Get a local business phone number in South River, NJ

South River area codes

South River borough is a Census place in Middlesex County, New Jersey, with an estimated 16,392 residents in 2024. NANPA lists 30 exchanges for its rate center across 2 area codes; 732 has the most (24, 80%). 732 is part of an overlay with 848, so a new local number in South River may carry any of those codes depending on which have numbers available. South River is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 732 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number).

South River exchanges by carrier

10 carriers hold the 30 exchanges assigned to South River's rate center. Verizon New Jersey, INC. has the most, with 13. 22 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

South River phone prefixes

These are the central office codes NANPA records for South River. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 7 of the 30 were assigned in 2020 or later.

When South River's exchanges were assigned

Assignment dates show when each block of South River numbers was added to the local supply.

What makes a number local to South River

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. South River's numbers are rated to the SOUTHRIVER rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a South River number.

New local numbers are drawn from carrier inventory, so the exact 732 numbers available change over time; porting an existing number is free.

Businesses around South River

South River is part of the New York-Newark-Jersey City, NY-NJ metro area, home to 19.9 million people in 2024. County Business Patterns counted 562,802 business establishments in the New York, NY-NJ metro area in 2023, employing 8,559,248 people. The largest sectors by establishment count are professional, scientific, and technical services (71,000), retail trade (70,682), and health care and social assistance (65,817).

A South River number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

If you already have a number in South River, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

The comparison below uses 15 users, the rounded average establishment size in the New York, NY-NJ metro area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.