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Autonomous System

AS46887

Crown Castle Fiber LLC

Announced IPs
821,504
CIDR prefixes
511
ASN
AS46887

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

58/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS46887 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
167.244.247.0/24 AS13536, AS46887 2026-09-10 10:55:44
167.244.213.0/24 AS13536, AS46887 2026-09-10 10:55:44
38.147.221.0/24 AS174, AS46887 2026-09-09 11:10:31
144.121.73.0/24 AS7029, AS46887 2026-09-09 11:10:31

Network profile

Source: PeeringDB →
Network type NSP
Geographic scope North America
Peering policy Restrictive
IRR record AS-CCF

Present at 7 internet exchanges: Boston Internet Exchange, Equinix Chicago, Equinix New York, Equinix Ashburn, Equinix Dallas, Equinix Miami, Equinix Los Angeles

AS46887 — global IP footprint

Cities where AS46887 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
9.191.0.0/16 65.5K
0.0%
Crown Castle Fiber LLC US
138.123.0.0/16 65.5K
1.0%
Crown Castle Fiber LLC US Delaware Newark
149.70.0.0/16 65.5K
0.0%
Crown Castle Fiber LLC US New York New York
165.158.0.0/16 65.5K
0.0%
Crown Castle Fiber LLC US
9.179.0.0/17 32.8K
0.0%
Crown Castle Fiber LLC US Florida Miami
158.59.128.0/17 32.8K
0.6%
Crown Castle Fiber LLC US Virginia Arlington
9.179.128.0/18 16.4K
0.0%
Crown Castle Fiber LLC US
131.239.192.0/18 16.4K
17.9%
Crown Castle Fiber LLC US Maryland Baltimore
9.179.192.0/19 8.2K
0.0%
Crown Castle Fiber LLC US
131.239.96.0/19 8.2K
13.9%
Crown Castle Fiber LLC US New York Montgomery
131.239.128.0/19 8.2K
14.8%
Crown Castle Fiber LLC US New York New York
144.121.224.0/19 8.2K
15.1%
Crown Castle Fiber LLC US New York The Bronx
151.181.192.0/19 8.2K
0.1%
Crown Castle Fiber LLC US New York Rochester
160.72.32.0/19 8.2K
0.0%
Crown Castle Fiber LLC US Maryland Baltimore
160.72.64.0/19 8.2K
11.1%
Crown Castle Fiber LLC US New York New York
160.72.128.0/19 8.2K
18.1%
Crown Castle Fiber LLC US New York The Bronx
167.253.160.0/19 8.2K
0.0%
Crown Castle Fiber LLC US
209.160.160.0/19 8.2K
24.6%
Crown Castle Fiber LLC US Florida Fort Lauderdale
9.179.240.0/20 4.1K
0.0%
Crown Castle Fiber LLC US
64.238.128.0/20 4.1K
94.6%
Crown Castle Fiber LLC US Connecticut Storrs
65.254.0.0/20 4.1K
95.0%
Crown Castle Fiber LLC US New York Northport
67.208.176.0/20 4.1K
34.3%
Crown Castle Fiber LLC US Massachusetts Boston
69.195.48.0/20 4.1K
0.0%
Crown Castle Fiber LLC US
72.22.176.0/20 4.1K
28.8%
Crown Castle Fiber LLC US Massachusetts Randolph
76.8.64.0/20 4.1K
20.6%
Crown Castle Fiber LLC US New York New York
131.239.64.0/20 4.1K
10.9%
Crown Castle Fiber LLC US Connecticut Wallingford
131.239.176.0/20 4.1K
15.0%
Crown Castle Fiber LLC US Michigan Detroit
136.223.0.0/20 4.1K
0.0%
Crown Castle Fiber LLC US
144.121.0.0/20 4.1K
23.6%
Crown Castle Fiber LLC US Massachusetts Boston
144.121.160.0/20 4.1K
15.5%
Crown Castle Fiber LLC US Illinois Chicago
144.121.192.0/20 4.1K
13.7%
Crown Castle Fiber LLC US New York Brooklyn
144.121.240.0/20 4.1K
15.7%
Crown Castle Fiber LLC US New York The Bronx
151.181.64.0/20 4.1K
0.8%
Crown Castle Fiber LLC US Pennsylvania Reading
151.181.160.0/20 4.1K
0.4%
Crown Castle Fiber LLC US Massachusetts Boston
160.72.32.0/20 4.1K
15.9%
Crown Castle Fiber LLC US Maryland Baltimore
160.72.112.0/20 4.1K
15.8%
Crown Castle Fiber LLC US New Jersey Passaic
160.72.176.0/20 4.1K
18.8%
Crown Castle Fiber LLC US New Jersey Jersey City
160.72.240.0/20 4.1K
10.2%
Crown Castle Fiber LLC US
169.139.0.0/20 4.1K
0.0%
Crown Castle Fiber LLC US Florida Fort Lauderdale
172.85.32.0/20 4.1K
42.2%
Crown Castle Fiber LLC US New Jersey Newark
184.75.192.0/20 4.1K
33.9%
Crown Castle Fiber LLC US Massachusetts Boston
192.235.16.0/20 4.1K
0.2%
Crown Castle Fiber LLC US New York Schenectady
209.160.240.0/20 4.1K
22.7%
Crown Castle Fiber LLC US California Los Angeles
8.28.48.0/21 2.0K
0.2%
Crown Castle Fiber LLC US Ohio Hamilton
9.179.224.0/21 2.0K
0.0%
