AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
CMCS 147 0 1,832,448 0 United States
1,832,448 IPv4 Addresses
CIDR Description IP Num
23.24.128.0/19 Comcast Cable Communications, LLC 8192
23.31.64.0/19 GREASE MONKEY INTL (C03251272) 8192
23.70.32.0/22 Comcast Cable Communications, LLC (C07473624) 1024
23.71.12.0/22 Comcast Cable Communications, LLC (C07238885) 1024
23.216.80.0/20 Akamai Technologies, Inc. 4096
24.8.0.0/15 Comcast Cable Communications (C00703333) 131072
50.76.128.0/20 Comcast Cable Communications, LLC (CCCS) 4096
50.78.80.0/21 DAVID TAYLOR (C03304771) 2048
50.78.192.0/20 NET-CENTRIC DESIGN PROFE (C03304764) 4096
50.194.128.0/19 WELD COUNTY PUBLIC TRUST (C03239167) 8192
50.198.192.0/19 Comcast Cable Communications, LLC (CCCS) 8192
50.206.244.0/24 Comcast Cable Communications, LLC 256
50.208.0.0/19 Comcast Cable Communications, LLC (CCCS) 8192
50.209.224.0/19 Comcast Cable Communications, LLC (CCCS) 8192
50.211.224.0/19 Comcast Cable Communications, LLC (CCCS) 8192
50.227.142.0/24 Comcast Cable Communications, LLC 256
50.242.128.0/20 Comcast Cable Communications, LLC 4096
50.243.128.0/19 Comcast Cable Communications, LLC 8192
50.246.192.0/19 Comcast Cable Communications, LLC 8192
50.250.128.0/19 Comcast Cable Communications, LLC (CCCS) 8192
50.253.96.0/19 Comcast Cable Communications, LLC 8192
67.161.128.0/19 Comcast Cable Communications, Inc. (C00500661) 8192
67.161.192.0/20 Comcast Cable Communications, Inc. (C00500173) 4096
67.162.128.0/19 Comcast Cable Communications, Inc. (C00500648) 8192
67.164.160.0/19 Comcast Cable Communications, Inc. (C00500642) 8192
67.164.224.0/22 Comcast Cable Communications, IP Services (C00612397) 1024
67.164.252.0/22 Comcast Cable Communications, IP Services (C00612403) 1024
67.165.192.0/18 Comcast Cable Communications, IP Services (C00612400) 16384
67.166.0.0/18 Comcast Cable Communications, IP Services (C00612401) 16384
67.172.128.0/19 Comcast Cable Communications, IP Services (C00681400) 8192
67.173.224.0/19 Comcast Cable Communications, IP Services (C00743365) 8192
67.174.96.0/19 Comcast Cable Communications, IP Services (C00743367) 8192
67.174.176.0/20 Comcast Cable Communications, Inc. (C01135096) 4096
67.176.0.0/17 Comcast Cable Communications, Inc (C00934634) 32768
67.177.192.0/18 Comcast Cable Communications, Inc (C00934627) 16384
67.178.18.0/23 Comcast Cable Communications, Inc (C00934628) 512
67.178.69.0/24 Comcast Cable Communications, Inc (C00934628) 256
67.190.0.0/18 Comcast Cable Communications, Inc. (C01136186) 16384
67.190.64.0/18 Comcast Cable Communications, Inc. (C01136185) 16384
67.190.128.0/18 Comcast Cable Communications, Inc. (C01136184) 16384
68.85.89.0/24 Comcast Cable Communications, LLC 256
68.85.107.0/24 Comcast Cable Communications, Inc. (C00491539) 256
68.85.220.0/23 Comcast Cable Communications, Inc. (C01616542) 512
68.86.19.0/24 Comcast Cable Communications, Inc. (C01616570) 256
68.86.103.0/24 Comcast Cable Communications, Inc. (C01616566) 256
68.86.104.0/23 Comcast Cable Communications, Inc. (C01616566) 512
68.86.128.0/23 Comcast Cable Communications, Inc. (C01616569) 512
68.86.179.0/24 Comcast Cable Communications, Inc. (C01616569) 256
68.87.70.0/24 Comcast Cable Communications, Inc. (C01616562) 256
68.87.247.0/24 Comcast Cable Communications, Inc. (C01520062) 256
69.139.228.0/24 Comcast Cable Communications, LLC (CCCS) 256
69.241.22.0/24 Comcast Cable Communications, Inc. (C01623945) 256
69.241.125.0/24 Comcast Cable Communications, Inc. (C01543874) 256
70.89.160.0/20 Comcast Cable Communications, LLC 4096
70.90.112.0/21 Comcast Cable Communications, LLC 2048
70.91.168.0/21 Comcast Cable Communications, LLC 2048
71.56.192.0/18 Comcast Cable Communications Holdings, Inc (C02607903) 16384
71.196.128.0/17 Comcast Cable Communications, IP Services (C01246429) 32768
71.205.0.0/16 Comcast Cable Communications, Inc. (C05582164) 65536
71.229.128.0/17 Comcast Cable Communications, Inc. (C01336520) 32768
71.237.0.0/17 Comcast Cable Communications, Inc. (C01417138) 32768
73.3.128.0/17 Comcast IP Services, L.L.C. (C05255420) 32768
73.14.0.0/16 Comcast IP Services, L.L.C. (C05332801) 65536
73.34.0.0/16 Comcast IP Services, L.L.C. (C04999879) 65536
73.78.0.0/16 Comcast IP Services, L.L.C. (C05967120) 65536
73.95.0.0/16 Comcast IP Services, L.L.C. (C06037924) 65536
73.153.0.0/16 Comcast Cable Communications, LLC 65536
73.169.0.0/17 Comcast IP Services, L.L.C. (C05191923) 32768
73.181.0.0/17 Comcast IP Services, L.L.C. (C04882281) 32768
73.203.0.0/17 Comcast IP Services, L.L.C. (C05515211) 32768
73.217.0.0/17 Comcast IP Services, L.L.C. (C05555853) 32768
73.229.0.0/16 Comcast Cable Communications, LLC 65536
73.243.0.0/16 Comcast IP Services, L.L.C. (C05900722) 65536
74.92.208.0/20 Comcast Cable Communications, LLC (CCCS) 4096
74.93.224.0/20 Comcast Cable Communications, LLC (CCCS) 4096
74.95.112.0/21 Comcast Cable Communications, LLC (CCCS) 2048
75.70.0.0/15 Comcast Cable Communications Holdings, Inc (C02610777) 131072
75.145.112.0/20 Comcast Cable Communications, LLC (CCCS) 4096
75.148.32.0/20 Comcast Cable Communications, LLC (CCCS) 4096
75.148.112.0/20 Comcast Cable Communications, LLC 4096
75.151.80.0/20 Comcast Cable Communications, LLC 4096
76.25.0.0/16 Comcast Cable Communications, Inc. (C01618404) 65536
76.96.47.0/24 Comcast Cable Communications, Inc. (C01616564) 256
76.120.0.0/17 Comcast Cable Communications, Inc. (C01718599) 32768
96.66.64.0/19 Comcast Cable Communications, LLC (CCCS) 8192
96.69.128.0/18 Comcast Cable Communications, LLC (CCCS) 16384
96.75.96.0/19 Comcast Cable Communications, LLC 8192
96.76.160.0/20 Comcast Cable Communications, LLC 4096
96.78.0.0/19 Comcast Cable Communications, LLC 8192
96.79.208.0/21 Comcast Cable Communications, LLC 2048
96.79.232.0/21 Comcast Cable Communications, LLC 2048
96.81.32.0/19 Comcast Cable Communications, LLC (CCCS) 8192
96.84.240.0/20 Comcast Cable Communications, LLC 4096
96.87.32.0/19 Comcast Cable Communications, LLC 8192
