search
|
add
|
request
|
contact us
Uncategorized
Business
Chat and Slang
Education
Government
Locations
Medical
Military
Organizations
Science
Technology
Other
Country Code - literal
Country Calling Codes
IT/Assembly
IT/Databases
IT/DOS Commands
IT/Drivers
IT/File Extensions
IT/General
IT/Hardware
IT/Networking
IT/Security
IT/Software
IT/Telecom
IT/Unix Commands
IT/ASCII Character Codes
IT/Domain Names
IT/HTTP Error Codes
Business/General
Business/Accounting
Business/Credit Unions
Business/Firms
Business/Mortgage
Business/Positions
Business/Products
Business/Prof. Org.
Business/Stock Exchange
Governmental/FBI
Governmental/Military
Governmental/NASA
Governmental/Nazi Regime
Governmental/Police
Governmental/Politics
Governmental/Suppliers
Governmental/UN
Governmental/US Gov.
Educational/GENERAL
Edu./Academic Degrees
Edu./Conferences
Edu./Architecture
Edu./Astronomy
Edu./Botany
Edu./Chemistry
Edu./Electronics
Edu./Geology
Edu./IEEE
Edu./Libraries
Edu./Mathematics
Edu./Ocean Science
Edu./Physics
Edu./Psychology
Edu./Universities
Edu./Schools
Misc/Aircraft
Misc/Awards & Medals
Misc/Chess
Misc/Coins
Misc/Colors
Misc/Days Abbreviations
Misc/Farming
Misc/Food
Misc/Hobbies
Misc/Months Abbreviations
Misc/Names and Nicknames
Misc/Photography
Misc/Plastics
Misc/Science Fiction
Misc/Ship Types
Misc/Toastmasters
Misc/Unit Measures
Misc/USPS
Regional/African
Regional/Airport Codes
Regional/Alaska
Regional/Currencies
Regional/Language Code /2
Regional/Language Code /3
Regional/Railroads
Regional/Time Zones
Medical/Hospitals
Medical/Human Genome
Medical/Laboratory
Medical/Oncology
Medical/Physiology
Medical/Veterinary
Other/Housing
Other/Performing Arts
Other/Religion
Other/Scouting
Other/Synagogues
Other/Unions
Other/Film Censorship
Other/Museums
Other/US Phone Area Codes
Other/States
Other/States-Local
Other/Transportation
Other/Dogs Related
Other/NFL Teams
Other/Canada Provinces
TV Stations
Radio Stations
Sports
FAMOUS
Music
LAW
Non-Profit Organizations
Zip Codes
All Categories
all
|
reset
What does 21 refers to ?
item
description
category
filter
more on...
21
NAK ( Negative Acknowledgement)
IT/ASCII Character Codes
<<
RANDOM SHORTENS
|
POPULARE
SEARCHES
|
LATEST ADDITIONS
15088
RETN
WWAR
WCXI
WVFB
SSSW
26424
CTHPB
LMTX
LIRC
1930
CSCB
96863
NHYM
YIX
29082
NCBC
YFDA
44432
SCANS
WXCR
GZMO
TREVI
ADDMD
62269
23062
98951
62723
YABB
ITG
GJU
11732
AXCP
YIF
NORAD
17138
STS
AA
WHHC
HTTP
SH
A
WQIG
11855
WTF
HLC
ARJ
17198
ASP
GMR
11531
11822
TXB
JBR
EICTA
16310
GJU
CIVC
TCTA
56586
72085
57437
E523
49878
49820
15031
TUSA
NEWEN
47263
FIGMO
TTMAC
VRTA
19483
ARJ
WWHO
WHHC
TTUX
5671
72632
HLC
WWRG
17007
56756
GMII
shortens.info is on of
http://shabaketna.com
websites - 2011 | we are searching in 403790 records
