A	Anomalous
AA	Ability Answer
AA	Accept Any
AA	Authentication Agent
AA	attribute authority
AAA	Authentication, Authorization, Accounting
AAA	authorization, and/or accounting
AACN	Advanced Automatic Crash Notification
AAD	Additional Authentication Data
AAD	additional authenticated data
AAE	Active-Active Edge
AAK	Authenticated Anticipatory Keying
AAL	ATM Adaptation Layer
AAL5	ATM Adaptation Layer 5
AAP	Address Allocation Protocol
AAR	ARC-Authentication-Results
AARL	Attribute Authority Revocation List
AARP	AppleTalk Address Resolution Protocol
AAS	AimTraveler Authentication Server
ABA	American Bankers Association
ABAC	Attribute-Based Access Control
ABNF	Advanced Backus Naur Form
ABNF	Augmented Backus-Nauer Form
ABNF	Augmented Backus-Naur Form
ABNO	Application-Based Network Operations
ABR	Area Border Router
ABR	Available Bit Rate
ABRO	Authoritative Border Router Option
AC	Access Controller
AC	Admission Control
AC	Attachment Circuit
AC	Attribute certificate
AC	Audio Capture
AC	Authentication Code
AC	alternating current
ACA	Acquire Change Authorization
ACA	Auto Contingent Allegiance
ACAP	Application Configuration Access Protocol
ACC	ACK Congestion Control
ACC	access control center
ACCM	Async-Control-Character-Map
ACCM	Asynchronous-Control-Character-Map
ACD	Address Conflict Detection
ACD	automatic call distribution
ACDC	Advanced Cyber Defence Centre
ACE	ASCII Compatible Encoding
ACE	ASCII-compatible encoding
ACE	access control entry
ACFC	and-Control-Field-Compression
ACH	Associated Channel Header
ACH	Automated Clearing House
ACL	Access Control List
ACM	Address Complete Message
ACM	access control model
ACME	Automated Certificate Management Environment
ACME	Automatic Certificate Management Environment
ACN	Advanced Communications Networks
ACP	Allied Communications Publication
ACP	Autonomic Control Plane
ACPL	Architectural Component Proportionality Law
ACQ	All Call Query
ACR	Allowed Cell Rate
ACRL	Attribute Certificate Revocation List
ACSE	Association Control Service Element
ACSP	Aeronautical Communications Service Provider
AD	Area Director
AD	Associated Data
AD	Authentic Data
AD	Authenticated Data
AD	Authentication Data
AD	administrative domain
AD	autonomous domains
ADAG	Almost Directed Acyclic Graph
ADB	Application Data Block
ADD	Authorization Delegation Discovery
ADE	Authenticated Data Exchange
ADIF	Accounting Data Interchange Format
ADP	Automatic Data Processing
ADPCM	Adaptive Differential Pulse Code Modulation
ADR	Ack-deliver range
ADSL	Asymmetric digital subscriber line
ADSL2	Asymmetric Digital Subscriber Line 2
ADSP	AppleTalk Data Stream Protocol
ADSP	Author Domain Signing Practices
ADTF	ACR Decrease Time Factor
ADTS	Audio Data Transport Stream
ADU	application data unit
ADVPN	Auto-Discovery Virtual Private Network
AE	Addressable Entity
AE	Authenticated Encryption
AE	Authorizing Entity
AEC	Acoustic Echo Cancellation
AEEC	Airlines Electronic Engineering Committee
AEG	Audio Enabled Gateway
AERO	Asymmetric Extended Route Optimization
AES	Advanced Encryption Standard
AES	Asynchronous Event Scheduler
AESA	ATM End Station Address
AF	ACK Filtering
AF	Anchoring Function
AF	Appointed Forwarder
AF	Assured Forwarding
AF	Attribute Format
AF	Audio Frame
AF	Autonomic Functions
AF	address family
AFBR	Address Family Border Router
AFC	Adaptation Field Control
AFI	Address Family Identifier
AFN	Address Family Number
