APNIC - Query the APNIC Whois Database

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To assist you with debugging problems, this whois query was received from IP Address

% APNIC found the following authoritative answer from: whois.arin.net

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#

NetRange:       128.138.0.0 - 128.138.255.255
CIDR:           128.138.0.0/16
NetName:        COLORADO
NetHandle:      NET-128-138-0-0-1
Parent:         NET128 (NET-128-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS104
Organization:   University of Colorado (UNIVER-24)
RegDate:        1986-07-14
Updated:        2021-12-14
Ref:            https://rdap.arin.net/registry/ip/128.138.0.0

OrgName:        University of Colorado
OrgId:          UNIVER-24
Address:        Office of Information Technology
Address:        3645 Marine Street
City:           Boulder
StateProv:      CO
PostalCode:     80309-0455
Country:        US
RegDate:        1986-03-11
Updated:        2019-06-25
Ref:            https://rdap.arin.net/registry/entity/UNIVER-24

OrgAbuseHandle: ABUSE306-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-303-735-4357 
OrgAbuseEmail:  abuse@colorado.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName:   CUBoulder
OrgTechPhone:  +1-303-735-4357 
OrgTechEmail:  arinadmin@colorado.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CUBOU-ARIN

RTechHandle: CUBOU-ARIN
RTechName:   CUBoulder
RTechPhone:  +1-303-735-4357 
RTechEmail:  arinadmin@colorado.edu
RTechRef:    https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-303-735-4357 
RAbuseEmail:  abuse@colorado.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE306-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
8 records found for '128.138.64.101'
Search for  
IP address lookups Miscellaneous queries
-l

1st level less specific

 Returns smallest IP address range that includes the queried IP address or range

-i

Inverse attributes

 Returns objects with an attribute that matches the query text and attribute type
-L

All less specific

 Return all larger IP address ranges that include the queried IP address or range

-T

Object types

 Results that match the query and are of a specified object type
-m

1st level more specific

 Returns first level more specific address ranges within the boundaries of the queried IP address range
-M

All more specific

 Returns all more specific address ranges within the boundaries of the queried IP address range

Query hints

  • Include "AS" in front of an AS number.
    Example: AS4808

  • Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template
    Example: -t inetnum

-x

Exact match only

 Returns address range that exactly matches the queried IP address range
-d

Associated reverse domain

 Returns IP address range and associated reverse domain

For more information see: