Lesson plan

Area code 712

Area code 712 is the telephone area code in the North American Numbering Plan (NANP) for the most western part of Iowa, including the cities of Spencer, Le Mars, Sioux City, Council Bluffs, Red Oak, Sheldon, Storm Lake, Carroll, Sac City, Logan, and Shenandoah. Area code 712 was one of the original three area codes for the state of Iowa established in 1947. It is the only original area code in Iowa that still has its original boundaries, and one of the few remaining original area codes nationwide (not counting those covering an entire state) that has never been split or overlaid. Despite the proliferation of cell phones and pagers (particularly in Sioux City and Council Bluffs), it is projected to stay that way until at least 2031.

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Article summary

Area code 712 is the telephone area code in the North American Numbering Plan (NANP) for the most western part of Iowa, including the cities of Spencer, Le Mars, Sioux City, Council Bluffs, Red Oak, Sheldon, Storm Lake, Carroll, Sac City, Logan, and Shenandoah. Area code 712 was one of the original three area codes for the state of Iowa established in 1947. It is the only original area code in Iowa that still has its original boundaries, and one of the few remaining original area codes nationwide (not counting those covering an entire state) that has never been split or overlaid. Despite the proliferation of cell phones and pagers (particularly in Sioux City and Council Bluffs), it is projected to stay that way until at least 2031.

Key claims

  1. date of establishment: 1947 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the date of establishment is "1947". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1340715671

Key claims and bibliography are generated from the same tracked claims and sources as the article page.