IPv4 prefix

173.45.0.0/18

IP Prefix (CIDR)
173.45.0.0/18
Subnet Mask
255.255.192.0
Address Count
16,384
Registration 1 of 3
Owner
Atlantic Metro Communications II, Inc.
Handle
AMCI-3
Address
4 Century Dr Parsippany NJ 07054 United States
Registry
ARIN
Registered Prefix
173.45.0.0/18 (173.45.0.0 - 173.45.63.255)
Registration 2 of 3
Owner
Optoro, Inc.
Handle
OPTOR-2
Address
1001 G St NW Ste 1200 Washington DC 20001 United States
Registry
ARIN
Registered Prefix
173.45.16.0/24 (173.45.16.0 - 173.45.16.255)
Delegated Prefix
173.45.0.0/18 (173.45.0.0 - 173.45.63.255)
Registration 3 of 3
Owner
Altruista Health, Inc
Handle
AH-696
Address
11480 Sunset Hills Road Suite 200E Reston VA 20190 United States
Registry
ARIN
Registered Prefix
173.45.17.0/24 (173.45.17.0 - 173.45.17.255)
Delegated Prefix
173.45.0.0/18 (173.45.0.0 - 173.45.63.255)
Announced Prefix Relationship Origin ASN Description Country First Address Last Address
173.45.2.0/23 More specific AS29838 Atlantic Metro Communications II Inc. United States of America (US) 173.45.2.0 173.45.3.255
173.45.4.0/22 More specific AS29838 Atlantic Metro Communications II Inc. United States of America (US) 173.45.4.0 173.45.7.255
173.45.16.0/22 More specific AS29838 Atlantic Metro Communications II Inc. United States of America (US) 173.45.16.0 173.45.19.255
173.45.17.0/24 More specific AS396205 Altruista Health Inc United States of America (US) 173.45.17.0 173.45.17.255
173.45.20.0/23 More specific AS29838 Atlantic Metro Communications II Inc. United States of America (US) 173.45.20.0 173.45.21.255
173.45.22.0/24 More specific AS15338 CEROBI LLC United States of America (US) 173.45.22.0 173.45.22.255
173.45.32.0/20 More specific AS29838 Atlantic Metro Communications II Inc. United States of America (US) 173.45.32.0 173.45.47.255