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Search references for REVERSE LOOKUP. Phrases containing REVERSE LOOKUP
See searches and references containing REVERSE LOOKUP!REVERSE LOOKUP
Type of information search procedure
Reverse lookup is a procedure of using a value to retrieve a unique key in an associative array. Applications of reverse lookup include reverse DNS lookup
Reverse_lookup
Finding a domain name associated to an IP address
In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the
Reverse_DNS_lookup
Service allowing users to search by telephone number
A reverse telephone directory (also known as a gray pages directory, criss-cross directory or reverse phone lookup) is a collection of telephone numbers
Reverse_telephone_directory
System to identify resources on a network
AAAA), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS lookups (PTR), and domain name aliases (CNAME). Although not intended to
Domain_Name_System
Network parameter configuration
mail server as a relay may solve the reverse DNS problem, because the requirement is the forward and reverse lookup for the sending relay have to match
Forward-confirmed_reverse_DNS
Internet top-level domain
subdomains in-addr.arpa and ip6.arpa, which provide namespaces for reverse DNS lookup of IPv4 and IPv6 addresses, respectively. The name originally was
.arpa
Topics referred to by the same term
locomotive Reverse lookup, using a value to retrieve a unique key in an associative array Reverse telephone directory Reverse DNS lookup Reverse tape effects
Reverse
DNS server for reverse lookups of invalid IP ranges
System (DNS) servers that return a "nonexistent address" answer to reverse DNS lookups for addresses reserved for private use. There are several ranges
Blackhole_server
Telephone number prefix
companies began promoting 555-1313 as "name that number", a pay-per-use reverse lookup which would give a subscriber name if the user entered an area code
555 (North American Numbering Plan)
555_(North_American_Numbering_Plan)
Book that lists phone numbers of people and businesses
provide a reverse lookup feature (by phone number or by address), albeit involving up to five CD-ROMs. The combination of phone number lookups, along with
Telephone_directory
Inter-process communication API
system or the local host's other resolver mechanisms (e.g., /etc/hosts lookup). They return a pointer to an object of type struct hostent, which describes
Berkeley_sockets
Label to identify a network interface of a computer or other network node
IPv6 addresses by AAAA resource records, so-called quad-A records. For reverse lookup the IETF reserved the domain ip6.arpa, where the name space is hierarchically
IPv6_address
Mobile phone application
SMS scamming and spamming. It has AI algorithms with built-in free reverse phone lookup service and customized answer bots for detection, engagement and
RealCall
Suite of IETF specifications
their country code top-level domains; RIPE NCC, who have signed all the reverse lookup records (in-addr.arpa) that are delegated to it from the Internet Assigned
Domain Name System Security Extensions
Domain_Name_System_Security_Extensions
Network service attack performed by multiple fake identities
correspondence between an identity and an entity and may even provide a reverse lookup. An identity may be validated either directly or indirectly. In direct
Sybil_attack
Windows. Usage is not restricted to UNC paths. Compared to ip6.arpa reverse lookup domains it will return an IPv6 address but without generating any DNS
List of Internet top-level domains
List_of_Internet_top-level_domains
American directory services company
People Search". App Store. Retrieved June 2, 2025. "Whitepages – Reverse Phone Lookup". App Store. Retrieved June 2, 2025. Stern, Joanna (June 28, 2016)
Whitepages_(company)
System for debugging Internet routing
the world. Looking Glass server source code Clickable map of known Reverse Lookup and Looking Glass servers in the world Archived 2008-09-08 at the Wayback
Looking_Glass_server
words, similar to a glossary, while others offer search features, reverse lookups, and additional language tools and content such as verb conjugations
List_of_online_dictionaries
Integrated telephone numbering plan of twenty North American countries
companies briefly promoted 555-1313 as a pay-per-use "name that number" reverse lookup during the mid-1990s. Occasionally, valid telephone numbers are used
North_American_Numbering_Plan
Specialized dictionary used to translate words or phrases from one language to another
but not necessarily corresponding meanings, the user should perform a reverse lookup. In the above-mentioned example in English and Spanish of the word ticket
Bilingual_dictionary
Internet company specializing in making public records available online
million in 2012. In 2015, BeenVerified launched a caller ID and reverse phone lookup app for the Apple Watch. BeenVerified uses traditional background
BeenVerified
Top level domain without country association
arpa wherever feasible, which led to the use of ip6.arpa for IPv6 reverse lookups. By the mid-1990s, there was discussion of the introduction of more
Generic_top-level_domain
Data structure for query optimization in databases
columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records. An index is a copy of selected
Database_index
Computer function
MurmurHash is a non-cryptographic hash function suitable for general hash-based lookup. It was created by Austin Appleby in 2008 and, as of 8 January 2016, is
MurmurHash
Administrable unit of the Domain Name System
Forward DNS (Or Forward DNS Lookup)? - Definition from Techopedia". 23 October 2012. "Understanding Forward and Reverse Lookup Zones in DNS". 10 February
DNS_zone
American public records business
property search, background checks and reverse phone lookup. Users also have the ability to perform reverse address lookups to find people using Intelius’ services
Intelius
Mobile Phone
Turkish, Ukrainian, Vietnamese Type Caller ID, Spam blocker, Telephone directory, phone call reverse lookup License Proprietary Website numbuster.com
Numbuster
Method to track the viewing of a webpage
travel times, as well as details about their environment. By doing a reverse lookup of an IP address, the log entry can provide information on which organizations
Web_beacon
Topics referred to by the same term
is silently discarded Blackhole server, a DNS server that handles reverse lookups of invalid IP ranges A storage engine provided by MySQL data The Black
Black_hole_(disambiguation)
Notation for expressing numbers in Thai
from the original on 2012-09-11. Retrieved 2011-06-04. English-Thai reverse lookup and synonyms Suthiwan, Titima; Uri Tadmor (2009). Martin Haspelmath
Thai_numerals
Simple email-validation system designed to detect email spoofing
already results in more than two void lookups and hence PERMERROR. Mechanisms ip4, ip6 and all need no DNS lookup. To enable rapid testing and deployment
Sender_Policy_Framework
Stack-based programming language
words. A stack is used to pass parameters between words, leading to a Reverse Polish notation style. For much of Forth's existence, the standard technique
Forth_(programming_language)
It followed with BackType Connect, a service that allowed users to reverse lookup a URL to view comments written in response across the web. Notably,
BackType
Ethics of online activities
to have their names removed from a database. Banning the reverse social security number lookup services.[page needed] The evolution of hacking raises ethical
Cyberethics
Application to look up phone numbers
Caller Lookups". App Annie. Retrieved 18 February 2014. Love, Dylan (2 June 2011). "Stalk Your Stalker With This Reverse Phone Number Lookup App". Business
NumberGuru
Associates addresses in the layers of a networked device implementation
Typically, a network node maintains a lookup cache that associates IP and MAC addresses. In this example, if A had the lookup cached, then it would not need
Address_Resolution_Protocol
Caching and forwarding HTTP web proxy
caching World Wide Web (WWW), Domain Name System (DNS), and other network lookups for a group of people sharing network resources, and aiding security by
Squid_(software)
Six stacked horizontal lines used in Chinese divination
hexagram types: Eight Trigrams Original Hexagram Future Hexagram Contrasting (Reverse) Hexagram (is found by turning a hexagram upside down) Complementary Hexagram
Hexagram_(I_Ching)
characteristics for parts ordering and fluid type during maintenance. A Licence Plate Lookup returns the vehicle's VIN and other data, removing the need for a tradesman
Vehicle registration plates of New Zealand
