Area Code 223
Pennsylvania
Area code 223 serves Pennsylvania, primarily Lancaster, in the Eastern Time (ET) time zone. It is an overlay area code sharing territory with area code 717.
Overlay Area Code
This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.
This area code shares its geographic region with: area code 717 (Lancaster).
In service since: 26-Sep-2017
Demographics & Economics
- Total Population
- 2,939,404
- Population Density
- 2,438 people/sq miabove U.S. average (U.S.: 93 people/sq mi)
- Median Household Income
- $60,698below U.S. median (U.S.: $75,144)
- Poverty Rate
- 14.8%above U.S. average (U.S.: 11.5%)
- Unemployment Rate
- 6.6%above U.S. average (U.S.: 3.6%)
- Education Attainment
- Bachelor's Degree+40.2%above U.S. average (U.S.: 33.7%)High School or Lower31.3%
Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.
See how this area code compares to all US area codes in the Statistics dashboard.
Time Zone
- Eastern Time (ET)
NANPA Relief Status
According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.
Source: NANPA NPA Relief Planning Reports · See all relief planning statuses
Current Time
Prefix Utilization
Geographic Coverage
State
PA
Major Cities
- Lancaster
- Harrisburg
- York
- Lebanon
- Chambersburg
- Carlisle
- Colonial Park
- Hanover
- Weigelstown
- Hershey
- Ephrata
- Elizabethtown
- Progress
- Waynesboro
- Shiloh
- Columbia
- Willow Street
- Lititz
- Middletown
- Mechanicsburg
- East York
- Millersville
- Lewistown
- Parkville
and 270 more cities
Historical Timeline of Area Code 223
Area code 223 was activated September 26, 2017 as an overlay for area code 717, one of Pennsylvania's original four area codes from 1947. After two dismissed overlay attempts spanning 15 years, the third petition was approved on October 27, 2016 with a unanimous 5-0 vote by the Pennsylvania PUC. Mandatory 10-digit dialing began August 26, 2017. Source: NANPA PL-501
Key milestones:
- 1947: 717 created as one of Pennsylvania's original four area codes (215, 412, 717, 814) covering the eastern half of the state. Source: Wikipedia
- 1996: June 28: Industry asked the PA PUC to address 717 exhaust due to cell phone, pager, and fax proliferation. Source: Pennsylvania Bulletin
- 1998: December 5: Geographic split creating area code 570. The northern and northeastern portion (Scranton, Wilkes-Barre, Williamsport) received 570; 717 retained the southern portion including Harrisburg, Lancaster, and York. Source: NANPA PL-136
- 2001: April 18: Industry reached consensus for an all-services distributed overlay. The plan was filed with the PA PUC but subsequently dismissed in 2003 after number conservation measures extended the exhaust date. Source: Pennsylvania Bulletin
- 2009: September 10: Industry again reached consensus for an overlay. The plan was dismissed around 2011 after revised FCC projections pushed the exhaust date out approximately 5 years. Source: Pennsylvania Bulletin
- 2015: October 23: Neustar filed a petition (Docket P-2015-2510230) requesting an all-services distributed overlay for the 717 NPA. Source: PA PUC Docket
- 2016: October 27: The PA PUC voted 5-0 to approve the overlay. November 9: NANPA announced 223 as the overlay number. Source: PA PUC
- 2017: March 4: Permissive 10-digit dialing began. August 26: Mandatory 10-digit dialing effective. September 26: Area code 223 activated and entered service. Source: PA PUC
The 717 area code remained largely unchanged for 51 years before the 1998 split, one of the longest periods for any numbering plan area on the Eastern Seaboard. The subsequent regulatory journey to implement the 223 overlay, with two dismissed attempts, reflects the ongoing balance between number conservation and growing demand for telephone numbers driven by mobile devices.
Regulatory History
Area code 223's regulatory history spans three Pennsylvania PUC dockets from 1996 to 2018, reflecting a prolonged effort to manage numbering resources in the 717 region. The first docket resulted in a geographic split creating area code 570. A 2009 overlay attempt was dismissed after revised projections. The successful 2015 petition was approved unanimously in October 2016, with implementation accelerated after jeopardy was declared. Source: PA PUC Docket
| Year | Event | Docket | Regulatory Action & Impact |
|---|---|---|---|
| 1998 | Geographic split creating 570 | P-00961071 | PA PUC approved the split effective December 5, 1998. Northern/northeastern portion received 570; 304 NXX codes moved, 371 remained in 717. Source: NANPA PL-136 |
| 2009 | Overlay petition dismissed | P-2009-2136951 | Industry reached consensus for overlay in September 2009. PUC sought comments and held hearings. Plan dismissed around 2011 after revised FCC projections pushed the exhaust date out approximately 5 years. Source: Pennsylvania Bulletin |
| 2016 | Overlay approved; 223 assigned | P-2015-2510230 | PA PUC voted 5-0 to approve the all-services distributed overlay on October 27, 2016. NANPA assigned 223 on November 9. Jeopardy declared; implementation accelerated from 13 to approximately 9 months. Source: PA PUC |
County Coverage
Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 223).
| County | Population | Share |
|---|---|---|
| York, PA | 569,817 | 22.1% |
| Lancaster, PA | 561,300 | 21.8% |
| Dauphin, PA | 350,510 | 13.6% |
| Cumberland, PA | 317,254 | 12.3% |
| Lebanon, PA | 189,821 | 7.4% |
| Adams, PA | 184,642 | 7.2% |
| Franklin, PA | 179,992 | 7.0% |
| Perry, PA | 50,344 | 2.0% |
| Mifflin, PA | 46,482 | 1.8% |
| Berks, PA | 41,346 | 1.6% |
| Juniata, PA | 30,064 | 1.2% |
| Fulton, PA | 22,563 | 0.9% |
| Snyder, PA | 14,069 | 0.5% |
| Chester, PA | 13,173 | 0.5% |
| Schuylkill, PA | 4,299 | 0.2% |
| Huntingdon, PA | 1,008 | 0.0% |
Area Code 223 Family Tree
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Area code 223 was originally assigned in 26-Sep-2017 to serve PA.
Call Context
This area code covers a metropolitan region in PA with moderate to high population density, centered on Lancaster and surrounding communities.
Nearby Area Codes
Area codes geographically closest to 223.
Other Area Codes in Pennsylvania
Area codes that also serve Pennsylvania, linked for easy comparison.