262
Area code

WI

United States geographic area code, in service since 1999-09-25.

Split from 414.

Statusin service
Introduced1999-09-25
JurisdictionWI, US
Local dialing10D
Time zoneCentral
Last verified2026-09-17
Utilization 81.8% of assignable prefixes assigned As of 09/17/2026
0%648 of ~792 assignable NXX values (200–999 excl. N11)100%

Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-01-17, most recent 2026-09-03.

Area codes serve rate-center geographies, not municipal boundaries. “WI” identifies the jurisdiction, not an exact city footprint.

Top assignees

Ranked by assigned prefixes · initial assignee ≠ current carrier
Largest initial assignees in area code 262
RankAssigneePrefixesShare
01 WISCONSIN BELL INC 142 21.9%
02 TELEPORT COMMUNICATIONS AMERICA, LLC WI 53 8.2%
03 NEW CINGULAR WIRELESS PCS, LLC - IL 47 7.3%
04 T-MOBILE USA, INC. 42 6.5%
05 ONVOY, LLC - WI 39 6%
06 LEVEL 3 COMMUNICATIONS, LLC - WI 37 5.7%
07 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 36 5.6%
08 UNITED STATES CELLULAR - WI 28 4.3%
09 PAETEC ITEL, LLC 24 3.7%
10 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 16 2.5%

Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.

Change history

Recorded events for this NPA
  • 1999-09-25Area code 262 entered service (created from 414).

Planning letters & orders

Primary documents
NANPA planning letters for area code 262
DateDocumentSubject
2021-01-08 PL-556 ↗ Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Lifeline) – supersedes PL-544
2020-08-17 PL-544 ↗ Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline
1999-05-06 PL-174 ↗ Geographic Split of 414 (Wisconsin) Numbering Plan Area (NPA); addition of 262 NPA

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