Crown Castle Fiber LLC US California El Monte
64.20.160.0/21 2.0K
34.0%
Crown Castle Fiber LLC US New York New York
64.72.88.0/21 2.0K
29.6%
Crown Castle Fiber LLC US New Jersey Emerson
64.238.136.0/21 2.0K
94.4%
Crown Castle Fiber LLC US Massachusetts Quincy
66.206.112.0/21 2.0K
55.6%
Crown Castle Fiber LLC US Texas Spring
67.208.168.0/21 2.0K
7.6%
Crown Castle Fiber LLC US
68.171.192.0/21 2.0K
67.7%
Crown Castle Fiber LLC US Texas Houston
69.64.208.0/21 2.0K
49.3%
Crown Castle Fiber LLC US Connecticut Cheshire
74.113.48.0/21 2.0K
4.9%
Crown Castle Fiber LLC US Indiana Indianapolis
76.8.72.0/21 2.0K
20.3%
Crown Castle Fiber LLC US
97.107.168.0/21 2.0K
4.2%
Crown Castle Fiber LLC US New Jersey Perth Amboy
104.129.72.0/21 2.0K
47.9%
Crown Castle Fiber LLC US New York Central Islip
104.129.80.0/21 2.0K
37.2%
Crown Castle Fiber LLC US Massachusetts Malden
104.207.192.0/21 2.0K
45.0%
Crown Castle Fiber LLC US New Jersey Linden
104.207.208.0/21 2.0K
39.2%
Crown Castle Fiber LLC US New York New York
104.222.104.0/21 2.0K
67.2%
Crown Castle Fiber LLC US Florida Pompano Beach
104.247.32.0/21 2.0K
46.3%
Crown Castle Fiber LLC US New York New York
104.247.48.0/21 2.0K
37.6%
Crown Castle Fiber LLC US New York Larchmont
107.181.16.0/21 2.0K
49.7%
Crown Castle Fiber LLC US New York Lynbrook
131.239.8.0/21 2.0K
20.2%
Crown Castle Fiber LLC US California Pasadena
131.239.40.0/21 2.0K
16.1%
Crown Castle Fiber LLC US New York Rochester
131.239.48.0/21 2.0K
21.7%
Crown Castle Fiber LLC US Connecticut Haddam
131.239.88.0/21 2.0K
13.6%
Crown Castle Fiber LLC US New York New York
131.239.160.0/21 2.0K
7.2%
Crown Castle Fiber LLC US Pennsylvania Philadelphia
144.121.8.0/21 2.0K
23.7%
Crown Castle Fiber LLC US Massachusetts Boston
144.121.16.0/21 2.0K
22.6%
Crown Castle Fiber LLC US Massachusetts Boston
144.121.32.0/21 2.0K
15.9%
Crown Castle Fiber LLC US Massachusetts Worcester
144.121.48.0/21 2.0K
24.0%
Crown Castle Fiber LLC US
144.121.64.0/21 2.0K
19.9%
Crown Castle Fiber LLC US New York New York
144.121.80.0/21 2.0K
23.5%
Crown Castle Fiber LLC US New York New York
144.121.128.0/21 2.0K
15.8%
Crown Castle Fiber LLC US Maryland Chevy Chase
144.121.152.0/21 2.0K
11.5%
Crown Castle Fiber LLC US Pennsylvania Philadelphia
144.121.184.0/21 2.0K
13.6%
Crown Castle Fiber LLC US Indiana Indianapolis
144.121.208.0/21 2.0K
15.5%
Crown Castle Fiber LLC US New Jersey Jersey City
144.121.232.0/21 2.0K
15.2%
Crown Castle Fiber LLC US New York The Bronx
151.181.40.0/21 2.0K
0.9%
Crown Castle Fiber LLC US New York Buffalo
151.181.56.0/21 2.0K
0.4%
Crown Castle Fiber LLC US New York Rochester
151.181.80.0/21 2.0K
0.3%
Crown Castle Fiber LLC US Ohio Cleveland
151.181.224.0/21 2.0K
7.3%
Crown Castle Fiber LLC US New York Buffalo
160.72.0.0/21 2.0K
17.7%
Crown Castle Fiber LLC US California Los Angeles
160.72.56.0/21 2.0K
16.4%
Crown Castle Fiber LLC US Delaware Wilmington
160.72.104.0/21 2.0K
0.0%
Crown Castle Fiber LLC US New York New York
160.72.168.0/21 2.0K
17.8%
Crown Castle Fiber LLC US New York Pelham
160.72.192.0/21 2.0K
18.6%
Crown Castle Fiber LLC US California Los Angeles
160.72.232.0/21 2.0K
11.2%
Crown Castle Fiber LLC US Massachusetts Boston
173.225.56.0/21 2.0K
8.9%
Crown Castle Fiber LLC US New York Ballston Spa
204.9.240.0/21 2.0K
45.1%
Crown Castle Fiber LLC US Florida Pompano Beach
208.99.240.0/21 2.0K
8.9%
Crown Castle Fiber LLC US New York Syracuse
209.148.32.0/21 2.0K
33.4%
Crown Castle Fiber LLC US California Norwalk
209.148.48.0/21 2.0K
15.7%
Crown Castle Fiber LLC US Michigan Royal Oak
209.160.136.0/21 2.0K
25.5%
Crown Castle Fiber LLC US New Jersey Linden
209.160.192.0/21 2.0K
12.5%
Crown Castle Fiber LLC US Florida Fort Lauderdale
209.160.208.0/21 2.0K
29.1%
Crown Castle Fiber LLC US Pennsylvania Conshohocken
209.160.224.0/21 2.0K
14.1%
Crown Castle Fiber LLC US Ohio Cincinnati
216.57.128.0/21 2.0K
52.9%
Crown Castle Fiber LLC US Florida Miami
216.57.144.0/21 2.0K
59.2%
Crown Castle Fiber LLC US Massachusetts Norwood