Vehicle_registration_plates_of_New_Zealand
Community
establishment of the codes, all four still default to "Atlanta" when doing a reverse lookup. However, USPS systems now consider the correct city names to be acceptable
Perimeter_Center
Computer-networking protocol defined in RFC 2845
combination with poorly configured DNS (with no reverse lookup zone) using RFC 1918 addressing, reverse DNS updates using this authentication scheme are
TSIG
Adjacent characters (tokens) merge-based compression algorithm
be performed by reversing this process, querying known placeholder terms against their corresponding denoted sequence, using a lookup table. In the original
Byte-pair_encoding
Table of integrals compiled by I. S. Gradshteyn and I. M. Ryzhik
of the integrals are listed in a registry as well, thereby allowing reverse lookup of integrals based on special functions or constants. On the downsides
Gradshteyn_and_Ryzhik
the index for each lookup depends on the value fetched in the previous one. Thus, the second lookup cannot begin until the first lookup is complete. When
Computation of cyclic redundancy checks
Computation_of_cyclic_redundancy_checks
Addressing format
name servers (which convert numbers to addresses one-by-one as DNS reverse-lookups). SIP addresses may be used directly in configuration files (for instance
SIP_URI_scheme
System of rules to convert information into another form or representation
from a source into symbols for communication or storage. Decoding is the reverse process, converting code symbols back into a form that the recipient understands
Code
Mobile network extension company in California, United States
visual voicemail app by adding call and text blocking and real-time reverse lookups on incoming calls and SMS messages. The app can deter callers by picking
Youmail
2014 edition of the C++ programming language standard
the user to specify a key and a value, where lookup is done by key and returns a value. However, the lookup is always done by the specific key type, whether
C++14
Public records business located in Sacramento, California
Also in the interest of finding people, PeopleFinders offers a reverse phone lookup service that allows users to find people or businesses behind unknown
PeopleFinders.com
American actor and filmmaker (born 1972)
Spanish). Retrieved October 15, 2020. "Donor Lookup". OpenSecrets. Retrieved April 2, 2023. "Donor Lookup". OpenSecrets. Archived from the original on
Ben_Affleck
Utility to query the Domain Name System
nslookup (from name server lookup) is a network administration command-line tool for querying the Domain Name System (DNS) to obtain the mapping between
Nslookup
Unique identifier assigned to network interfaces
lookup IEEE Public OUI/MA-L list IEEE Public OUI-28/MA-M list IEEE Public OUI-36/MA-S list IEEE Public IAB list IEEE IAB and OUI MAC Address Lookup Database
MAC_address
Eight trigrams used in Taoist cosmology
bottom-up. The ID numbers of Mountain (☶, 100) and Thunder (☳, 001) should be reversed, [i.e. Mountain (☶)'s binary value should be 001 while Thunder (☳)'s binary
Bagua
Algorithm to convert binary numbers to BCD
By applying the reverse double dabble algorithm a BCD number can be converted to binary. Reversing the algorithm is done by reversing the principal steps
Double_dabble
Mirrored website of Google Search
Archived from the original on June 9, 2025. Retrieved October 19, 2025. "RDAP Lookup" (JSON). Markmonitor. Retrieved January 13, 2026. "Google users find mirror-image
ElgooG
Unix program for DNS lookups
all members of a domain. The host command is also able to perform reverse IP lookups to find the FQDN associated with an IP address. $ host example.com
Host_(Unix)
Substitution box used in the Rijndael cipher
The Rijndael S-box is a substitution box (lookup table) used in the Rijndael cipher, on which the Advanced Encryption Standard (AES) cryptographic algorithm
Rijndael_S-box
Californian online investigation service
including social searches (names, emails, usernames, and phone numbers) and reverse image searches. The service specializes in determining if a person has
Social_Catfish
American data broker
provides information related to people for background checks and reverse address lookup. The website also provides an option to opt-out. "Why states are
Truthfinder
