HomeASN LookupAS46887

AS46887 CROWNCASTLE-AS46887 - Crown Castle Fiber LLC

🇺🇸
ARINassigned
Announced Prefixes (BGP)
1,079total
817 IPv4262 IPv6
IPv4 Addresses
Allocated (RIR)671,744
Announced (BGP)1.4M
IPv6 Addresses
Allocated (RIR)3.9×10²⁹
Announced (BGP)4.3×10²⁹
Prefix Limit (IPv4)
2,000
Prefix Limit (IPv6)
1,000
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2009-04-13

Routing hygiene

Score 41/100 · Medium risk
RPKI ROA coverage
0.5%
no RPKI invalid prefixes
IRR route objects
96%
38 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 4/100
  • 100% of announced prefixes (1074 of 1079) have no valid ROA
  • Routes concentrated on one upstream (98% of routes)

Based on 1,079 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)1,000 of 1,079
|
Prefix
RPKI
IRR
Last Seen
8.11.166.0/24
No ROA
Other IRR
-
8.28.48.0/21
No ROA
Other IRR
-
8.28.48.0/24
No ROA
Other IRR
-
8.28.53.0/24
No ROA
Other IRR
-
8.28.54.0/23
No ROA
Other IRR
-
8.28.54.0/24
No ROA
Other IRR
-
8.29.208.0/21
No ROA--
8.29.210.0/23
No ROA
Other IRR
-
8.29.210.0/24
No ROA
Other IRR
-
8.29.211.0/24
No ROA
Other IRR
-
1-10 of 1,000
1 / 100

Allocated Prefixes

(RIR)68
Prefix
Country
RIR
Status
9.179.0.0/16🇺🇸 USARINallocated
9.191.0.0/16🇺🇸 USARINallocated
64.72.64.0/19🇺🇸 USARINallocated
66.37.32.0/20🇺🇸 USARINallocated
66.206.112.0/20🇺🇸 USARINallocated
67.208.160.0/19🇺🇸 USARINallocated
69.46.224.0/20🇺🇸 USARINallocated
69.195.32.0/19🇺🇸 USARINallocated
72.22.160.0/19🇺🇸 USARINallocated
74.113.48.0/21🇺🇸 USARINallocated
1-10 of 68
1 / 7

All 1,079 announced prefixes of AS46887 →

Downstream Customers(10)

ASNName
AS1436🇺🇸HACKENSACK-MERIDIAN-HEALTH - Meridian Health System
AS11185🇺🇸DREAMHACK - DreamHack Inc
AS13464🇺🇸CPLP-ASN - Centerbridge Partners, L.P.
AS27421🇺🇸APPLAUSEMA - Applause
AS30685🇺🇸KITS-AKR-OH-DC1 - KIEHL IT SERVICES, LLC
AS32554🇺🇸MCIU - Montgomery County Intermediate Unit
AS53922🇺🇸THRIVE-C1 - Thrive Operations, LLC
AS394712🇺🇸NYSOSC - New York State Office of the State Comptroller
AS397417🇺🇸SCWA - Suffolk County Water Authority
AS402018🇺🇸CONCENTRATE-01 - Concentrate AI, Inc.

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS46887 hands its own prefixes to: transit providers, or peers at an exchange.

Downstreams (100 of 918)

Networks whose own prefixes AS46887 passes on: usually its customers.

