AS Name
CMCS
Org Name
Comcast Cable Communications, LLC
Registry Region
United States
Looking Glass
IPv4Prefixes

39

IPv6Prefixes

38

IPv4 NUMs

18,688

IPv6 NUMs(/64)

35,913,728

18,688 IPv4 Addresses
CIDR Description IP Num
50.200.255.0/24 Comcast Cable Communications, LLC 256
50.201.152.0/24 Comcast Cable Communications, LLC 256
50.202.42.0/24 Comcast Cable Communications, LLC 256
50.202.125.0/24 Comcast Cable Communications, LLC 256
50.203.250.0/24 Comcast Cable Communications, LLC 256
50.204.170.0/24 Comcast Cable Communications, LLC 256
50.206.127.0/24 Comcast Cable Communications, LLC 256
50.207.92.0/24 Comcast Cable Communications, LLC 256
50.216.168.0/24 Comcast Cable Communications, LLC 256
50.220.82.0/24 Comcast Cable Communications, LLC 256
50.220.170.0/24 Comcast Cable Communications, LLC 256
50.226.70.0/24 Comcast Cable Communications, LLC 256
50.227.241.0/24 Comcast Cable Communications, LLC 256
50.228.137.0/24 Comcast Cable Communications, LLC 256
50.229.7.0/24 Comcast Cable Communications, LLC 256
50.231.63.0/24 Comcast Cable Communications, LLC 256
50.232.15.0/24 Comcast Cable Communications, LLC 256
50.233.62.0/24 Comcast Cable Communications, LLC 256
50.233.114.0/24 Comcast Cable Communications, LLC 256
50.236.82.0/24 Comcast Cable Communications, LLC 256
50.238.250.0/24 Comcast Cable Communications, LLC 256
50.239.133.0/24 Comcast Cable Communications, LLC 256
107.0.72.0/24 Meemic (C06216492) 256
107.0.213.0/24 Comcast Cable Communications, LLC 256
108.171.0.0/19 Washtenaw Community College 8192
157.240.130.0/24 Facebook, Inc. 256
157.240.135.0/24 Facebook, Inc. 256
192.64.18.0/24 Masco Cabinetry LLC 256
192.94.101.0/24 MVP Communications Incorporated 256
192.138.205.0/24 Genessee District Library 256
198.180.251.0/24 MSX International 256
198.199.172.0/24 Grand Rapids Public Schools 256
204.74.200.0/22 Meijer Network Technologies 1024
206.201.156.0/24 Genesee County 256
206.201.158.0/24 Genesee County 256
208.80.60.0/24 Enertron L.L.C. 256
208.80.61.0/24 Enertron L.L.C. 256
208.80.62.0/24 Enertron L.L.C. 256
208.80.63.0/24 Enertron L.L.C. 256
CIDR Description IP NUMs(prefix /64)
2001:559:41::/48 Comcast Cable Communications, LLC 65536
2001:559:1ef::/48 Comcast Cable Communications, LLC 65536
2001:559:248::/48 Comcast Cable Communications, LLC 65536
2001:559:261::/48 Comcast Cable Communications, LLC 65536
2001:559:2e7::/48 Comcast Cable Communications, LLC 65536
2001:559:33d::/48 Comcast Cable Communications, LLC 65536
2001:559:3ce::/48 Comcast Cable Communications, LLC 65536
2001:559:450::/48 Comcast Cable Communications, LLC 65536
2001:559:451::/48 Comcast Cable Communications, LLC 65536
2001:559:5c5::/48 Comcast Cable Communications, LLC 65536
2001:559:5c8::/48 Comcast Cable Communications, LLC 65536
2001:559:791::/48 Comcast Cable Communications, LLC 65536
2001:559:8059::/48 Comcast Cable Communications, LLC 65536
2001:559:809e::/48 Comcast Cable Communications, LLC 65536
2001:559:80a3::/48 Comcast Cable Communications, LLC 65536
2001:559:80ac::/48 Comcast Cable Communications, LLC 65536
2001:559:815e::/48 Comcast Cable Communications, LLC 65536
2001:559:817a::/48 Comcast Cable Communications, LLC 65536
2001:559:81ed::/48 Comcast Cable Communications, LLC 65536
2001:559:82b1::/48 Comcast Cable Communications, LLC 65536
2001:559:82bd::/48 Comcast Cable Communications, LLC 65536
