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OCN 453F · Competitive Local Exchange Carrier

Onvoy LLC - MT

d/b/a Neutral Tandem-Montana LLC

Part of the Neutral Tandem group — 10 OCNs across 11 states · 27,664 blocks combined.

Total blocks
905
Recent (18 mo)
4
Medium
38
Old
848
Area codes
1
States
1
Address
1 S Wacker Dr, Suite 200
Chicago, IL 60606-4614
Website
Neutral Tandem
First assigned block
2003-02-13
Last assigned block
2025-04-09
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HQ — Chicago, IL

Street view of Onvoy LLC - MT HQ
Street view
Satellite view of Onvoy LLC - MT HQ
Satellite

Block portfolio at a glance

By age

Recent: 4Medium: 38Old: 848Undated: 15905blocks
  • Recent (4) — last 18 mo
  • Medium (38)
  • Old (848)
  • Undated (15)

Footprint by state

Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.

HawaiiAlaskaFloridaSouth CarolinaGeorgiaAlabamaNorth CarolinaTennesseeRhode IslandConnecticutMassachusettsMaineNew HampshireVermontNew YorkNew JerseyPennsylvaniaDelawareMarylandWest VirginiaKentuckyOhioMichiganWyomingMontana (MT): 905 blocks — 4 recentIdahoWashingtonTexasCaliforniaArizonaNevadaUtahColoradoNew MexicoOregonNorth DakotaSouth DakotaNebraskaIowaMississippiIndianaIllinoisMinnesotaWisconsinMissouriArkansasOklahomaKansasLouisianaVirginiaDistrict of Columbia

Top area codes

Bars show total blocks; red overlay is recent.

406905 / 4

Block assignments by year

03
06
07
08
09
10
11
12
13
14
15
16
17
18
194 19
20
208 21
22
23
24
25

Best vanity numbers from Onvoy LLC - MT's recent issuances

Numbers in blocks issued in the last 18 months whose digits spell a useful word. Filter by state and category to find one for your business. ★ marks Mike's curated standouts.

NumberSpellsCategoryStateBlock issuedScore
(440) 266-7269 ★ COMPANY Business OH 2025-09-18 302,351
(440) 266-7883 ★ COMPUTER Computer / Hardware OH 2025-09-18 272,250
(601) 626-2436 ★ MANAGEMENT Pain Related MS 2025-04-18 127,141
(331) 344-4825 ★ DIGITAL News / Media / Communications IL 2026-02-02 126,454
(464) 256-8446 ★ CLOTHING Clothing / Apparel / Fabric IL 2025-02-05 113,815
(601) 236-8725 ★ CENTRAL Geography / Local / Directions MS 2025-12-11 103,770
(220) 277-2728 ★ APPARATUS VAN OH 2025-03-19 100,693
(380) 277-2728 ★ APPARATUS VAN OH 2025-12-17 100,693
(326) 242-7537 ★ CHARLES Male / Masculine Names OH 2025-12-11 76,704
(234) 468-3763 ★ INTERNET Internet Companies OH 2026-02-19 75,029
(440) 266-7858 ★ CONSULTING Consulting / Therapy / Planning OH 2025-09-18 69,515
(326) 244-5373 ★ CHILDREN Children / Daycare / Baby OH 2026-02-19 65,936

Want one of these or something similar? Request the number from this carrier and we'll route the request.

Most recent assignments

Last 18 months — these blocks were issued by Onvoy LLC - MT since 2024-11-12.

Number blockStateRate centerAssigned
(406) 992-0XXX MT Helena 2025-04-09
(406) 610-0XXX MT Missoula 2025-01-13
(406) 610-1XXX MT Missoula 2025-01-13
(406) 610-8XXX MT Missoula 2025-01-13

Area codes

NPABlocksRecentLast
406 905 4 2025-04-09

States

StateBlocksRecent
MT 905 4

Sister OCNs in the Neutral Tandem group

Same customer-facing carrier, different state-registered OCN. Combined stats are on the Neutral Tandem group page.

OCNCompany name on fileHQ stateTotalRecent
224C Onvoy LLC IL 8,314 406
464C Onvoy LLC - OH IL 7,228 392
525E Onvoy LLC - TN IL 3,788 166
896E Onvoy LLC - KY IL 2,918 69
719E Onvoy LLC - MS IL 2,104 35
689F Onvoy LLC - ID IL 1,302 12
162G Onvoy LLC - SD IL 513 8
454F Onvoy LLC - ME IL 373 1
637E Onvoy LLC - NH IL 219 7