geographical locations. The GeoNetMap system does not use WHOIS data, DNS reverse-lookups or cookies; it relies totally on its own proprietary IP address location
Geobytes
2024 mobile operating system
was able to implement the feature because Apple introduced Live Caller ID Lookup in iOS 18, allowing third-party caller ID apps to securely make a call to
IOS_18
DNS implementation software package
a database-driven DNS server. walldns — a "reverse DNS wall", providing IP address-to-domain name lookup only. rbldns — a server designed for DNS blacklisting
Djbdns
Flash file system
System Licensing Reverse Engineering the Microsoft exFAT File System, SANS Institute. US application 2009164440 , "Quick Filename Lookup Using Name Hash";
ExFAT
Domain at the highest level of the DNS hierarchy
names to the domain name system. However, after it had been used for reverse DNS lookup, it was found impractical to retire it, and is used today exclusively
Top-level_domain
Type of resource record in the Domain Name System (DNS)
server, or a more "distant" MX record. It does say, in Section 5.1: When the lookup succeeds, the mapping can result in a list of alternative delivery addresses
MX_record
Family of related bitwise operations on machine words
may be loosely described as linear search, binary search, search+table lookup, de Bruijn multiplication, floating point conversion/exponent extract, and
Find_first_set
24-bit number in networking equipment that uniquely identifies its manufacturer
lookup IEEE Public OUI/MA-L list IEEE Public OUI-28/MA-M list IEEE Public OUI-36/MA-S list IEEE Public IAB list IEEE IAB and OUI MAC Address Lookup Database
Organizationally unique identifier
Organizationally_unique_identifier
Algorithm for modelling sequential data
representations called tokens, and each token is converted into a vector via lookup from a word embedding table. At each layer, each token is then contextualized
Transformer_(deep_learning)
C programming function
fprintf(stderr, "Reverse DNS lookup for %s: system error %s\n", addr, strerror(errno)); break; default: fprintf(stderr, "Reverse DNS lookup failed for %s:
Getaddrinfo
Type of machine learning model
allows for the use of a different quantization codebook per layer, either a lookup table of values or a linear mapping (scaling factor and bias), at the cost
Large_language_model
Application framework for Java platform
injection and dependency lookup are examples of Inversion of Control. Objects can be obtained by means of either dependency lookup or dependency injection
Spring_Framework
American politician and attorney (born 1942)
15, 2016. "Morning Consult's Senator Approval Rankings: Q2 2019, Senator Lookup". Morning Consult. 2019. Archived from the original on October 14, 2019
Mitch_McConnell
Method used for display options on video text terminals
emulators translate the 4-bit color codes into 24-bit color codes. As 256-color lookup tables became common on graphic cards, escape sequences were added to select
ANSI_escape_code
Printing press made from 1923 to 1985
Heidelberg: The Prince of Presses". Type & Press. Retrieved 21 November 2018. "Lookup by serial number". Drupama, Printing Machinery from Germany to the World
Heidelberg_Platen_Press
American author and commentator
Taunton official author website The Grace Effect book Articles published by Larry Taunton LookUp 316 super bowl commercial website Appearances on C-SPAN
Larry_Taunton
American serial killer (born 1953)
York Post. May 28, 2024. Retrieved May 30, 2024. "Incarcerated Lookup". Incarcerated Lookup. May 25, 2024. Retrieved May 25, 2024. "'Son of Sam' Weighs in
David_Berkowitz
Currency of Canada
divided into 100 cents (¢). Owing to the image of a common loon on its reverse, the dollar coin, and sometimes the unit of currency itself, may be referred
Canadian_dollar
Standard for the encryption of electronic data
substitution step where each byte is replaced with another according to a lookup table. ShiftRows – a transposition step where the last three rows of the
Advanced_Encryption_Standard
Swedish Mobile phone application
Network'". Telecom Regulatory Authority of India. 23 February 2024. "Reverse Phone Lookup & Search". claritycheck.com. Singh, S. Ronendra (14 June 2024). "Telecom
Truecaller
Random search tree data structure
from a list values. In addition to the single-element insert, delete and lookup operations, several fast "bulk" operations have been defined on treaps:
