Caller ID @ caller-id.co



phone image Caller-ID.co is the internet's first free caller ID service. If somebody called you and you're trying to find out who owns the number, you've come to the right place. You can immediately search our up-to-date database. Simply enter the number that called you, and we provide the name ("caller identification") registered to the phone number. Our service works for the entire United States and Canada, and we are adding more countries soon. Our caller identification is 100% reliable information directly received from our telephone company partner.

Caller ID Coverage for these phone prefixes:


939-201 SAN JUAN PR
939-202 PR
939-203 BAYAMON PR
939-205 PR
939-207 PR
939-208 CAGUAS PR
939-211 PR
939-212 SAN JUAN PR
939-214 SAN JUAN PR
939-216 PR
939-217 PR
939-218 PR
939-225 PR
939-228 PR
939-232 PR
939-240 PR
939-241 BAYAMON PR
939-242 PR
939-243 BAYAMON PR
939-244 PR
939-245 PR
939-246 PR
939-247 PR
939-248 PR
939-249 PR
939-250 PR
939-251 PR
939-252 PR
939-253 PR
939-254 PR
939-255 PR
939-256 PR
939-257 PR
939-258 PR
939-259 PR
939-260 PR
939-261 PR
939-262 PR
939-263 PR
939-264 PR
939-265 PR
939-266 PR
939-267 PR
939-268 PR
939-269 PR
939-270 PR
939-271 PR
939-272 PR
939-273 PR
939-274 BAYAMON PR
939-275 BAYAMON PR
939-276 BAYAMON PR
939-277 PR
939-278 BAYAMON PR
939-279 PR
939-280 PR
939-281 PR
939-282 PR
939-283 PR
939-284 PR
939-285 PR
939-286 PR
939-287 PR
939-288 PR
939-289 PR
939-290 PR
939-292 PR
939-307 SAN JUAN PR
939-308 PR
939-309 PR
939-311 PR
939-322 PR
939-325 PR
939-329 SAN JUAN PR
939-332 PR
939-334 PR
939-339 PR
939-350 PR
939-358 PR
939-388 PR
939-389 PR
939-394 SAN JUAN PR
939-397 PR
939-400 PR
939-401 PR
939-402 PR
939-403 PR
939-404 PR
939-405 PR
939-406 PR
939-407 PR
939-408 PR
939-409 PR
939-410 PR
939-411 PR
939-412 PR
939-413 PR
939-414 PR
939-415 PR
939-416 PR
939-417 PR
939-418 PR
939-437 PR
939-440 SAN JUAN PR
939-452 PR
939-475 PR
939-489 SAN JUAN PR
939-500 PR
939-511 PR
939-535 PR
939-555 PR
939-579 PR
939-611 PR
939-628 PR
939-630 PR
939-639 PR
939-640 PR
939-642 PR
939-644 PR
939-645 PR
939-697 SAN JUAN PR
939-700 PR
939-711 PR
939-717 PR
939-731 SAN JUAN PR
939-732 PR
939-777 PR
939-787 PR
939-811 PR
939-865 PR
939-891 PR
939-910 SAN JUAN PR
939-911 PR
939-939 PR
939-940 PR
939-950 PR
939-958 PR
939-959 PR
939-969 PR
939-976 PR

About our free web caller ID service

phone image Caller ID goes by different names, such as CID, calling line identification (CLID), calling number delivery (CND), calling number identification (CNID) or calling line identification presentation (CLIP). It is a service provided by the telephone company, and works with older analog phone systems and most new voice over Internet Protocol (VoIP) systems. It simply transmits a caller's number to the called party's telephone equipment during the ringing signal, or when the call is being set up but before the call is answered. When available, caller ID also provides a name associated with the calling telephone number. The information made available to the called party may be displayed on a telephone's display, or a separately attached device. Until caller-id.co was developed, to view this information you needed a Caller ID receiver, a compatible phone, and a subscription to Caller ID service from your telephone operator. Some telephone operators charge as much as $10 per month for Caller ID. That's no longer necessary - you may now lookup the caller ID after the call by using our free service.

Caller ID is particularly useful to track down or limit the impact of tele-marketers, pranksters, and other nuisance callers.

History of Caller ID

In 1968, Theodore George “Ted” Paraskevakos, while working in Athens, Greece as a communications engineer for SITA, began developing a system to automatically identify a telephone caller to a call recipient. After several attempts and experiments, he developed the method in which the caller's number is transmitted to the called receiver's device. This method was the basis for modern-day Caller ID technology. You may learn more about the full history of caller ID on this wikipedia article.




Sitemap for 939 Caller ID directory

By proceeding with a Caller ID reverse phone number lookup, you agree to the Terms & Conditions of use for the Caller-ID.co website. Specifically, you attest that you are using this service only to find the Caller ID of a number that called your phone. You will not use the service to annoy, harass, or otherwise violate the privacy rights of the caller. You agree to use the service only for individual, non-commercial use, and to refrain from redistributing or publishing the callerid results. You indemnify callerid.co in the rare event any information returned is unavailable or inaccurate.

Copyright 2013 CALLER-ID.co