Whois Lookup

Query registration info, expiration date, registrar and more for domain, IP or ASN

Example： google.com · baidu.com · github.com · 8.8.8.8 · 211.234.110.0/24 · AS13335
Registration Info
205.178.0.0/17
IP Range
205.178.0.0 - 205.178.127.255
CIDR
205.178.0.0/17
Network Name
RCN-BLK-18
Organization
RCN (RTSL-6)
Country/Region
US
Abuse Contact
[email protected]
Registration Date
1995-03-20
Update Date
2026-04-20
Registrant
RCN (RTSL-6)
Domain Status
Direct Allocation
Raw Whois Data
#
# 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 1997-2026, American Registry for Internet Numbers, Ltd.
#


NetRange:       205.178.0.0 - 205.178.127.255
CIDR:           205.178.0.0/17
NetName:        RCN-BLK-18
NetHandle:      NET-205-178-0-0-1
Parent:         NET205 (NET-205-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   RCN (RTSL-6)
RegDate:        1995-03-20
Updated:        2026-04-20
Comment:        Geofeed https://geofeed.eng.rcn.net/AS6079.csv
Ref:            https://rdap.arin.net/registry/ip/205.178.0.0


OrgName:        RCN
OrgId:          RTSL-6
Address:        650 College Road East
City:           Princeton
StateProv:      NJ
PostalCode:     08540
Country:        US
RegDate:        2013-07-09
Updated:        2022-08-30
Comment:        For all abuse issues, please contact [email protected]
Ref:            https://rdap.arin.net/registry/entity/RTSL-6

ReferralServer:  rwhois://rwhois.rcn.net:4321

OrgNOCHandle: ABN3-ARIN
OrgNOCName:   Astound Broadband NOC
OrgNOCPhone:  +1-888-972-6622 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/ABN3-ARIN

OrgTechHandle: ZR40-ARIN
OrgTechName:   RCN Corporation
OrgTechPhone:  +1-888-972-6622 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ZR40-ARIN

OrgAbuseHandle: RAD75-ARIN
OrgAbuseName:   RCN Abuse Department
OrgAbusePhone:  +1-888-972-6622 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RAD75-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 1997-2026, American Registry for Internet Numbers, Ltd.
#