 2,798 16 2,700
2019-09 26,474 2,655 0 291 2,653 0
2019-10 26,059 6 0 421 0 0
2019-11 25,895 15 0 179 1 0
2019-12 25,668 2 0 229 1 0
2020-01 24,596 44 0 1,116 0 0
2020-02 22,301 1 0 2,296 0 0
2020-03 22,255 5 0 51 0 0
2020-04 21,640 0 0 615 0 0
2020-05 18,955 7 0 2,692 0 0
2020-06 18,938 7 0 24 0 0
2020-07 18,215 7 0 730 0 0
2020-08 18,215 0 0 0 0 0
2020-09 18,147 5 0 73 0 0
2020-10 17,930 1 0 218 1 0
2020-11 16,673 0 0 1,257 0 0
2020-12 16,346 1 0 328 0 0
2021-01 16,269 0 0 77 0 0
2021-02 16,215 1 0 55 1 0
2021-03 16,020 0 0 195 0 0
2021-04 15,886 0 0 134 0 0
2021-05 15,329 0 0 557 0 0
2022-05 9,724 2 0 5,607 2 1,111
2022-06 9,721 0 0 3 0 0
2022-07 8,634 0 0 1,087 0 0
2022-08 8,634 0 0 0 0 0
2022-09 8,634 0 0 0 0 0
2022-10 8,634 0 0 0 0 0
2022-11 8,628 0 0 6 0 0
2022-12 8,625 0 0 3 0 0
2023-01 8,625 0 0 0 0 0
2023-02 8,625 0 0 0 0 0
2023-03 8,625 0 0 0 0 0
2023-04 8,625 0 0 0 0 0
2023-05 8,627 2 0 0 0 0
2023-06 8,614 0 0 13 0 0
2023-07 8,634 22 0 2 0 0
2023-08 8,614 2 0 22 0 0
2023-09 8,614 0 0 0 0 0
2023-10 8,614 0 0 0 0 0
2023-11 8,614 0 0 0 0 0
2023-12 8,588 0 0 26 0 0
2024-02 8,614 26 0 0 0 0
2024-03 8,613 0 0 1 0 0
2024-04 8,613 0 0 0 0 0
2024-05 8,613 0 0 0 0 0
2024-06 8,613 0 0 0 0 0
2024-07 8,613 0 0 0 0 0
2024-08 8,612 0 0 1 0 0
2024-09 8,610 0 0 2 0 0
2024-10 8,603 0 0 7 0 0
2024-11 8,595 0 0 8 0 0
2024-12 8,589 0 0 6 0 0
2025-01 8,554 0 0 35 0 0
2025-02 8,536 0 0 18 0 0
2025-03 8,536 0 0 0 0 0
2025-04 8,520 0 0 16 0 0
2025-05 8,520 0 0 0 0 0
2025-06 8,480 0 0 40 0 0
2025-07 8,421 0 0 59 0 0
2025-08 8,353 0 0 68 0 0
2025-09 8,352 0 0 1 0 0
2025-10 8,352 0 0 0 0 0
2025-11 8,324 0 0 28 0 0
2025-12 8,323 0 0 1 0 0
2026-01 6,860 0 0 1,463 0 0
2026-02 6,860 0 0 0 0 0
2026-03 6,860 0 0 0 0 0
2026-04 6,860 0 0 0 0 0
2026-05 6,860 0 0 0 0 0
2026-06 6,860 0 0 0 0 0
2026-07 6,860 0 0 0 0 0
2026-08 6,860 0 0 0 0 0
2026-09 6,860 0 0 0 0 0
2026-10 6,860 0 0 0 0 0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg1,173.0
Harvested from disconnect pool0.0
First assigned from spare pool10,344.0
Reactivated own disconnects276.0

Outbound (numbers lost)

Direct transfer to another RespOrg85,509.0
Standard disconnect aging process (3+ months in DISC)1,234
Abbreviated disconnect period (1–2 months in DISC)1,946
Released directly to spare pool11,436.0

Of the 3,180 disconnect episodes this RespOrg has sent through aging, 61% 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 IV)

NL154.0XO (Verizon)
VZ58.0Verizon Business (Verizon)
AT43.0AT&T
BC26.0Incontact (Nice)
JY25.0Bandwidth
KS16.0Lumen Technologies (Lumen)
AL14.0Lumen Technologies (Lumen)
LG12.0Lumen Technologies (Lumen)
IM8.0Integra Telecom (Allstream)
HD7.0Line Systems

Top direct-transfer destinations (OUT of IV)

VZ7,650.0Verizon Business (Verizon)
LG4,062.0Lumen Technologies (Lumen)
TW3,616.0Twilio
AT1,341.0AT&T
AU1,206.0NumHub
WL1,101.0BCM One (BCM-One)
JY1,099.0Bandwidth
SP937.0Sprint (T-Mobile)
QI835.0Telnyx
KS751.0Lumen Technologies (Lumen)

Summary

This is the Telco Verizon, not the Verizon Cellular.

About XO Communications

XO Communications was a telecommunications company providing IP network services, Ethernet networks, cloud connectivity, unified communications, voice, Internet access, and managed services primarily to small and medium-sized enterprises. It was acquired by Verizon Communications in 2017 for $1.8 billion, with all services migrated to Verizon by summer 2020; the XO brand now operates under Verizon Business. Founded as Allegiance Telecom (exact year not specified in sources), it was headquartered in Herndon, VA prior to acquisition (user-noted Beaverton, OR unconfirmed), and is private as a former subsidiary of public Verizon.

Affiliations: Subsidiary of Verizon Communications; previously known as Nextlink Communications, Concentric Network Corporation, and Allegiance Telecom.

Toll free / RespOrg activity: Verizon's XO page mentions toll-free numbers as a quick link service post-migration, but no specific toll-free or RespOrg news found.

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

Top vanity holdings

877WIRELESS 800CONDUIT 800CONDUIT 866TRADERS 844TUBETNR 800ZETLAND 866VICKERS 800CONDUIT 866METERING 800JUICEUP 866ALPHASAFE 877WIRELES 855POSHPROX 855UPGRDME 888BLITZBX 866ALPHAPC 800WETLAND 800JUICEUP 866LIMPPRO 800JUICEUP 877TELAFIT 866INSTPRO 866SPDREVIV 877WIRELES 888STIRFAM 877WIRELES 877BLOWZRO 866ALPHAPAL 800STARFIX 877WIRELES 888QUICKGPS 877WIRELES 800JUICEUP 800WETLAND 800CONDUIT 866DRHAIR1 800CONDUIT 866TRADES7 866TRADERS 800GUTRVAC 866TRADESS 866TRADERS 866FINDPPL 888QUICKPRO 877FPVKITS 855AAARATS 866TRADERS 855247POWR 866TRADE-77 866TRADERS 866TRADERS 855ABCRATS 866TRADERS 888TRANSMT 866FINDPPL 87721-DAYS 866HORSPRO 866ALPHAPAV 866ALPHARANK 877VOTESGN

Contact-form message

with a customer of XO (Verizon)
Request a specific #