District of Columbia area codes
District of Columbia uses 2 area codes. The oldest is 202, in service since 1947; the newest is 771, from 2021. Across them 856 of 1,572 possible number blocks are allocated, 54.5% of capacity. 202 is at or past 95%, which is why new numbers there come from overlays rather than the original code. Verizon holds 54.0% of the 856 assigned blocks across the district, ahead of T-Mobile at 12.0%; a further 4.3% sits with CLEC and VoIP holders outside the national carriers. In the 33 days to 30 October 2026, FTC complaints named a District of Columbia caller ID 1,819 times – 0.8% of all complaints in the window, most often 202 with 1,377 (10th of 422 nationally). NANPA records 2 rate centers across the district's codes, and local calls take all ten digits.
All 2 codes
| Code | In service | Blocks used | Largest holder | Complaints | Shares area with |
|---|---|---|---|---|---|
| 202 | 1947 | 784/786 | Verizon 57.1% | 1,377 | 771 |
| 771 | 2021 | 72/786 | AT&T 20.8% | 442 | 202 |
Block share is share of allocated number blocks, not of subscribers. Complaint counts cover 28 Sep – 30 Oct 2026 and reflect spoofed caller IDs as much as real calls.
How full District of Columbia’s codes are
A code holds at most 786 blocks of 10,000 numbers each. When a code fills up, the administrator does not reclaim numbers – it adds an overlay, and from then on new numbers in the same area come from the new code.
Full or nearly full
Most room left
Who holds the number blocks
Counted from every assigned block in the district: 856 blocks, each with the holder NANPA recorded for it. Percentages are measured, not estimated.
| Holder | Blocks | Share of District of Columbia | Largest in |
|---|---|---|---|
| Verizon | 462 | 54% | 1 code |
| T-Mobile | 103 | 12% | – |
| AT&T | 83 | 9.7% | 1 code |
| Onvoy | 47 | 5.5% | – |
| Other CLEC / VoIP | 37 | 4.3% | – |
| Bandwidth | 36 | 4.2% | – |
| Lumen | 32 | 3.7% | – |
| Windstream | 19 | 2.2% | – |
| Spok | 14 | 1.6% | – |
| Charter | 6 | 0.7% | – |
| Peerless | 4 | 0.5% | – |
| Vonage | 3 | 0.4% | – |
“Other CLEC / VoIP” is not one company: it is every holder outside the national carriers counted together, which is what resellers and app-based numbers look like in the records. This is allocation, not subscribers.
Spam complaints naming District of Columbia codes
FTC Do Not Call complaints where the caller ID shown was a District of Columbia number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are routinely faked, so these are complaints about the code, not calls proven to come from it.
How District of Columbia got its codes
1 in the 1940s, 1 in the 2020s. Each code after the first was split off from or overlaid on one already in service.
- 1947 202 goes into service.
- 2021 771 goes into service, split from or overlaid on 202.
Time zones
District of Columbia is in Eastern time.
Frequently asked about District of Columbia area codes
How many area codes does District of Columbia have?
2 in service. They are 202 and 771.
What is the oldest area code in District of Columbia?
202, in service since 1947. Every later code in the district was split off from or overlaid on an existing one.
What is the newest area code in District of Columbia?
771, from 2021, overlaying 202.
Is District of Columbia running out of numbers?
202 is at or past 95% of capacity, but NANPA has not opened relief planning for it, so no new code is announced.
What time zone is District of Columbia in?
Eastern time.
Which District of Columbia area code gets the most spam complaints?
202 – 1,377 FTC complaints in the 33 days to 30 October 2026, 10th of 422 codes nationally. Those are complaints about the caller ID shown, and spam callers routinely fake a local-looking number, so this says the code is imitated often, not that the calls come from there.
Which carrier holds the most District of Columbia numbers?
Verizon, with 54.0% of the 856 blocks assigned across District of Columbia, ahead of T-Mobile at 12.0%. This is allocation of blocks by the numbering administrator, not a count of subscribers – people keep their numbers when they switch carriers.
Do you have to dial 10 digits in District of Columbia?
Yes. Every code in the district is in an overlay or ten-digit dialing area, so a local call needs the area code too. Dialing seven digits reaches a recording, not a wrong number.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
Figures on this page are counted from those files, not copied from other sites. Spotted an error? Request a correction. How we collect and check: methodology.