If you want to examine the .vcf file more deeply....

The easier option is to copy the allcontacts.vcf file to your computer and open it in a text editor like notepad.
Alternately, if you want to do it straight off the phone you could try installing nano, a text editor in the store, then in the terminal type:

nano /home/user/MyDocs/Contacts/allcontacts.vcf


.vcf files are really just text files behind the scenes.

it should look something like this:

BEGIN:VCARD
VERSION:3.0
UID:0598c850-499f-4844-96ea-8e4aea13ca80
N:OFF;CALLSCREEN;;;
TEL;TYPE=VOICE:##21**11#
REV:2011-12-21T19:43:28+11:00
END:VCARD
BEGIN:VCARD
VERSION:3.0
UID:97add350-0bc6-4c82-bdc7-a1d043e48f82
N:ON;CALLSCREEN;;;
TEL;TYPE=VOICE:**21*128*11#
REV:2011-12-21T19:43:28+11:00
END:VCARD
BEGIN:VCARD
VERSION:3.0
UID:6001002c-c5a5-40cf-91c8-b42136ede52e
N:OFF;CALL HOLD;;;
TEL;TYPE=VOICE:#43#
REV:2011-12-21T19:43:27+11:00
END:VCARD
BEGIN:VCARD
VERSION:3.0
UID:a2c5ef2c-9aaa-4473-aa65-6cb3c8403ac9
N:ON;CALL HOLD;;;
TEL;TYPE=VOICE:*43#
REV:2011-12-21T19:43:28+11:00
END:VCARD

Bare in mind that if you have any photos assigned to contacts the photos will be represented by big blocks of text like the following:
PHOTO;TYPE=PNG;ENCODING=b:iVBORw0KGgoAAAANSUhEUgAA AMAAAACQCAIAAADRMPOnAAAAA3NCSVQICAjb4U/gAAAACXBIWXMAAAuJAAALiQE3ycutAAAgAElEQVR4nKS9Wa8kR 5YmdmzzPfblrpk3mclkVZPFHk5Vdc/09KDRggBh9KR+EiBA6IEESRAkSEBD0pN+mIB+kp6kxtRoqlhdV SSTSd

but they'll be far far far bigger than that, so it'll take a fair bit of digging to see around them.

but basically if there is only one set of BEGIN:VCARD and END:VCARD, then there is only one contact in the file. If there are lots of contacts in the file there will be lots of BEGIN:VCARD END:VCARD blocks

for example:
BEGIN:VCARD
contact details like numbers, emails etc.
END:VCARD
= a single contact in the file

vs

BEGIN:VCARD
contact details like numbers, emails etc.
END:VCARD
BEGIN:VCARD
contact details like numbers, emails etc.
END:VCARD
BEGIN:VCARD
contact details like numbers, emails etc.
END:VCARD
=lots of contacts in the file.

Btw I recommend against posting the contents of your .vcf files on any forum, my real examples at the top were from non private contacts that I believe are specific to my particular network even if they work on other networks there's no real issue having them posted online.