HomeASN LookupAS54004

AS54004 LIGHTPATH - Cablevision Lightpath LLC

🇺🇸
ARINassigned
Announced Prefixes (BGP)
421total
380 IPv441 IPv6
IPv4 Addresses
Allocated (RIR)123,136
Announced (BGP)579,328
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
200
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2011-08-31

Routing hygiene

Score 39/100 · Medium risk
RPKI ROA coverage
89.5%
17 prefixes RPKI invalid
IRR route objects
75.1%
96 prefixes registered for another origin
Hijack signals
35
17 announced against others' ROAs, 18 own announced by others
Upstreams
5
diversity 40/100
  • Announces 17 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
  • 10% of announced prefixes (44 of 421) have no valid ROA, 17 of them RPKI invalid
  • 11 prefixes registered in IRR route objects for another active network and not authorized by a ROA
  • 25% of announced prefixes (105 of 421) have no IRR route object for this ASN
  • 18 prefixes of this ASN announced by another network against its ROAs

Based on 421 announced prefixes, updated daily (2026-10-26). How the score works · RPKI explained

Announced Prefixes

(BGP)421
|
Prefix
RPKI
IRR
Last Seen
13.141.152.0/22
 Valid--
13.141.156.0/22MOAS
 Valid--
13.141.160.0/20
 Valid--
13.141.176.0/20
 Valid--
13.141.192.0/20
 Valid--
13.141.208.0/20
 Valid--
13.141.224.0/20
 Valid--
13.141.240.0/20
 Valid--
16.220.160.0/19
 Valid
ARINOther IRR
-
16.221.208.0/20
 Valid
ARINOther IRR
-
1-10 of 421
1 / 43

Allocated Prefixes

(RIR)52
Prefix
Country
RIR
Status
23.141.124.0/24🇺🇸 USARINallocated
23.141.132.0/24🇺🇸 USARINallocated
23.142.60.0/24🇺🇸 USARINallocated
23.142.76.0/24🇺🇸 USARINallocated
46.34.4.0/22🇪🇺 EURIPEassigned
46.34.8.0/22🇪🇺 EURIPEassigned
47.19.0.0/16🇺🇸 USARINallocated
69.160.224.0/20🇺🇸 USARINallocated
77.67.36.0/22🇪🇺 EURIPEassigned
80.68.212.0/22🇪🇺 EURIPEassigned
1-10 of 52
1 / 6

All 421 announced prefixes of AS54004 →

Downstream Customers(5)

ASNName
AS1436🇺🇸HACKENSACK-MERIDIAN-HEALTH - Meridian Health System
AS13464🇺🇸CPLP-ASN - Centerbridge Partners, L.P.
AS14299🇺🇸ADP1 - Automatic Data Processing, Inc.
AS397417🇺🇸SCWA - Suffolk County Water Authority
AS402786🇺🇸HC-COMMACK - Heat

BGP Neighbours

(seen in AS paths)

Upstreams (6)

Networks AS54004 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS6128Cablevision Systems325
  • AS6939Hurricane Electric35
  • AS27552TowardEX Technologies International30
  • AS6461Zayo Bandwidth17
  • AS174Cogent Communications12
  • AS1299TWELVE99 Arelion Sweden AB2

Downstreams (100 of 292)

Networks whose own prefixes AS54004 passes on: usually its customers.

