
Spam Risk Caller ID: What It Means and What to Do About It
What "Spam Risk" means on your caller ID and how carriers flag calls.
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Based on US Census data for Pittsburgh
33.5 y/o
Median Age
Compared to the US median age of 38.7 y/o
$64.1K
Median Income
Compared to the US median income of $78.5K
$193.2K
Median Home Value
Compared to the US median home value of $303.4K
303.6K
Pittsburgh Population
Compared to the US median city population of 171.9K
Pennsylvania's 878 area code is an overlay sharing geography with the long-running 412 and 724 across western Pennsylvania. Pittsburgh anchors the directory's records here. The city sits at the confluence of the Allegheny and Monongahela rivers, organized around a downtown core, a substantial healthcare and biomedical sector centered on the University of Pittsburgh Medical Center, and a growing technology cluster built around Carnegie Mellon's research base. The 878 designation, part of the North American Numbering Plan, is in the early phases of being filled with active number assignments and shares its broader footprint with the 412/724 region.
In records the directory has compiled for 878 numbers, other Pennsylvania cities — Allentown, Erie, Harrisburg, and Lancaster — appear regularly. None of those are inside the 878 footprint. The pattern reflects standard public-record dynamics across Pennsylvania. The directory currently documents 13 distinct prefixes within 878 in detail, an early-stage subset that should be read as the start of working coverage rather than a comprehensive count.
Pittsburgh's home values come in below the US median, with median household income running below the national figure. The city's median age sits well under the US reading, in the low thirties, shaped in part by the substantial student population at the surrounding universities. Population places Pittsburgh among the larger cities in Pennsylvania. The 878 footprint shares those demographics with 412 because both codes serve western Pennsylvania in overlapping form, and the broader region's economic profile reflects healthcare, technology, and a long industrial transition.

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