96.88.64.0/19 Comcast Cable Communications, LLC (CCCS) 8192
96.90.160.0/19 Comcast Cable Communications, LLC (CCCS) 8192
96.93.192.0/19 Comcast Cable Communications, LLC 8192
96.96.32.0/21 Comcast Cable Communications, LLC 2048
96.108.138.0/24 Comcast Cable Communications, LLC 256
96.108.139.0/24 Comcast Cable Communications, LLC 256
96.108.194.0/23 Comcast Cable Communications, LLC 512
96.108.221.0/24 Comcast Cable Communications, LLC 256
96.109.80.0/24 Comcast Cable Communications, LLC 256
96.110.0.0/24 Comcast Cable Communications, LLC 256
96.110.65.0/24 Comcast Cable Communications, LLC 256
96.110.149.0/24 Comcast Cable Communications, LLC 256
96.110.194.0/23 Comcast Cable Communications, LLC 512
96.110.242.0/23 Comcast Cable Communications, LLC 512
96.110.246.0/23 Comcast Cable Communications, LLC 512
96.113.90.0/23 Comcast Cable Communications, LLC 512
96.113.180.0/22 Comcast Cable Communications, LLC 1024
96.114.69.0/24 Comcast Cable Communications, LLC 256
98.245.0.0/16 Comcast Cable Communications, Inc. (C01941713) 65536
104.86.96.0/22 Akamai Technologies, Inc. 1024
107.2.128.0/17 Comcast Cable Communications, Inc. (C02709291) 32768
139.181.28.0/24 Mentor Graphics Corporation 256
157.240.131.0/24 Facebook, Inc. 256
157.240.136.0/24 Facebook, Inc. 256
162.151.15.0/24 Comcast Cable Communications, LLC 256
162.151.38.0/24 Comcast Cable Communications, LLC 256
162.151.50.0/23 Comcast Cable Communications, LLC 512
162.151.229.0/24 Comcast Cable Communications, LLC 256
172.244.1.0/24 Comcast Cable Communications, LLC 256
172.244.24.0/24 Comcast Cable Communications, LLC 256
172.244.49.0/24 Comcast Cable Communications, LLC 256
172.244.56.0/24 Comcast Cable Communications, LLC 256
172.244.73.0/24 Comcast Cable Communications, LLC (C04632799) 256
172.244.88.0/24 Comcast Cable Communications, LLC (C04632799) 256
172.244.105.0/24 Comcast Cable Communications, LLC (C04632799) 256
172.244.119.0/24 Comcast Cable Communications, LLC (C04632799) 256
172.244.135.0/24 Comcast Cable Communications, LLC 256
172.244.164.0/22 Comcast Cable Communications, LLC (C06477971) 1024
173.8.224.0/19 Comcast Cable Communications, LLC 8192
173.14.0.0/19 Comcast Cable Communications, LLC (CCCS) 8192
173.160.32.0/19 Comcast Cable Communications, LLC (CCCS) 8192
173.164.32.0/19 Comcast Cable Communications, LLC 8192
174.51.0.0/16 Comcast Cable Communications, Inc. (C02205559) 65536
184.25.204.0/24 Akamai Technologies, Inc. 256
184.25.206.0/23 Akamai Technologies, Inc. 512
184.85.192.0/20 Akamai Technologies, Inc. 4096
184.123.128.0/18 Comcast Cable Communications, LLC 16384
192.34.35.0/24 MMJ Group 256
192.92.99.0/24 DMS Design 256
192.153.23.0/24 Pikes Peak Library District 256
192.234.211.0/24 Denver Seminary 256
192.234.212.0/24 Denver Seminary 256
204.228.81.0/24 County of Grand, East Grand School District #2 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 39,529,916 124,574,040,064 IPv4 IPv4
