Area code 551 calling hours: can you call now?

Area code 551 serves Jersey City, Hackensack, and Bayonne in New Jersey. It is on Eastern time. Clocks move for daylight saving time in March and November.

Debt collection: federal — Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. New Jersey: no separate hour rule.
Telemarketing: federal — 8 a.m.-9 p.m. local time at the called party's location, any day. New Jersey: No unsolicited sales calls between 9 p.m. and 8 a.m. local time, any day.

Live check: area code 551

Turn on JavaScript for the live check. The rules table below lists every window that applies to 551.

Not checked here: consent, Do-Not-Call lists, Reg F call frequency (7 calls in 7 days), cease-communication requests or attorney representation, reassigned numbers, and whether the consumer has told you a time is inconvenient.

Calling-hour rules for 551

Hours are local time at the person you are calling. When federal and New Jersey rules differ, the narrower window governs; the live check applies every row at once.

Rule set	Debt collection	Telemarketing
Federal	Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. Every day 8:00 a.m.–9:00 p.m. 15 U.S.C. § 1692c(a)(1) · 12 CFR § 1006.6(b)(1)(i) (Regulation F) · Reg F Official Interpretation, comment 6(b)(1)(i)-2 (consumer's location) · 12 CFR § 1006.14(b)(2) Call-frequency presumption: a collector is presumed to comply with the harassment ban if it places no more than 7 calls to a person about a particular debt within 7 consecutive days, and no call within 7 days after a telephone conversation with that person about the debt; exceeding either is presumed a violation (12 CFR § 1006.14(b)(2)). Conflicting location information: if the collector's information indicates the consumer may be in more than one place (e.g. an Eastern-zone area code and a Pacific-zone address), it complies only by calling at a time convenient in all of those locations (Reg F comment 6(b)(1)(i)-2). A collector may not call at any time it knows or should know is inconvenient to the consumer (e.g. after the consumer says so), regardless of the 8 a.m.-9 p.m. default (15 U.S.C. § 1692c(a)(1); Reg F comment 6(b)(1)-1). No federal Sunday or holiday ban, but a consumer's statement that a day or time is inconvenient makes calls then unlawful. The 8-9 window is a default presumption that the consumer's prior consent (given directly to the collector) or a court can override.	8 a.m.-9 p.m. local time at the called party's location, any day. Every day 8:00 a.m.–9:00 p.m. 47 CFR § 64.1200(c)(1) (TCPA rules) · 16 CFR § 310.4(c) (Telemarketing Sales Rule) No telephone solicitation to a number on the National Do Not Call Registry absent an established business relationship or the consumer's signed written permission (47 CFR § 64.1200(c)(2); 16 CFR § 310.4(b)(1)(iii)(B)). Autodialed or artificial/prerecorded-voice telemarketing calls to wireless numbers, and prerecorded telemarketing calls to residential lines, require the called party's prior express written consent (47 CFR § 64.1200(a)(2)-(3)). Sellers must honor company-specific do-not-call requests (47 CFR § 64.1200(d); 16 CFR § 310.4(b)(1)(iii)(A)). TSR § 310.4(c) allows calls outside 8-9 with the person's prior consent; the TCPA time rule in § 64.1200(c)(1) has no consent exception for telephone solicitations as defined.
New Jersey	No separate state hours; the federal window applies.	No unsolicited sales calls between 9 p.m. and 8 a.m. local time, any day. Every day 8:00 a.m.–9:00 p.m. N.J.S.A. 56:8-128 (NJ Division of Consumer Affairs statute compilation) · S1030 (2026) showing current text of N.J.S.A. 56:8-128(d) · N.J.A.C. 13:45D Telemarketers must state their name, the seller, and the call's purpose within the first 30 seconds; since Dec. 1, 2023 failure is a disorderly persons offense (N.J.S.A. 56:8-128). Telemarketers must register with the Division of Consumer Affairs and may not call numbers on the No Telemarketing Call list (N.J.S.A. 56:8-121 et seq.; N.J.A.C. 13:45D). Blocking or spoofing caller ID is prohibited (N.J.S.A. 56:8-128).

Debt collection

Telemarketing

Federal

Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day.

Every day 8:00 a.m.–9:00 p.m.

15 U.S.C. § 1692c(a)(1) · 12 CFR § 1006.6(b)(1)(i) (Regulation F) · Reg F Official Interpretation, comment 6(b)(1)(i)-2 (consumer's location) · 12 CFR § 1006.14(b)(2)

Call-frequency presumption: a collector is presumed to comply with the harassment ban if it places no more than 7 calls to a person about a particular debt within 7 consecutive days, and no call within 7 days after a telephone conversation with that person about the debt; exceeding either is presumed a violation (12 CFR § 1006.14(b)(2)).
Conflicting location information: if the collector's information indicates the consumer may be in more than one place (e.g. an Eastern-zone area code and a Pacific-zone address), it complies only by calling at a time convenient in all of those locations (Reg F comment 6(b)(1)(i)-2).
A collector may not call at any time it knows or should know is inconvenient to the consumer (e.g. after the consumer says so), regardless of the 8 a.m.-9 p.m. default (15 U.S.C. § 1692c(a)(1); Reg F comment 6(b)(1)-1).

