John D. Coryat - President of USNaviguide LLC.

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John Coryat and USNaviguide LLC has been a provider of quality custom software services to customers the world over for more than 18 years. We provide a broad range of custom programming and design services from custom and standardized polygon databases to web sites and hosting services. This page lists some of the significant accomplishments for John Coryat Systems: Significant Accomplishments of John Coryat Systems

USNaviguide LLC currently is specializing in cartographic web site programming, utilizing Perl, SQL and Apache on Linux based platforms.
Our latest product offering:

Mapping programs:

New! Telephone Area Code (NPA) Boundary Map

USPS Zip Code Boundary Map

2006FE ZCTA Zip Code Boundary Map - Overlay Map Based

2000 ZCTA Zip Code Boundary Map - Line Based

New! Australian Post Code Boundary Map

2000 ZCTA Zip Code Boundary Map - Merges Zip Codes into one Boundary

3 Digit Zip Code Boundary Map

Town/City Boundary Map

County Boundary Map

Core Based Statistical Area (FIPSCSA) Boundary Map

All these maps work essentially the same. Either click on a point inside the US or key a zip code and the program will draw the border for the $ Some points will result in no border being drawn due to the point being outside of the polygons in our database.

USPS Zip+4 Based Reverse Geocoder: Translate a latitude and longitude coordinate into an address.

Tiger/Line 2006FE Based Reverse Geocoder: Translate a latitude and longitude coordinate into $

Geocoder: Translate an address into latitude and longitude coordinates.

Generate revenue from your website. Google AdSense.

Site Links:

Maps.Huge.Info

USNaviguide LLC

Examples Page

Sales Information for our site


Other Interesting and Useful stuff:
PostgreSQL Statements of Interest
Payment Calculator and Amortization Program

Author: John D. Coryat  
Last update: 08/30/2006
Boundary Maps with Google Maps API

TIZY - Free Multiple Choice Word Game

TIZY PLANES - Free Multiple Choice Aircraft Identification Game

Judy, The Cute Dog (and Friends)

Introduction to Corporations

RoHS and WEEE Compliance

This site can also be reached at: www.coryat.us

Copyright © 1996-2005 John Coryat Systems All rights reserved.