AS7922 COMCAST-7922, US United States 71,163,392 36,318,243,520,512 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS53454 FULLDUPLEX-DEN - Full Duplex Inc, US United States 4,608 4,294,967,296 IPv4 IPv4
AS393776 BSTG - Braxton Technologies, LLC, US United States 768 268,435,456 IPv4 IPv4
AS10844 VASTNET - Vastnet Corp, US United States 4,096 0 IPv4 IPv4
AS23458 DHH-AUTHORITY - Denver Health and Hospital Authority, US United States 1,280 0 IPv4 IPv4
AS36289 VALORCHRISTIANHIGHSCHOOL-01 - Valor Christian High School, US United States 256 0 IPv4 IPv4
AS36551 COMPASSION-INTL-GMC1 - Compassion International, Inc., US United States 512 0 IPv4 IPv4
AS393696 NBB - New Belgium Brewing Company, US United States 512 0 IPv4 IPv4
AS396538 NORTHSITE-DATA - Northsite Data, LLC, US United States 512 0 IPv4 IPv4
AS10441 CH2M - CH2M HILL, US United States 132,096 0 IPv4 IPv4
AS30620 CO-DATACENTER - APPLIED SYSTEMS, INC, US United States 512 0 IPv4 IPv4
AS31904 NCWCD-80513 - Northern Water, US United States 256 0 IPv4 IPv4
AS32062 ARMSTRONGWORLD-01 - Armstrong World Industries, Inc., US United States 2,816 0 IPv4 IPv4
AS32642 NICMAN - NICMAN GROUP LLC, US United States 256 0 IPv4 IPv4
AS7832 PCISYS - WW/Precision Communication, US United States 14,336 0 IPv4 IPv4
AS17294 CARL-CORPORATION - CARL Corporation, US United States 768 0 IPv4 IPv4
AS22658 EARTHNET - Earthnet, Inc., US United States 12,288 0 IPv4 IPv4
AS47090 SCLHS-47090 - SCL Health Front Range Inc., US United States 65,536 0 IPv4 IPv4
AS393891 NUTRIEN, CA Canada 1,280 983,040 IPv4 IPv4
AS394841 CBKASN - CoBank, US United States 4,096 0 IPv4 IPv4
AS397571 PLEXUSSYSTEMS-DV - Plex Systems, Inc., US United States 256 0 IPv4 IPv4
AS18669 BSEC-CA-1 - Bal Seal Engineering Co. Inc., US United States 512 0 IPv4 IPv4
AS19684 VDC-ASN-01 - Viriton, LLC, US United States 256 0 IPv4 IPv4
AS393604 YMCAROCKIES-ASN - YMCA of the Rockies, US United States 768 0 IPv4 IPv4
AS395980 COMCAST-D - Comcast Cable Communications, LLC, US United States 256 0 IPv4 IPv4
AS397486 COMMERCECITY-NET - City of Commerce City, US United States 256 0 IPv4 IPv4
AS15071 BAX-BGP - BAX GLOBAL, US United States 2,816 0 IPv4 IPv4
AS394757 ISS-164 - INTELLIGENT SOFTWARE SOLUTIONS, INC, US United States 256 0 IPv4 IPv4
AS17307 VIRTELA-1 - Virtela Technology Services Incorporated, US United States 49,152 0 IPv4 IPv4
AS31902 OTS - Open Technology Solutions, LLC, US United States 1,088 0 IPv4 IPv4
AS13736 FACTUAL-DATA - Factual Data Corp, US United States 1,024 65,536 IPv4 IPv4
AS46311 HDNETLLC-ASN01 - AXStv - HDNet - HDNet Movies, US United States 256 0 IPv4 IPv4
AS393643 GLOBUSGVI - GlobusFamily, US United States 512 0 IPv4 IPv4
AS395581 SIMSMM-US-INET-01 - Metal Management, Inc., US United States 1,024 0 IPv4 IPv4
AS23409 AS-FOFCOS - Focus on the Family, US United States 768 0 IPv4 IPv4
AS40952 MREL-3-ASN - Mid-continent Research for Education and Learning, US United States 256 0 IPv4 IPv4
AS395566 OMNI - Orbital Media Networks, Inc., US United States 2,048 0 IPv4 IPv4
