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OCN 0701 · Competitive Local Exchange Carrier

Frontier Southwest Incorporated dba Frontier Communications of Texas

d/b/a Frontier Communications of Texas

Part of the Frontier group — 89 OCNs across 30 states · 25,565 blocks combined.

Holding: Verizon Communications Inc

Total blocks
23
Recent (18 mo)
2
Medium
2
Old
18
Area codes
6
States
1
Address
600 Hidden Rdg,
Irving, TX 75038-3809
Website
frontier.com
First assigned block
2008-06-18
Last assigned block
2025-12-17
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HQ — Irving, TX

Street view of Frontier Southwest Incorporated dba Frontier Communications of Texas HQ
Street view
Satellite view of Frontier Southwest Incorporated dba Frontier Communications of Texas HQ
Satellite

Block portfolio at a glance

By age

Recent: 2Medium: 2Old: 18Undated: 123blocks
  • Recent (2) — last 18 mo
  • Medium (2)
  • Old (18)
  • Undated (1)

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 VirginiaKentuckyOhioMichiganWyomingMontanaIdahoWashingtonTexas (TX): 23 blocks — 2 recentCaliforniaArizonaNevadaUtahColoradoNew MexicoOregonNorth DakotaSouth DakotaNebraskaIowaMississippiIndianaIllinoisMinnesotaWisconsinMissouriArkansasOklahomaKansasLouisianaVirginiaDistrict of Columbia

Top area codes

Bars show total blocks; red overlay is recent.

68268175214446949453 / 29721

Block assignments by year

7 08
09
11
12
13
14
21
22
24
25

Best vanity numbers from Frontier Southwest Incorporated dba Frontier Communications of Texas'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
(945) 368-4527 ★ DOUGLAS Male / Masculine Names TX 2025-02-04 34,135
(945) 368-4468 ★ DOUGHNUTS Supermarkets / Deli / Groceries TX 2025-02-04 294
(945) 368-4687 ★ ENVIOUS Home TX 2025-02-04 267
(945) 368-4746 ★ ENVISION Vision / Optometry / Glasses TX 2025-02-04 217
(945) 368-4735 ★ ENTIRELY General TX 2025-02-04 134
(945) 368-4766 ENVIRON Technical / Electronics / Software TX 2025-02-04 51,492
(945) 368-4853 ENTITLE Insurance TX 2025-02-04 2,086

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 Frontier Southwest Incorporated dba Frontier Communications of Texas since 2024-11-12.

Number blockStateRate centerAssigned
(945) 357-1XXX TX Frisco 2025-12-17
(945) 368-4XXX TX Allen 2025-02-04

Area codes

NPABlocksRecentLast
682 6 — 2024-02-28
817 5 — 2024-02-26
214 4 — 2008-10-22
469 4 — 2021-06-21
945 3 2 2025-12-17
972 1 — 2014-03-25

States

StateBlocksRecent
TX 23 2

Sister OCNs in the Frontier group

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

OCNCompany name on fileHQ stateTotalRecent
9147 Southern New England Telephone Company dba Frontier Communications of Connecticut TX 2,723 —
2319 Frontier California Inc TX 2,618 —
4344 Frontier Southwest Incorporated dba Frontier Communications of Texas TX 2,210 2
0328 Frontier Florida LLC dba Frontier Communications of Florida TX 1,999 —
0615 Frontier North Inc - OH NY 1,692 —
1015 Frontier North Inc - IL NY 1,614 —
0695 Frontier North Inc - MI NY 1,178 —
0772 Frontier North Inc - IN NY 1,138 —
9214 Frontier West Virginia Inc NY 1,044 —
0096 Citizens Telecommunications Company of New York Inc dba Frontier Communicatons of New York NY 878 —
0886 Frontier North Inc - WI NY 728 —
0121 Frontier Telephone of Rochester Inc NY 638 —
1123 Citizens Telecommunications Company of Minnesota LLC dba Frontier Citizens Communications of MN NY 570 —
4420 Frontier California Inc TX 530 —
1183 Citizens Telecommunications Company of Illinois dba Frontier Citizens Communications of Illinois NY 517 —
0779 Frontier North Inc - IN NY 473 —
4335 Frontier Communications of the Carolinas Inc - SC NY 354 —
1036 Frontier North Inc - IL NY 343 —
2154 Frontier Southwest Incorporated dba Frontier Communications of Texas TX 341 —
7513 CTSI Inc - PA PA 334 —
1367 Frontier Communications of Minnesota Inc NY 302 —
4334 Frontier Communications of the Carolinas Inc - NC NY 285 —
0270 Citizens Telecommunications Company of West Virginia dba Frontier Communications of West Virginia NY 237 —
2308 Citizens Telecommunications Company of California Inc dba Frontier Communications of California NY 234 —
1128 Citizens Telecommuncations of Nebraska LLC dba Frontier Communications of Nebraska NY 219 —
0509 Frontier Communications of the Carolinas Inc - NC NY 196 —
1127 Frontier Communications of Iowa Inc NY 165 —
0681 Frontier Midstates Inc - MI NY 159 —
1000 Frontier Communications of the Carolinas Inc - IL NY 140 —
4449 Navajo Communications Company Inc dba Frontier Navajo Communications NY 100 —
0100 Frontier Communications of New York Inc NY 88 —
2172 Citizens Utilities Rural Company Inc dba Frontier Citizens Utilities Rural NY 86 —
4429 Citizens Telecommunications Company of Utah dba Frontier Communications of Utah NY 85 —
4426 Citizens Telecommunications Company of the White Mountains Inc dba Frontier Communications of the White Mountains NY 81 —
1055 Frontier Communications - Midland Inc NY 65 —
4421 Frontier Communications of the Southwest Inc - NV NY 63 —
0964 Frontier Communications of Wisconsin LLC NY 60 —
4450 Navajo Communications Company Inc dba Frontier Navajo Communications NY 60 —
4336 Citizens Telecommunications Company of Tennesee LLC dba Frontier Communications of Tennesee LLC NY 57 —
0870 Frontier Communications of Wisconsin LLC NY 56 —
0526 Frontier Communications of the Carolinas Inc - SC NY 45 —
2354 Citizens Telecommunications Company of Nevada dba Frontier Communications of Nevada NY 43 —
0577 Citizens Telecommunications Company of Tennesee LLC dba Frontier Communications of Tennesee LLC NY 40 —
3402 Citizens Telecommunications Company of California Inc dba Frontier Communications of California NY 40 —
0306 Frontier Communications of the South LLC - AL NY 39 —
2475 Frontier Communications of America Inc - NY NY 35 —
0072 Frontier Communications of Ausable Valley Inc NY 34 —
0831 Frontier Midstates Inc - IN NY 34 —
0122 Frontier Communications of Seneca Gorham Inc NY 31 —
0387 Frontier Communications of Georgia LLC NY 31 —

Sister OCNs under Verizon Communications Inc

OCNCompanyTotalRecent
7229 MCImetro Access Transmission Services LLC 19,828 88
9104 Verizon New York Inc 9,244 0
9208 Verizon Pennsylvania Inc 5,861 0
9102 Verizon New England Inc 5,475 0
9206 Verizon New Jersey Inc 5,300 0
9212 Verizon Maryland Inc 4,281 0
9213 Verizon Virginia Inc 4,025 0
7133 MCImetro Access Transmission Services LLC - NY 1,864 0
7240 MCImetro Access Transmission Services LLC - CA 1,775 0
8909 Codetel (DR) 1,143 0
7279 MCImetro Access Transmission Services LLC - MI 1,048 0
7448 MCI Worldcom Communications Inc - FL 1,041 1