2001:559:82d7::/48 Comcast Cable Communications, LLC 65536
2001:559:82f4::/48 Comcast Cable Communications, LLC 65536
2001:559:82f7::/48 Comcast Cable Communications, LLC 65536
2001:559:83e5::/48 Comcast Cable Communications, LLC 65536
2001:559:8441::/48 Comcast Cable Communications, LLC 65536
2001:559:84c0::/48 Comcast Cable Communications, LLC 65536
2001:559:84fb::/48 Comcast Cable Communications, LLC 65536
2001:559:8567::/48 Comcast Cable Communications, LLC 65536
2001:559:860e::/48 Comcast Cable Communications, LLC 65536
2001:559:c134::/48 Comcast Cable Communications, LLC 65536
2001:559:c1a3::/48 Comcast Cable Communications, LLC 65536
2001:559:c1b4::/48 Comcast Cable Communications, LLC 65536
2001:559:c26c::/48 Comcast Cable Communications, LLC 65536
2001:559:c2e7::/48 Comcast Cable Communications, LLC 65536
2001:559:c3c5::/48 Comcast Cable Communications, LLC 65536
2601:400::/40 Comcast Cable Communications, LLC 16777216
2601:400:100::/40 Comcast Cable Communications, LLC 16777216
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS3549 LVLT-3549 - Level 3 Parent, LLC, US United States 35,914,432 85,904,719,872 IPv4 IPv4
AS7922 COMCAST-7922 - Comcast Cable Communications, LLC, US United States 71,425,792 36,318,243,520,512 IPv4 IPv4 IPv6 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 39,296,276 154,906,330,112 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS62611 CEC-AS-NB-4080 - Cutting Edge Computers, INC., US United States 1,024 0 IPv4 IPv4
AS394573 GSFCS - GreenStone Farm Credit Services, US United States 256 0 IPv4 IPv4
AS394890 DEW-AS - Dewpoint Inc, US United States 256 0 IPv4 IPv4
AS12113 DAWN-FOOD-PRODUCTS - Dawn Food Products, Inc., US United States 512 0 IPv4 IPv4
AS14175 HAWORTH, US United States 256 0 IPv4 IPv4
AS14257 EZ-NET - The Iserv Company, LLC, US United States 512 0 IPv4 IPv4
AS54542 K-DATA01 - K-Data Systems, LLC, US United States 1,024 0 IPv4 IPv4
AS396224 NSF-INTERNATIONAL - NSF International, US United States 512 0 IPv4 IPv4
AS14842 BAUD-AS01 - Baudville, Inc., US United States 256 0 IPv4 IPv4
AS46675 GREENVIEWDATA - Greenview Data, US United States 512 0 IPv4 IPv4
AS62728 VGPE-ASN1 - Velocity The Greatest Phone Company Ever, Inc., US United States 2,816 0 IPv4 IPv4
AS63102 MESSA-AS - Michigan Education Special Services Association, US United States 65,536 0 IPv4 IPv4
AS19880 REALCOMPII - REALCOMP II LTD., US United States 1,536 0 IPv4 IPv4
AS46620 WBH-ISC-RO - William Beaumont Hospital, US United States 65,536 0 IPv4 IPv4
AS54178 USAI-NA-01 - Urban Science Applications, Inc., US United States 1,280 0 IPv4 IPv4
AS394004 HURLEY-MEDICAL-ASN - Hurley Medical Center, US United States 256 0 IPv4 IPv4
AS33145 ASN-BETHANYBCS - Bethany Christian Services, US United States 256 0 IPv4 IPv4
AS40262 PANTONE-AS - Pantone Inc., US United States 1,024 0 IPv4 IPv4
AS395614 COL - City of Lansing, US United States 256 0 IPv4 IPv4
AS18727 DNPS - Detroit Newspapers, US United States 512 0 IPv4 IPv4
AS19031 WESCO - CU*Answers, Inc., US United States 2,560 0 IPv4 IPv4
AS19131 LIVESS-01 - Living Essentials, LLC, US United States 512 0 IPv4 IPv4
AS32695 NEXECOMP-INC - NexeComp, Inc., US United States 1,792 0 IPv4 IPv4
AS26696 GIFT-OF-LIFE-MICHIGAN - GIFT OF LIFE MICHIGAN, US United States 256 0 IPv4 IPv4