AS396344 AURORA-PUBLIC-SCHOOLS-ASN - Aurora Public Schools, US United States 768 0 IPv4 IPv4
AS14934 UNAVC-AS - UNAVCO, US United States 512 0 IPv4 IPv4
AS26399 BROADMOOR - Broadmoor Hotel Inc, US United States 1,024 0 IPv4 IPv4
AS40284 GSCBN - Glenwood Springs Community Broadband Network, US United States 3,072 0 IPv4 IPv4
AS53571 PCC-CORP - PRECISION CASTPARTS CORP, US United States 2,560 0 IPv4 IPv4
AS14932 ISC, US United States 768 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS23290 ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County, US United States 1,024 0 IPv4 IPv4
AS30532 3310-617INTERNET - Healthcare Realty Trust, Inc., US United States 768 0 IPv4 IPv4
AS31079 LGI - Liberty Global B.V., NL Netherlands 256 65,536 IPv4 IPv4 IPv6 IPv6
AS32535 GAYLORD-ROCKIES-01BGPFO - Gaylord Rockies Resort & Convention Center, US United States 1,024 0 IPv4 IPv4
AS13524 ARROW-ELECTRONICS - Arrow Electronics, US United States 3,840 0 IPv4 IPv4
AS30136 AD12 - Adams 12, US United States 8,192 0 IPv4 IPv4
AS54384 IREA-ASN - The Intermountain Rural Electric Association, US United States 256 0 IPv4 IPv4
AS63224 MARKWEST-ENERGY-AS - MarkWest Energy Partners LP, US United States 512 0 IPv4 IPv4
AS22024 SPLUNK-WEST - Splunk, US United States 1,024 0 IPv4 IPv4
AS53983 CORKAT-DATA-SOLUTIONS - CorKat Data Solutions, LLC, US United States 1,536 0 IPv4 IPv4
AS54053 REALOGY-DDC - Realogy Group LLC, US United States 4,096 0 IPv4 IPv4
AS395302 ADAMS-COUNTY-COLORADO - Adams County, Colorado, US United States 256 0 IPv4 IPv4
AS11091 SCHRYVER-MEDICAL - Schryver Medical Sales and Marketing, Inc., US United States 256 0 IPv4 IPv4
AS20381 CABLELABS-LV - Cable Television Laboratories, Inc., US United States 1,024 131,072 IPv4 IPv4
AS54493 ASPEN-VALLEY-HOSPITAL - Aspen Valley Hospital, US United States 256 0 IPv4 IPv4
AS26450 CTDI-WC - CTDI, US United States 256 16,777,216 IPv6 IPv6
AS11200 REGISU - Regis University, US United States 512 0 IPv4 IPv4
AS13906 3N-GLOBAL - Everbridge, Inc, US United States 512 0 IPv4 IPv4
AS19105 FIRSTBANK, US United States 1,280 0 IPv4 IPv4
AS29711 CENTURA-HEALTH - Centura Health Corporation, US United States 512 0 IPv4 IPv4
AS397024 AMGNATIONAL - AMG National Trust Bank, US United States 256 0 IPv4 IPv4
IP Address Domain NUMs Domains
23.24.128.154 2 columbineprint.com
23.24.128.245 1 valpakden.com
23.24.129.73 1 remote.abscolorado.com
23.24.129.91 2 themediacenter.com
23.24.129.92 28 bryandehn.com
23.24.129.217 1 r2.ceavco.com
23.24.130.141 2 benderlang.com
23.24.131.5 2 tbgm.com
23.24.131.45 7 camera.paravion.com
23.24.131.68 2 madevteam.com
ASNumber:       33652
ASName:         CMCS
ASHandle:       AS33652
RegDate:        2005-02-16
Updated:        2016-08-31    
Ref:            https://rdap.arin.net/registry/autnum/33652


Comcast Cable Communications, LLC (CCCS)


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

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