WhoCalledLookupUS

610 Area Code: Philadelphia suburbs, Pennsylvania

Area code 610 serves Philadelphia suburbs, Allentown and Reading, Pennsylvania in the Eastern time zone, in service since 1994. Consumers have filed 6,458 unwanted-call complaints against 5,615 different 610 numbers, 719 of them with the FTC in the last 30 days. Look up the exact number that called you below.

Area code 610 at a glance

Main cities
Philadelphia suburbs, Allentown, Reading, Bethlehem, West Chester + 69 more
Counties
Philadelphia County, Berks County, Chester County, Lehigh County + 5 more
Local time
—Eastern
In service since
January 8, 1994
Split from
215
Overlay codes
484 (1999), 835 (2022)
Local dialing
10 digits (area code + number)
Exchanges
90 rate centers, 782 prefixes

Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.

Map of Pennsylvania with the 9 counties served by area code 610 shaded, and Philadelphia suburbs, Allentown and Reading marked
Shaded: counties with exchanges in area code 610. Dots: the largest exchanges. Coverage is approximate: area codes follow exchange boundaries, not county lines. Built from NANPA prefix assignments and US Census Bureau boundaries.
5,615
Reported numbers
2,945
FTC DNC reports
3,513
FCC complaints
719
Last 30 days (FTC)

Most-reported 610 numbers

Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.

What calls from 610 numbers are about

2,945 FTC Do Not Call complaints about 610 numbers since Jul 24. The most common named subject is debt-relief pitches, at 8% of complaints (85% of those were recorded messages). Overall, 65% of callers who answered said the call was a robocall.

FTC complaint subjects

  • Other / unspecified1,65656%
  • Dropped call / no message2629%
  • Debt reduction2308%
  • Medical & prescriptions2228%
  • Impostor (government, business, family)2097%
  • No subject given2047%
  • Home improvement & cleaning652%

FCC complaints by call type, last 2 years

  • Prerecorded Voice23564%
  • Live Voice10529%
  • Text Message267%

Live-voice calls are from a person; prerecorded calls are robocalls.

When 610 spam calls come in

33% of complaints that give a call time describe calls between 10am and 1pm. 95% came Monday to Friday, most on Tuesdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.

By hour of the day

By day of the week

Is it getting worse?

813 FTC complaints about 610 numbers in the last four weeks; leaving out the concentrated source below, complaints are down 16% on the four weeks before. FCC complaints about 610 numbers peaked in 2017 (599); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.

Data note: 123 of the last four weeks' 610 complaints (15%) came from one place, Emmaus, PA (callers' own phones in area code 610), about 16× the state's per-resident rate. That pattern usually means one or a few very active filers, so trend figures here leave it out.

FTC complaints per week

FCC complaints per year

Years shown as '15 to '26; the current year is partial.

Who gets these calls

76% of the FTC complaints about 610 numbers came from people whose own phone number also starts with 610, and 83% from Pennsylvania. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.

These shares include Emmaus, PA, flagged under “Is it getting worse?” as an unusually concentrated source.

Where complainants live

  • Pennsylvania2,43583%
  • California642%
  • Florida441%
  • Ohio261%
  • Delaware251%

What people with 610 numbers report

People whose own number starts with 610 filed 4,598 FTC complaints since Jul 24. 49% were about calls showing another 610 number. The most common named subject was debt-relief pitches.

Area codes on the calls they reported

  • 610 (same code)2,23849%
  • 833 (toll-free)1343%
  • 4841122%
  • 267972%
  • 888 (toll-free)812%

Likely campaigns using 610 numbers

Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.

Busiest 610 prefixes this month

FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.

PrefixComplaintsNumbers
(610) 610-xxxxcampaign2322
(610) 817-xxxx1919
(610) 426-xxxx1515
(610) 618-xxxxcampaign1514
(610) 813-xxxx1313

Carriers operating in 610

NANPA has assigned 782 610 prefixes (NPA-NXX central-office codes) across 90 rate centers: 21% to wireless carriers, 78% to landline and VoIP operators; 55% are pooled blocks shared by several carriers. 1 prefix was assigned in the last 12 months (newest 2026-02-17). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.

CarrierTypePrefixes
Verizon (landline)Incumbent landline (ILEC)322(41%)
AT&T Mobility (New Cingular Wireless PCS)Wireless56(7%)
Verizon Wireless (Cellco Partnership)Wireless43(5%)
MCImetro (Verizon Business)Competitive / VoIP (CLEC)39(5%)
Teleport Communications America, LLCCompetitive / VoIP (CLEC)38(5%)
Level 3 (Lumen)Competitive / VoIP (CLEC)36(5%)
MCImetro (Verizon Business)Competitive / VoIP (CLEC)35(4%)
Omnipoint Communications Enterprises, LPWireless29(4%)
Service Electric Telephone Company, LLCIncumbent landline (ILEC)21(3%)
PAETEC (Windstream)Competitive / VoIP (CLEC)20(3%)
Spok, INC.Wireless19(2%)
WindstreamIncumbent landline (ILEC)16(2%)

Largest rate centers (exchanges) by prefixes: Philadelphia suburbs (221), Allentown (71), Reading (58), Bethlehem (32), West Chester (23). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).

What to do about calls from 610 numbers

Before you call back

  • Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
  • Look up the full number above. A missed call from 610 with no voicemail is usually a robocall; anyone who needs you will leave a message.
  • If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
  • Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).

Report it in Pennsylvania

  • Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
  • Spoofing, texts and call-blocking problems: FCC consumer complaints.
  • State complaints: Pennsylvania Attorney General.
  • Pennsylvania is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Pennsylvania numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.

Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.

Area code 610: questions answered from the data

Where is area code 610?

Area code 610 serves Philadelphia suburbs, Allentown and Reading, Pennsylvania, covering Philadelphia County, Berks County and Chester County and 6 more counties. It has been in service since January 8, 1994. It was split from area code 215.

What time zone is area code 610 in?

Area code 610 is in the Eastern time zone (UTC−5, or UTC−4 during daylight saving time). The current local time is shown at the top of this page.

Which area codes overlay 610?

484 (in service 1999) and 835 (in service 2022) serve the same area as 610. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.

What are calls from 610 numbers usually about?

Since Jul 24, consumers filed 2,945 FTC Do Not Call complaints about 610 numbers. The most common named subject was debt-relief pitches: 8% of complaints, 85% of them recorded messages. Across all subjects, 65% of callers who answered the question said the call was a robocall.

When do 610 spam calls happen?

33% of the complaints that give a call time describe calls between 10am and 1pm, and 95% came on weekdays, most often on Tuesday. Times are as consumers reported them.

Are calls from 610 numbers really local?

Not necessarily. 76% of the FTC complaints about 610 numbers came from people whose own phone number also starts with 610, and 83% from Pennsylvania. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.

Are 610 robocalls increasing?

In the four weeks to Oct 15, consumers filed 813 FTC complaints about 610 numbers. Leaving out one town that filed an unusual share of them, that is 16% fewer than the four weeks before.

How do I report a 610 scam call in Pennsylvania?

Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Pennsylvania, the Pennsylvania Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.

Overlay and nearby area codes

Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.