  • AS36352HostPapa1,777
  • AS23410Nassau County BOCES179
  • AS33132Crown Castle Fiber75
  • AS395748NetSpeed62
  • AS11123Ultimate Internet Access47
  • AS27609USC University Hospital45
  • AS40021Contabo44
  • AS32531Fordham University38
  • AS6620AMA Communications37
  • AS22006PRONSS36
  • AS397115Electric Boat Corporation32
  • AS20442Yale New Haven Health Services Corporation30
  • AS7227KPMG LLP26
  • AS21704New York City Board Of Education24
  • AS19693Centrilogic23
  • AS22644Thomas Jefferson University Hospitals22
  • AS395383Cologuard22
  • AS26854New York State20
  • AS6646Aetna19
  • AS26793ICS Advanced Technologies18
  • AS3360DXC US Latin America Corporation17
  • AS4906Frontline Communications17
  • AS11188LOS ANGELES COUNTY INTERNAL SERVICESDIVISION17
  • AS27506Crown Castle Fiber17
  • AS17088Currenex16
  • AS3719State Of Connecticut Judicial Branch15
  • AS11042NETWORK TRANSIT HOLDINGS15
  • AS54253Oracle Corporation15
  • AS11790Random House14
  • AS32457City Of Houston13
  • AS398816Flume13
  • AS11516Eastern Suffolk BOCES12
  • AS32415C312
  • AS40154Virtual Radiologic Corporation12
  • AS2134GSVNET Santander Global Technology And Operations, S.L11
  • AS11402Charlotte Colocation Center11
  • AS22753Red Hat11
  • AS31822City University Of New York11
  • AS18522Yum! Brands10
  • AS31942HyperFiber10
  • AS17116B & H Foto & Electronics9
  • AS17270New York State Teachers' Retirement System9
  • AS19537Upper Arlington City School District9
  • AS25808Town Of Concord MA9
  • AS26881IPR International9
  • AS33545Bard College9
  • AS6372DCANet8
  • AS13588Paychex8
  • AS14669Convergeone Unified Technology Solutions8
  • AS19011Iteris8
  • AS19398Tenet HealthSystem Medical8
  • AS19428Phillips 66 Company8
  • AS25611North Shore Long Island Jewish Health System8
  • AS26381HSBC Technology & Services (USA)8
  • AS29825Illinois Institute Of Technology8
  • AS32906FACTORY MUTUAL INSURANCE COMPANY8
  • AS36136ALARMNET8
  • AS36373Community Hospitals, Indianapolis8
  • AS54045Wavetech Systems8
  • AS54294ERIE COMMUNITY COLLEGE8
  • AS397472US NEW ERA INTERNET8
  • AS398580Queens University Of Charlotte8
  • AS3576Hodgson Russ LLP7
  • AS3783Allegheny Intermediate Unit7
  • AS4511University Of Miami7
  • AS17035NBCUniversal7
  • AS19236Steelcase7
  • AS26057Mediaocean7
  • AS27353Indiana University Health7
  • AS33177Kaleida Health7
  • AS53352Henry Ford Health System7
  • AS394700The School District Of Palm Beach County7
  • AS394898H5 Data Centers7
  • AS397986Pennsylvania Convention Center Authority7
  • AS398059State University New York Purchase College7
  • AS400097National Wi Fi7
  • AS2641The Scripps Research Institute6
  • AS10558Biola University6
  • AS11817Stafford Associates Computer Specialists6
  • AS12099OAKWOOD HEALTHCARE6
  • AS17144Microsoft Corporation6
  • AS19790Aspire Broadband6
  • AS22418Cologuard6
  • AS23339Marymount University6
  • AS23484Pace University6
  • AS30012Universal Music Group6
  • AS30513DYNAMIC INTERNET6
  • AS31812Palm Beach County Sheriff'S Office6
  • AS33227Blue Bridge Networks6
  • AS36812Master Lock Company6
  • AS39960Barnes & Noble6
  • AS53956NEFCOM COMMUNICATIONS Northeast Florida Long Distance6
  • AS54036Clean Harbors Environmental Services6
  • AS54576RESTORE ASN 54576 FOR HOAG MEMORIAL HOSPITAL Hoag Memorial Hospital Presbyterian6
  • AS395652County Of Bergen6
  • AS397720Novus Insight6
  • AS398875The City Of New York6
  • AS399220Finger Lakes Communications Group6
  • AS1932Consolidated Edison . Of New York5
  • AS5080Aramco5

Other adjacent networks (6)

Adjacent to AS46887 in the transit part of AS paths: peers, providers or customers.

  • AS11039The George Washington University221
  • AS1299TWELVE99 Arelion Sweden AB7
  • AS18839Fisher Scientific3
  • AS22694NBCUniversal2
  • AS397523NJSDA1
  • AS401025Excel Orthopaedic Specialists1

Transfer History

Registry transfers of AS46887 between organisations.

3
ASPA
No ASPA0 upstreams, 10 downstreams
Listed as Upstream Provider by
10 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/46887

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

curl -s "https://api.ipctl.io/v1/asn/46887" | jq