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS46887 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
144.121.35.0/24 705,066 2026-09-10 06:33:51
8.41.200.0/24 73,276 2026-09-10 10:54:33
9.179.231.0/24 51,198 2026-09-10 10:54:33
158.59.128.0/18 41,904 2026-09-10 10:58:52
158.59.146.0/24 41,886 2026-09-10 10:58:52
158.59.192.0/18 41,882 2026-09-10 10:58:52
144.121.41.0/24 38,898 2026-09-10 10:58:51
9.179.56.0/22 37,317 2026-09-10 10:54:33
192.231.39.0/24 35,932 2026-09-10 10:59:40
162.249.152.0/22 31,703 2026-09-10 10:59:14
131.239.103.0/24 31,641 2026-09-10 10:58:19
131.239.132.0/23 31,598 2026-09-10 10:58:19
208.49.46.0/23 30,927 2026-09-10 10:54:12
192.154.112.0/21 30,875 2026-09-10 10:59:40
216.57.128.0/22 28,895 2026-09-10 10:54:12
168.245.237.0/24 28,718 2026-09-10 10:59:14
131.239.139.0/24 28,718 2026-09-10 10:58:19
168.245.236.0/24 28,702 2026-09-10 10:59:14
160.72.209.0/24 27,984 2026-09-10 10:59:14
76.78.235.0/24 27,687 2026-09-10 10:55:44
160.72.215.0/24 27,576 2026-09-10 10:59:14
207.180.61.0/24 27,148 2026-09-10 10:54:11
208.90.76.0/24 26,839 2026-09-10 10:54:12
131.239.61.0/24 26,265 2026-09-10 10:58:19
209.160.232.0/24 26,109 2026-09-10 10:54:12
104.222.104.0/21 26,065 2026-09-10 10:57:34
104.222.100.0/22 26,042 2026-09-10 10:57:34
9.179.4.0/22 26,040 2026-09-10 10:54:33
9.179.8.0/22 25,981 2026-09-10 10:54:33
64.20.170.0/23 25,976 2026-09-10 10:55:42
9.179.48.0/22 25,915 2026-09-10 10:54:33
169.139.0.0/21 25,872 2026-09-10 10:59:17
68.171.192.0/22 25,871 2026-09-10 10:55:42
169.139.8.0/21 25,849 2026-09-10 10:59:17
169.139.0.0/20 25,834 2026-09-10 10:59:17
131.239.56.0/24 25,754 2026-09-10 10:58:19
76.8.84.0/23 25,737 2026-09-10 10:55:42
76.8.88.0/22 25,729 2026-09-10 10:55:42
104.152.56.0/22 25,729 2026-09-10 10:57:34
104.129.68.0/22 25,628 2026-09-10 10:57:34
131.239.101.0/24 25,473 2026-09-10 10:58:19
131.239.102.0/24 25,465 2026-09-10 10:58:19
131.239.240.0/22 25,454 2026-09-10 10:58:19
131.239.212.0/22 25,276 2026-09-10 10:58:19
151.181.94.0/23 25,190 2026-09-10 10:58:52
198.140.211.0/24 25,184 2026-09-10 10:59:51
160.72.188.0/22 24,969 2026-09-10 10:59:14
169.139.115.0/24 24,955 2026-09-10 10:59:17
66.37.32.0/20 24,865 2026-09-10 10:55:42
170.55.165.0/24 24,807 2026-09-10 10:59:17

Showing top 50 of 818 announced prefixes by sample volume.

Frequently Asked Questions

What is AS46887?

AS46887 is an Autonomous System Number assigned to Crown Castle Fiber LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS46887 announce?

AS46887 announces 821.5K IPv4 addresses distributed across 511 routed CIDR prefixes. The network is registered in United States.

Who operates AS46887?

AS46887 is operated by Crown Castle Fiber LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS46887 registered in?

AS46887 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-10 10:54:06 UTC
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