AS46530 CORPTECH - Corporate Technologies LLC., US United States 5,120 0 IPv4 IPv4
AS54840 UWM - United Wholesale Mortgage, LLC, US United States 1,024 0 IPv4 IPv4
AS62606 SECTOR7LLC - Sector 7, LLC, US United States 768 0 IPv4 IPv4
AS7046 RFC2270-UUNET-CUSTOMER - MCI Communications Services, Inc. d/b/a Verizon Business, US United States 722,944 3,538,944 IPv4 IPv4 IPv6 IPv6
AS11115 ONLINE-TECH-LLC - Online Tech, LLC, US United States 9,216 268,435,456 IPv4 IPv4 IPv6 IPv6
AS21970 PCESYSTEMS - PCE Systems, US United States 512 0 IPv4 IPv4
AS23032 FCS-INDUSTRIES-01 - FCS Industries, US United States 256 0 IPv4 IPv4
AS394502 CTG - Century Technology Group, Inc., US United States 256 0 IPv4 IPv4
AS33414 KENTCOUNTYMI - Kent County Information Systems, US United States 1,024 0 IPv4 IPv4
AS33746 TTEK-AS - TETRA TECH, INC., US United States 256 0 IPv4 IPv4
AS53352 HFHS-ASN - Henry Ford Health System, US United States 65,536 0 IPv4 IPv4
AS64203 LLAMASOFT-1 - LLamasoft, Inc., US United States 256 0 IPv4 IPv4
AS26838 MAGNANET - Magna International Inc., CA Canada 3,840 0 IPv4 IPv4
AS32438 GRO-UCFUSM-1N - Michigan State University Federal Credit Union, US United States 256 0 IPv4 IPv4
AS395779 ARMINTL - ARMSTRONG INTERNATIONAL INC, US United States 256 0 IPv4 IPv4
AS32285 HFCC - Henry Ford College, US United States 256 0 IPv4 IPv4
AS395594 CONSUMERSENERGYCO-ASN - Consumers Energy Company, US United States 1,024 0 IPv4 IPv4
AS397288 MCREY - McNaughton-McKay Electric Company, US United States 1,024 0 IPv4 IPv4
AS12088 NABANCARD - North American Bancard, LLC, US United States 256 0 IPv4 IPv4
AS14787 ASN1GUARD23ATTWINSTAR - Guardian Industries Corp, US United States 1,024 0 IPv4 IPv4
AS19047 AWS-01 - Amazon.com, Inc., US United States 6,656 0 IPv4 IPv4
AS20940 AKAMAI-ASN1 - Akamai International B.V., NL Netherlands 13,770,784 1,108,102,874,880 IPv4 IPv4 IPv6 IPv6
AS54267 LAKE-TRUST-CREDIT-UNION-MULTIHOME-AS-0001 - Lake Trust Credit Union, US United States 256 0 IPv4 IPv4
AS394729 NPIASN - NeoPollard Interactive LLC, US United States 2,304 0 IPv4 IPv4
AS396332 S1-FLINT-DC - SITEONE LANDSCAPE SUPPLY, LLC, US United States 256 0 IPv4 IPv4
AS396911 DPLO-411SSFLT - Diplomat Pharmacy, Inc, US United States 512 0 IPv4 IPv4
AS10915 CQL-AS - CQL Incorporated, US United States 1,024 0 IPv4 IPv4
AS53337 SRGGI-01 - SRG Global, Inc., US United States 256 0 IPv4 IPv4
AS393256 DTE-ASN - DTE Energy Company, US United States 1,024 0 IPv4 IPv4
AS394976 ABACUS - Abacus Data Systems, Inc., US United States 6,144 393,216 IPv4 IPv4 IPv6 IPv6
AS4208 THE-ISERV-COMPANY - The Iserv Company, LLC, US United States 32,256 0 IPv4 IPv4
AS39945 NUSPIRE - Nuspire Communications, US United States 768 0 IPv4 IPv4
AS53775 SEKISUISPI-ASN - Sekisui Polymer Innovations, LLC, US United States 512 0 IPv4 IPv4
AS54946 MH105-METRO-HEALTH-HOSPITAL - Metro Health, US United States 256 0 IPv4 IPv4
AS395234 ANESTHESIALLC - ANESTHESIA BUSINESS CONSULTANTS LLC, US United States 256 0 IPv4 IPv4
AS13683 AUTO-WARES-ASN - Auto-Wares Inc, US United States 256 65,536 IPv4 IPv4
AS15023 LOTUS-CANTON - Lotus International Company, US United States 256 0 IPv4 IPv4
AS17044 TRUENORTHCOMM - True North Communications, US United States 1,792 0 IPv4 IPv4
AS20052 ARBOR - Arbor Networks, Inc., US United States 3,328 65,536 IPv4 IPv4 IPv6 IPv6
AS26856 AUTODATA-SOLUTIONS-COMPANY - Autodata Solutions Company, CA Canada 512 0 IPv4 IPv4