Treap
Keeping a telephone number when switching mobile carriers
prior to attempted routing of messaging or voice traffic. These number lookup services can access the centralized database where the details related to
Mobile_number_portability
Barcode symbology
algorithm uses the Luhn algorithm. 1. Reverse the string to be encoded (in this case 1234567). Let S be the reverse of the string to be encoded S = 7654321
MSI_Barcode
Web mapping service
getting Live View AR search in these cities as Lens adds 'near me' food lookup". 9to5Google. Archived from the original on March 30, 2023. Retrieved January
Google_Maps
Processes through which companies combine or transfer ownership
post-acquisition combined entity. This is known as a reverse takeover. Another type of acquisition is the reverse merger, a form of transaction that enables a
Mergers_and_acquisitions
Defunct American multinational telecommunications and internet service provider
telephone companies "Stock Ticker Symbol Lookup - MarketWatch". "Stock Ticker Symbol Lookup - MarketWatch". "Symbol Lookup from Yahoo Finance". "About Level
Level_3_Communications
arrays) compares the features of associative array data structures or array-lookup processing for over 40 computer programming languages. The following is
Comparison of programming languages (associative array)
Comparison_of_programming_languages_(associative_array)
High school in New Mexico, United States
Mexico Activities Association. Retrieved March 22, 2025. "GMCS Address Lookup". Gallup-McKinley County Schools. Retrieved January 15, 2022. - KML files:
Crownpoint_High_School
Simple encryption method
cryptography, a reciprocal cipher). The transformation can be done using a lookup table, such as the following: For example, in the following joke, the punchline
ROT13
Microsoft .NET Framework component
projection function extracts a key from each element. ToLookup: Creates a System.Linq.Lookup<K, V> from the collection, indexed by the key K. A user supplied
Language_Integrated_Query
Conversion of digital data between formats
approach; rather than needing lookup tables for all possible pairs of character encodings, an application needs only one lookup table for each character set
Data_conversion
American coin certification organization
original on 2016-06-11. Retrieved 2016-07-12. NGC Certification Lookup: "Obverse and Reverse of a 2022 P – RI Yacht "Reliance" American Innovation $1 coin
Numismatic_Guaranty_Company
Software class or data structure whose instances are collections of other objects
Container abstract data types include: FIFO queues LIFO stacks Priority queues Lookup tables (LUTs) Key-associated data structures Sets, containing and indexing
Container (abstract data type)
Container_(abstract_data_type)
Method to block host for e-mail spam
address in a DNSBL is thus similar to looking it up in reverse-DNS. The differences are that a DNSBL lookup uses the "A" rather than "PTR" record type, and uses
Domain_Name_System_blocklist
Brand of polymer-framed semi-automatic pistols
2015. Retrieved 24 July 2009. "Pistol, 9 Millimeter, Semi-Automatic". NSN Lookup. Retrieved 16 May 2022. Felts, Kevin (8 January 2018). "Glock 19X Magazine
Glock
Family of Transmissions from GM
to a Simpson planetary geartrain, providing three forward speeds plus reverse. The Turbo-Hydramatic or Turbo Hydra-Matic (THM) series was developed to
Turbo-Hydramatic
American politician (born 1981)
politicians List of mayors of the 50 largest cities in the United States "Donor Lookup". OpenSecrets. Archived from the original on February 27, 2025. Retrieved
Kate_Gallego
Dynamic table that maps network addresses to ports
mechanism that employs reverse-path forwarding lookups in the router's tables to perform this check. This is often implemented as a lookup in the FIB of the
Forwarding_information_base
Public land-grant university in College Station, Texas, US
2007. Retrieved January 1, 2007. "Carnegie Classifications Institution Lookup". carnegieclassifications.iu.edu. Center for Postsecondary Education. Archived
Texas_A&M_University
Linked hypertext system on the Internet
Protocol address using the globally distributed Domain Name System (DNS). This lookup returns an IP address such as 203.0.113.4 or 2001:db8:2e::7334. The browser
World_Wide_Web
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