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Numbers by age tier

Different age tiers need different chase strategies. Pick a tier to see this carrier's blocks in that window plus advice on what to do next.

HOT Recently issued
≤ 18 months · 0 blocks · highest chance the carrier can still help
WARM A while back
0 blocks · long shot but worth calling
COLD Several years ago
0 blocks · contact the number directly

HQ: Emerson, IA

Street view of Southwest Telephone Exchange Inc HQ
Street view
Satellite view of Southwest Telephone Exchange Inc HQ
Satellite

Block portfolio at a glance

By age

Undated: 33blocks
  • Recent (0). Last 18 mo
  • Medium (0)
  • Old (0)
  • Undated (3)

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 VirginiaKentuckyOhioMichiganWyomingMontanaIdahoWashingtonTexasCaliforniaArizonaNevadaUtahColoradoNew MexicoOregonNorth DakotaSouth DakotaNebraskaIowa (IA): 3 blocksMississippiIndianaIllinoisMinnesotaWisconsinMissouriArkansasOklahomaKansasLouisianaVirginiaDistrict of Columbia

Top area codes

Bars show total blocks; red overlay is recent.

7123

Area codes

NPABlocksRecentLast
712 3 · ·

States

StateBlocksRecent
IA 3 ·

Sister OCNs under Interstate 35 Telephone Company

OCNCompanyTotalRecent
1209 FMTC-I35 Inc dba OmniTel Communications 3 0