AFTR	Address Family Transition Router
AFTR	Address Family Translation Router
AGC	Automatic Gain Control
AGC	Automatic Generation Control
AGI	Attachment Group Identifier
AH	Authentication Header
AHS	Additional Header Segment
AI	Anonymity Issuer
AIA	Authority Info Access
AIA	Authority Information Access
AIB	Authenticated Identity Body
AII	Attachment Individual Identifier
AIMD	Additive Increase, Multiplicative Decrease
AIMD	Additive-Increase, Multiplicative-Decrease
AIMS	AimQuest Internet Management System
AIN	Advanced Intelligent Network
AIOD	Automatic Identified Outward Dialing
AIR	Additive Increase Rate
AIRF	Additive Increase Rate Factor
AIS	Alarm Indication Signal
AISC	Aeronautical Industry Services Communication
AIT	Application Information Table
AIV	Alternative Initial Value
AIW	APPN Implementers' Workshop
AK	Authentication Key
AL	Access Link
ALA	American Library Association
ALC	Asynchronous Layered Coding
ALC	accounting legend code
ALE	Address Lifetime Expectancy
ALF	Application Level Framing
ALG	Application Layer Gateway
ALG	Application Level Gateway
ALG	Application-Level Gateway
ALM	Application-Layer Multicast
ALPN	Application-Layer Protocol Negotiation
ALR	application-level router
ALRP	Application-Level-Resource-Priority
ALT	Alternative Logical Topology
ALTO	Application Layer Transport Optimization
ALTO	Application-Layer Traffic Optimization
AM	ARP Mediation
AM	Asset Manager
AM	admission marked
AMBR	Aggregate Maximum Bit Rate
AMCA	Asynchronous Multi-channel Adaptation
AME	Application Message End
AMF	Address Mapping Function
AMG	Advanced Multipath Group
AMI	Advanced Metering Infrastructure
AMP	Accelerated Mobile Pages
AMP	Asynchronous Mapping Procedure
AMR	Adaptive Multi Rate
AMR	Adaptive Multi-Rate
AMRR	Adaptive Multi Rate Retry
AMS	ARC-Message-Signature
AMS	Application Message Start
AMS	authoritative mapping server
AMSS	Advanced Mobile Station Software
AMT	Aggregated Multicast Throughput
AMT	Automatic Multicast Tunneling
AMVP	Advanced Motion Vector Prediction
AN	Access Network
AN	Autonomic Network
ANA	Assigned Numbers Authority
ANAT	Alternative Network Address Types
ANCP	Access Node Control Protocol
ANG	Access Network Gateway
ANI	Access Network Identifier
ANI	Access-Network Identifier
ANI	Automatic Number Identification
ANI	Autonomic Networking Infrastructure
ANI	automatic numbering identification
ANL	Argonne National Laboratory
ANM	Adaptive Network Management
ANQP	Access Network Query Protocol
ANR	Access Network Router
ANR	Automatic Network Routing
ANRP	Applied Networking Research Prize
ANS	ATM Name Server
ANS	Automatic Network Shutdown
ANSI	American National Standards Institute
ANSN	Advertised Neighbor Sequence Number
ANSP	Aeronautical Navigation Service Provider
ANSP	Air Navigation Service Provider
AO	Abort Output
AO	Active-Open
AO	Archive Object
AOR	Ack-only range
AOR	Address of Record
AOR	Address-of-Record
AOS	Airline Operational Services
AP	Accept Preferred
AP	Access Provider
AP	Admitting Peer
AP	Advanced Prediction
AP	Aggregation Packet
AP	Application Program
AP	Authenticating Party
APB	Available Path Bandwidth
APD	Access Point Database
API	Application Program Interface
API	Application Programmers Interface
API	Application Programming Interface
API	Application Protocol Interface
APIDA	Auto Parts Identification DDDS Application
APM	Adaptive Pointer Management
APM	Automatic Path Migration