  • AS23410Nassau County BOCES133
  • AS54103MOD Mission Critical108
  • AS32531Fordham University53
  • AS30036Mediacom Communications50
  • AS11516Eastern Suffolk BOCES42
  • AS394488Bergen County Vocational Technical School District39
  • AS402020Planisys17
  • AS17119Kampung Communications15
  • AS18593The Goldman Sachs Group15
  • AS397394Gold Coast Broadband14
  • AS23341Fashion Institute Of Technology13
  • AS27370City Of Boston13
  • AS398875The City Of New York13
  • AS17056CipherSpace10
  • AS20398Controlled Networks And Communications Solutions10
  • AS46996New York City Health & Hospitals Corporation10
  • AS11584New York City Health & Hospitals Corporation8
  • AS13652HORIZON BLUE CROSS BLUE SHIELD OF NJ8
  • AS30635&J Associates8
  • AS33570Cloudpath8
  • AS17324Yeshiva University6
  • AS18973TAG Online6
  • AS21886NETRIX IT SERVICES Netrix6
  • AS23329Crown Castle Fiber6
  • AS23484Pace University6
  • AS36861RWJBarnabas Health6
  • AS54316AP GP Operations6
  • AS25808Town Of Concord MA5
  • AS27483The Darby Group5
  • AS36136ALARMNET5
  • AS36378New York Institute Of Technology5
  • AS398465Rackdog5
  • AS13938SS&C Technologies4
  • AS14408Empire International4
  • AS14437C&S WHOLESALE GROCERS4
  • AS15038The Cambridge Incubator4
  • AS15209CommVault Systems4
  • AS18602Paul, Weiss, Rifkind, Wharton & Garrison LLP4
  • AS18794Ramapo College Of New Jersey4
  • AS19796Shubert Organization4
  • AS20306Adelphi University4
  • AS22012NRT4
  • AS26842MFXCHANGE US MFXCHANGE US4
  • AS30011Messer North America4
  • AS54776West Essex Regional School District4
  • AS394169Nassau Community College4
  • AS394625WhiteLabel IT Solutions4
  • AS400423Catholic Health4
  • AS44511199SEIU National Benefit Funds3
  • AS4906Frontline Communications3
  • AS11452Mount Sinai School Of Medicine3
  • AS13821AllianceBernstein L.P3
  • AS16481Babson College3
  • AS18948New York Medical College3
  • AS21835Scarsdale Security Systems3
  • AS22077Renaissance Technologies3
  • AS22399Commerzbank New York Branch3
  • AS26478Novartis Pharmaceuticals3
  • AS32430Bergen County Prosecutors Office3
  • AS32720Canon USA3
  • AS36161County Of Westchester3
  • AS36224HCL AMERICA3
  • AS36240Communications Unlimited3
  • AS36667Phibro Animal Health Corporation3
  • AS40321Emigrant Bank3
  • AS54323Maimonides Medical Center3
  • AS55209Hackensack University Medical Center3
  • AS62672Streamwide3
  • AS63125Cablevision Lightpath3
  • AS399856Pratt Institute3
  • AS1632SONIC HEALTHCARE USA2
  • AS10985Curtis Instruments2
  • AS11737Nu Age Managed Services2
  • AS11817Stafford Associates Computer Specialists2
  • AS13462Institute Of Electrical And Electronics Engineers2
  • AS13581SHI International2
  • AS14864NatWest Markets Securities2
  • AS17278Iona University2
  • AS18559CANIK USA2
  • AS19111The Nature'S Bounty2
  • AS19449Concurrent Technologies2
  • AS19670Custom Computer Specialists2
  • AS19787First Eagle Investment Management2
  • AS19961Star Gas Partners, LP2
  • AS20406Braslink Network2
  • AS21504The Bessemer Group2
  • AS22775Moore Capital Management2
  • AS25936MJHS Health System2
  • AS26239Atlas Air2
  • AS26454Henry Schein2
  • AS26700FORTRESS INVESTMENT GROUP2
  • AS29457OPTIONS Technology2
  • AS29949Broadridge Financial Solutions2
  • AS30346Sumitomo Mitsui Banking Corporation2
  • AS32696Tri State Voice & Data2
  • AS33141NOC SERVICES2
  • AS33703Hofstra University2
  • AS36466Cohere Communications2
  • AS39960Barnes & Noble2
  • AS40042Suffolk County Government2

Transfer History

Registry transfers of AS54004 between organisations.

1
ASPA
No ASPA0 upstreams, 5 downstreams
Listed as Upstream Provider by
5 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

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API
Open
GEThttps://api.ipctl.io/v1/asn/54004

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/54004" | jq