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NOC
DNS Search
NOC SEARCH
provides Internet users with an easy way to look up DNS Information for
NOAA, government and private servers.
Important
info about IP ADDRESS CLASSES:
IP
addresses are represented as four decimal integers separated by decimal
points, where each integer gives the value of one octet of the IP address.
Normally each IP address contains a network part and a host part. Depending
on the leftmost octet, the address can be categorized in 5 classes and
they are given below:
TYPE
|
Value
of left most octet |
Class A
Class B
Class C
Class D
Class E |
1 - 127
128 - 191
192 - 223
224 - 239
240 - 255 |
The network parts of IP addresses
that are in a class A are of one octet. For example the IP address 1.2.3.4
means that the network part is 1 and the host part is 2.3.4. Class A address
can connect almost 17,000,000 (2 to the power 24 -2) machines. The network
parts of Class B addresses are of 2 octet. Around 6500 ( 2 to the power
16 -2) machines can be connected to a Class B address. The network parts
of Class C addresses are of 3 octet. 254 ( 2 to the power 8 - 2) machines
can be connected to a Class C address. Class D and Class E addresses are
used for special purposes (see RFC 1166).
Use GSA
to look up NOAA (noaa.gov)
nameservers or other nameservers in the .gov
domain.
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GSA Search
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Enter the domain name, email
address or user name (first, last) that you are looking for in the
box below.
Use this format: example.gov, if you are looking for
information for www.example.com. www.example.gov won't work
.
Use Last, First for contact info lookups, and user@examp
le.gov
for mail addresses.
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| Use GSA
to find domain names, user names and e-mail addresses for Points of Contact in the .gov
domain. |
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ARIN Search
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If the first number in your
IP address is 128-191, enter the first two numbers
(eg 140.90) in the space below and press Submit
If the first number in your
IP address is 192-223, enter the first three numbers
(eg 192.111.123) in the space below and press Submit
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| Use
ARIN
to look up NOAA (noaa.gov)
nameservers or other nameservers in the .gov
domain. |
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InterNIC
Search
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Enter the domain name that your
are trying to find the nameserver and/or contact information for
in the box below.
Use this format: example.com, if you are looking for
information for www.example.com. www.example.com won't work.
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| Use
InterNIC
to look up .com,
.net, .org and .edu nameserver and contact information. |
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