The 720 Area Code (or Area Code 720) is located in the state of CO. Area Code 720 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 1.11 million unique phone numbers and 2.33 million individuals near the city of Denver
Area code 720 was put into service. Area code 720 is an overlay of area code 303.
Aurora, Brighton, Deer Trail, Denver, Englewood, Fort Lupton, Golden, Henderson, Hudson, Idaho Springs, Keenesburg, Littleton, Longmont, Lyons, Sedalia.
| PREFIX | COUNTY | CITY | CARRIER | TYPE |
|---|---|---|---|---|
| 720-200 | Denver | Denver | Qwest Corporation | Landline |
| 720-201 | Denver | Denver | New Cingular Wireless Pcs, Llc | Wireless |
| 720-202 | Denver | Denver | Cellco Partnership Dba Verizon Wireless - CO | Wireless |
| 720-203 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-204 | Boulder | Longmont | At&t Local | Landline |
| 720-205 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-206 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-207 | Arapahoe | Englewood | Xo Colorado, Llc | Landline |
| 720-208 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-209 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-210 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-212 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-213 | Denver | Denver | Mcleodusa Telecommunications Services, Inc.- CO | Landline |
| 720-214 | Denver | Denver | Mcleodusa Telecommunications Services, Inc.- CO | Landline |
| 720-215 | Denver | Denver | Cellco Partnership Dba Verizon Wireless - CO | Landline |
| 720-216 | Adams | Aurora | Teleport Communications America, Llc - CO | Landline |
| 720-217 | Denver | Denver | T-Mobile Usa, Inc. | Wireless |
| 720-218 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-219 | Denver | Denver | Cellco Partnership Dba Verizon Wireless - CO | Wireless |
| 720-220 | Denver | Denver | T-Mobile Usa, Inc. | Wireless |
| 720-221 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-222 | Arapahoe | Englewood | Xo Colorado, Llc | Landline |
| 720-223 | Adams | Brighton | Xo Colorado, Llc | Landline |
| 720-224 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-225 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-226 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-227 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-228 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-229 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-230 | Adams | Brighton | Xo Colorado, Llc | Landline |
| 720-231 | Denver | Denver | T-Mobile Usa, Inc. | Wireless |
| 720-232 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-233 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-234 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-235 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-236 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-237 | Denver | Denver | New Cingular Wireless Pcs, Llc | Wireless |
| 720-238 | Denver | Denver | T-Mobile Usa, Inc. | Wireless |
| 720-239 | Denver | Denver | At&t Local | Landline |
| 720-240 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-241 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-242 | Denver | Denver | Qwest Corporation | Landline |
| 720-243 | Denver | Denver | New Cingular Wireless Pcs, Llc | Wireless |
| 720-244 | Denver | Denver | New Cingular Wireless Pcs, Llc | Wireless |
| 720-245 | Denver | Denver | Eschelon Telecom Of Colorado, Inc. - CO | Landline |
| 720-246 | Arapahoe | Englewood | Xo Colorado, Llc | Landline |
| 720-247 | Adams | Brighton | Xo Colorado, Llc | Landline |
| 720-248 | Denver | Denver | Cbeyond Communications, Llc - CO | Landline |
| 720-249 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-250 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-251 | Adams | Aurora | Level 3 Communications, Llc - CO | Landline |
| 720-252 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-253 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-254 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-255 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-256 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-257 | Denver | Denver | Xo Colorado, Llc | Landline |
| 720-258 | Denver | Denver | Teleport Communications America, Llc - CO | Landline |
| 720-259 | Denver | Denver | Level 3 Communications, Llc - CO | Landline |
| 720-260 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| 720-261 | Denver | Denver | T-Mobile Usa, Inc. | Wireless |
| 720-262 | Adams | Aurora | Icg Telecom Group - CO | Landline |
| 720-263 | Adams | Brighton | Level 3 Communications, Llc - CO | Landline |
| 720-264 | Denver | Denver | Qwest Corporation | Landline |
| 720-265 | Adams | Brighton | Xo Colorado, Llc | Landline |
| 720-266 | Denver | Denver | Level 3 Communications, Llc - CO | Landline |
| 720-267 | Denver | Denver | Qwest Corporation | Landline |
| 720-268 | Denver | Denver | Qwest Corporation | Landline |
| 720-269 | Denver | Denver | Teleport Communications America, Llc - CO | Landline |
| 720-270 | Denver | Denver | Sprint Spectrum L.p. | Wireless |
| Phone Number 720-386-1901 |
USAGE Landline |
City Idaho Springs |
Operate Read more about who called from 7203861901 |
Update Time Mar-26-2026 |
| Phone Number 720-233-3101 |
USAGE Wireless |
City Denver |
Operate Read more about who called from 7202333101 |
Update Time Mar-26-2026 |
| Phone Number 720-584-4671 |
USAGE Wireless |
City Denver |
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Update Time Mar-26-2026 |
| Phone Number 720-903-4814 |
USAGE Landline |
City Denver |
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Update Time Mar-26-2026 |
| Phone Number 720-456-3746 |
USAGE Landline |
City Denver |
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Update Time Mar-26-2026 |
| Phone Number 720-806-2758 |
USAGE Landline |
City Denver |
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Update Time Mar-26-2026 |
| Phone Number 720-457-5501 |
USAGE Landline |
City Denver |
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Update Time Mar-26-2026 |
| Phone Number 720-219-6709 |
USAGE Wireless |
City Denver |
Operate Read more about who called from 7202196709 |
Update Time Mar-26-2026 |
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