Area codes 713, 281, 832, 346, and 621
area codes in Houston, Texas
Area codes 713, 281, 832, 346, and 621 are telephone area code in the North American Numbering Plan (NANP) forming an overlay complex for Houston, Texas, and its environs. Area code 713 is one of the original four area codes established for Texas in 1947.
History
When the concept of the North American Numbering Plan was established in 1947, Texas was divided into four numbering plan areas (NPAs), roughly outlining four quadrants in the state. Area code 713 was assigned to the southeastern part, from the Sabine River to the Brazos Valley.
Despite the Houston area's growth, this configuration remained for 36 years. On March 19, 1983, the numbering plan area was divided for the first time. The northern, eastern and western portions received the new area code 409, as 713 was reduced to the immediate Houston area.
On November 2, 1996, 713 was split again. Area code 281 was created for most of Houston's suburbs along a dividing line roughly following Beltway 8. Generally, most of Houston and most of the suburbs inside the beltway kept 713, while 281 served the area outside the beltway.
The public source identifies “Area codes 713, 281, 832, 346, and 621” as area codes in Houston, Texas. This brief keeps that definition visible, then builds a research path around Area, codes and area.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Area codes 713, 281, 832, 346, and 621”, the useful work is to connect “area codes in Houston, Texas” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Feb 27, 2026. The linked authority identifier is Q767697. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1947, 1983 and 1996.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Area codes 713, 281, 832, 346, and 621”, its source revision and the description used here.
- Expand the search: follow Area codes 713, 281, 832, 346, and 621 primary sources, Area codes 713, 281, 832, 346, and 621 archive and Area research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Area codes 713, 281, 832, 346, and 621”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Area codes 713, 281, 832, 346, and 621” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.