AS31923 THE-AUTO-CLUB-GROUP-ASN-1 - AAA of Michigan, US United States 9,216 0 IPv4 IPv4
AS36525 ALLEGIANCE-HEALTH - ALLEGIANCE HEALTH SERVICES, US United States 512 0 IPv4 IPv4
AS46319 AAM-ASN1 - American Axle and Manufacturing, Inc., US United States 256 0 IPv4 IPv4
AS14010 JACKHENRY - Jack Henry & Associates, Inc., US United States 19,200 0 IPv4 IPv4
AS16939 CARETECH-SOLUTIONS - CARETECH SOLUTIONS INC, US United States 2,048 0 IPv4 IPv4
AS22609 ITAPE - Intertape Polymer Corp, US United States 512 0 IPv4 IPv4
AS26463 MISD-NET - Macomb Intermediate School District, US United States 32,768 0 IPv4 IPv4
AS54119 BOINGO-MDU - Boingo MDU LLC, US United States 29,184 16,777,216 IPv4 IPv4
AS62658 WYAN-AS - City of Wyandotte, US United States 8,960 0 IPv4 IPv4
AS395981 PENSKE-CORPORATE - Penske System Inc, US United States 256 0 IPv4 IPv4
AS398856 WPP-DETROIT - Group M Worldwide, LLC, US United States 256 0 IPv4 IPv4
AS15099 MONROE-COUNTY-MI-PUBLIC-ASN - County of Monroe, US United States 256 0 IPv4 IPv4
AS32477 ONLINE-TECH-LLC2 - Online Tech, LLC, US United States 9,216 4,294,967,296 IPv4 IPv4
AS393673 JDL-AS-1 - SiteOne Landscape Supply, US United States 256 0 IPv4 IPv4
AS397678 RRIS-01 - Red Rock Information Security, LLC, US United States 512 0 IPv4 IPv4
AS397461 DURA-DHQ01 - Dura Automotive Systems LLC, US United States 256 0 IPv4 IPv4
AS13325 STOMI - State of Michigan, DMB-CNOC, US United States 524,544 0 IPv4 IPv4
AS19277 IMAGEMASTER-01 - ImageMaster LLC, US United States 256 0 IPv4 IPv4
AS393499 ONLINE-TECH-LLC3 - Online Tech, LLC, US United States 1,024 0 IPv4 IPv4
AS393663 ACUMENT - Acument Global Technologies, Inc., US United States 512 0 IPv4 IPv4
AS393416 STILES - Stiles Machinery Inc, US United States 256 0 IPv4 IPv4
AS394446 NCATS - Newaygo County Regional Educational Service Agency, US United States 5,376 0 IPv4 IPv4
AS397367 CRANBROOK-01 - Cranbrook Educational Community, US United States 1,536 0 IPv4 IPv4
AS14214 MINACS - Minacs Inc, CA Canada 2,304 0 IPv4 IPv4
AS18529 PLEXUSSYSTEMS - Plexus Systems Inc., US United States 256 0 IPv4 IPv4
AS27287 SECANTNET - SECANT TECHNOLOGIES, US United States 4,096 0 IPv4 IPv4
AS32549 JCISD-1 - Jackson County Intermediate School District, US United States 768 0 IPv4 IPv4
IP Address Domain NUMs Domains
50.200.255.123 6 emergencysvcs.com
ASNumber:       33668
ASName:         CMCS
ASHandle:       AS33668
RegDate:        2005-02-16
Updated:        2021-01-25    
Ref:            https://rdap.arin.net/registry/autnum/33668



OrgName:        Comcast Cable Communications, LLC
OrgId:          CCCS
Address:        1800 Bishops Gate Blvd
City:           Mt Laurel
StateProv:      NJ
PostalCode:     08054
Country:        US
RegDate:        2001-09-18
Updated:        2020-11-18
Ref:            https://rdap.arin.net/registry/entity/CCCS


OrgTechHandle: IC161-ARIN
OrgTechName:   Comcast Cable Communications Inc
OrgTechPhone:  +1-856-317-7200 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/IC161-ARIN

OrgAbuseHandle: NAPO-ARIN
OrgAbuseName:   Network Abuse and Policy Observance
OrgAbusePhone:  +1-888-565-4329 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAPO-ARIN

OrgRoutingHandle: ROUTI25-ARIN
OrgRoutingName:   Routing
OrgRoutingPhone:  +1-856-317-7200 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI25-ARIN