APN	Access Point Name
APNIC	Asia Pacific Network Information Centre
APP	Address Pooling Paired
APS	Automatic Protection Switching
APS	Automatic Protection-Switching
APWG	Anti-Phishing Working Group
AQ	Ability Query
AQM	Active Queue Management
AR	ACK Reconstruction
AR	Access Router
AR	Address Resolution
AR	Administrative Request
AR	Augmented Reality
AR	admissible-rate
ARA	Administrative Request Acknowledge
ARAP	Apple Remote Access Protocol
ARAP	AppleTalk Remote Access Protocol
ARB	adaptive rate based
ARC	Alarm Reporting Control
ARC	Authenticated Received Chain
ARDRT	ABR Rate Decrease Response Time
ARF	Abuse Reporting Format
ARF	Audio Resource Function
ARIRT	ABR Rate Increase Response Time
ARL	Authority Revocation List
ARM	ARPANET Reference Model
ARO	Access Router Option
ARO	Address Registration Option
ARP	Address Resolution Protocol
ARPA	Advanced Research Projects Agency
ARQ	Automatic Repeat Query
ART	Advanced Rendering Tools
ART	Area Review Team
ARU	Advanced Research Unit
AS	ARC-Seal
AS	Access Stratum
AS	Applicability Statement
AS	Application Server
AS	Authentication Service
AS	Autonomous System
AS	authorization server
AS2	Applicability Statement 2
ASA	Abort-Session-Answer
ASA	Access Service Authorizer
ASA	Autonomic Service Agent
ASAP	Aggregate Server Access Protocol
ASAP	Alarm Severity Assignment Profile
ASBR	Autonomous System Border Routers
ASC	ACCREDITED STANDARDS COMMITTEE
ASC	ATM Service Categories
ASE	Autonomous System External
ASEDD	Arizona State Economic Development Database
ASI	Application Specific Information
ASIC	Application-specific Integrated Circuit
ASM	Any Source Multicast
ASM	Any-Source Multicast
ASM	Application Specific Module
ASMS	Advanced Satellite Multimedia Systems
ASN	Absolute Slot Number
ASN	Access Service Network
ASN	Autonomous System Number
ASON	Automatic Switched Optical Network
ASON	automatically switched optical network
ASP	Access Service Provider
ASP	AppleTalk Session Protocol
ASP	Application Server Process
ASP	Application Service Provider
ASPM	Application Server Process Maintenance
ASPSM	Application Server Process State Maintenance
ASPTM	Application Server Process Traffic Maintenance
ASR	Abort-Session-Request
ASR	automatic speech recognition
ASRG	Anti-Spam Research Group
AST	Asynchronous Session Termination
AT	Assert Timer
AT	Atomic Transaction
AT	Authentication Trailer
ATA	Analog terminal adapters
ATCP	Apple Talk Control Protocol
ATD	Activation Time Delay
ATM	Acoustical Transmission Media
ATM	Asynchronous Transfer Mode
ATM	Asynchronous Transfer-Mode
ATM	Asynchronous Transmission Mode
ATM	automated teller machine
ATMP	Ascend Tunnel Management Protocol
ATN	Aeronautical Telecommunication Network
ATN	Aeronautical Telecommunications Network
ATO	Adaptive Time-Out
ATP	AppleTalk Transaction Protocol
ATS	ATU Transmission System
ATS	Archive Time-Stamp
ATSC	Advanced Television Systems Committee
ATSC	Archive Time-Stamp Chain
ATT	Access Technology Type
ATT	Access-Technology-Type
ATU	ADSL Transceiver Unit
AU	Access Unit
AU	administrative unit
AUP	Acceptable Use Policy
AUP	Appropriate Use Policy
AUS	Application Unique String
AVBDC	Absolute Volume-Based Dynamic Capacity
AVC	Advanced Video Coding
AVC	Audio-Video Conferencing
AVI	Audio Video Interleave
AVP	Attribute Value Pair
AVP	Attribute-Value Pair
AVP	Audio-Visual Profile
AVQ	Adaptive Virtual Queue
AWTD	A-Window-To-Directory
AYT	Are You There