No federal Sunday or holiday ban, but a consumer's statement that a day or time is inconvenient makes calls then unlawful. The 8-9 window is a default presumption that the consumer's prior consent (given directly to the collector) or a court can override.

8 a.m.-9 p.m. local time at the called party's location, any day.

Every day 8:00 a.m.–9:00 p.m.

47 CFR § 64.1200(c)(1) (TCPA rules) · 16 CFR § 310.4(c) (Telemarketing Sales Rule)

No telephone solicitation to a number on the National Do Not Call Registry absent an established business relationship or the consumer's signed written permission (47 CFR § 64.1200(c)(2); 16 CFR § 310.4(b)(1)(iii)(B)).
Autodialed or artificial/prerecorded-voice telemarketing calls to wireless numbers, and prerecorded telemarketing calls to residential lines, require the called party's prior express written consent (47 CFR § 64.1200(a)(2)-(3)).
Sellers must honor company-specific do-not-call requests (47 CFR § 64.1200(d); 16 CFR § 310.4(b)(1)(iii)(A)).

TSR § 310.4(c) allows calls outside 8-9 with the person's prior consent; the TCPA time rule in § 64.1200(c)(1) has no consent exception for telephone solicitations as defined.

New Jersey

No separate state hours; the federal window applies.

No unsolicited sales calls between 9 p.m. and 8 a.m. local time, any day.

Every day 8:00 a.m.–9:00 p.m.

N.J.S.A. 56:8-128 (NJ Division of Consumer Affairs statute compilation) · S1030 (2026) showing current text of N.J.S.A. 56:8-128(d) · N.J.A.C. 13:45D

Telemarketers must state their name, the seller, and the call's purpose within the first 30 seconds; since Dec. 1, 2023 failure is a disorderly persons offense (N.J.S.A. 56:8-128).
Telemarketers must register with the Division of Consumer Affairs and may not call numbers on the No Telemarketing Call list (N.J.S.A. 56:8-121 et seq.; N.J.A.C. 13:45D).
Blocking or spoofing caller ID is prohibited (N.J.S.A. 56:8-128).

Exchanges and time zones

Every assigned exchange in 551 sits in Eastern time, so the area code alone settles the zone for a landline. Rate centers by exchange count:

Rate center	Exchanges
Jersey City, NJ	53
Hackensack, NJ	44
Bayonne, NJ	31
Union City, NJ	23
Ramsey, NJ	20
Fair Lawn, NJ	17
Cliffside, NJ	14
Kearny, NJ	11
Ridgewood, NJ	10
Closter, NJ	8
Rutherford, NJ	8
Leonia, NJ	6
Westwood, NJ	6
Wyckoff, NJ	6
Dumont, NJ	5
Englewood, NJ	5
Oakland, NJ	5
Park Ridge, NJ	5
Cragmere, NJ	4
Hasbrouck Heights, NJ	4
Oradell, NJ	4
Teaneck, NJ	4
Unspecified rate center, NJ	1

Overlay codes — same territory as 551, same rules: 201

Other area codes in New Jersey:

609 Atlantic City
640 Atlantic City
732 New Brunswick
848 New Brunswick
856 Camden
862 Newark
908 Elizabeth
973 Newark

Why area code alone is not enough

Mobile numbers travel with their owners, and a ported number keeps its original 551 area code and exchange. A 551 number tells you where the line was assigned, not where the person is today.
Under Regulation F, when you know of more than one location for a consumer — a mailing address in one zone, an area code in another — the time must be convenient in every one of them. Use the address-state field above to add the zones you know about.
Call only when the window is open in every location you know about, and stop calling at times the consumer tells you are inconvenient, whatever the clock says.

Questions

What time can you call area code 551?

Area code 551 is in New Jersey, on Eastern time. Debt collection: federal — Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. New Jersey: no separate hour rule. Telemarketing: federal — 8 a.m.-9 p.m. local time at the called party's location, any day. New Jersey: No unsolicited sales calls between 9 p.m. and 8 a.m. local time, any day.

What time zone is area code 551?

Area code 551 is entirely in Eastern time. Clocks move for daylight saving time in March and November.

Can a debt collector call a 551 number on Sunday?

Neither federal law nor New Jersey sets separate Sunday hours for debt collection; the 8 a.m.–9 p.m. local-time window applies, and a consumer can tell a collector that Sunday is inconvenient.

Is the 551 area code enough to know the person's local time?

No. Mobile numbers move with their owners and ported numbers keep their area code, so a 551 number may belong to someone in another time zone. If you know other locations for the person, the call should fit the window in all of them.

Sources

This page is general information, not legal advice. Laws change and some rules depend on who is calling and why; confirm with counsel. Rules last reviewed 2026-10-07.

Area code 551 calling hours: can you call now?

Live check: area code 551

Calling-hour rules for 551

Exchanges and time zones

Related area codes

Why area code alone is not enough

Questions

What time can you call area code 551?

What time zone is area code 551?

Can a debt collector call a 551 number on Sunday?

Is the 551 area code enough to know the person's local time?

Sources

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