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  2. List of assigned /8 IPv4 address blocks - Wikipedia

    en.wikipedia.org/wiki/List_of_assigned_/8_IPv4...

    List of assigned /8 IPv4 address blocks. Some large / 8 blocks of IPv4 addresses, the former Class A network blocks, are assigned in whole to single organizations or related groups of organizations, either by the Internet Corporation for Assigned Names and Numbers (ICANN), through the Internet Assigned Numbers Authority (IANA), or a regional ...

  3. Address - Wikipedia

    en.wikipedia.org/wiki/Address

    Address. Illuminated address to see better at night. An address is a collection of information, presented in a mostly fixed format, used to give the location of a building, apartment, or other structure or a plot of land, generally using political boundaries and street names as references, along with other identifiers such as house or apartment ...

  4. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    Listings organizations, name, phone & address directories, online business directories, clubs, groups, & other organizations directories — Identity Digital [ID 46] Yes: Yes .discount: Discount sites, bargain hunters, coupon sites, coupon pages, coupon-themed blogs — Identity Digital [ID 47] Yes: Yes .diy: do-it-yourself: Lifestyle Domain ...

  5. List of postal codes - Wikipedia

    en.wikipedia.org/wiki/List_of_postal_codes

    The next batch of numbers (200) represent the area code. The regional, district and area codes come together to form the postcode. The last batch of numbers (1987) represent the unique address of the location. A combination of the postcode and the unique address make up the digital address. Gibraltar: GI: GX11 1AA Single code used for all ...

  6. List of countries by IPv4 address allocation - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_IPv4...

    This is a list of countries by IPv4 address allocation, as of 2 April 2012 [update]. It includes 252 areas, including all United Nations member states, plus the Holy See, Kosovo and Taiwan . There are 2 32 (over four billion) IP addresses in the IPv4 protocol. Of these, almost 600 million are reserved and cannot be used for public routing. [1]

  7. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist.

  8. Unique local address - Wikipedia

    en.wikipedia.org/wiki/Unique_local_address

    A unique local address ( ULA) is an Internet Protocol version 6 (IPv6) address in the address range fc00:: / 7. [1] These addresses are non-globally reachable [2] (routable only within the scope of private networks, but not the global IPv6 Internet). For this reason, ULAs are somewhat analogous to IPv4 private network addressing, but with ...

  9. Block and unblock email addresses in AOL Mail - AOL Help

    help.aol.com/articles/block-and-unblock-email...

    Block email addresses. 1. Open an email or select it from your mailbox. 2. Click the More icon . 2. Click Block Senders. 2. Optionally, select to also delete emails you've received from the sender.