216.57.136.0/21

AS46887 · Crown Castle Fiber LLC

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Summary

Country	United States
Domain	crowncastle.com
ASN	AS46887
Parent Range	216.57.128.0/19
Registry	ARIN
ID	CROWNCASTLE-216-57-128-0

WHOIS Details

NetHandle:      NET-216-57-128-0-1
OrgID:          CCFL-10
Parent:         NET-216-0-0-0-0
NetName:        CROWNCASTLE-216-57-128-0
NetRange:       216.57.128.0 - 216.57.159.255
NetType:        allocation
RegDate:        2000-06-07
Updated:        2024-02-29
Source:         ARIN


OrgID:          CCFL-10
OrgName:        Crown Castle Fiber LLC
CanAllocate:    
Street:         8020 Katy Freeway
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77024
Comment:        https://www.crowncastle.com/
RegDate:        2023-07-12
Updated:        2023-11-07
OrgAdminHandle: CCIA3-ARIN
OrgTechHandle:  CCIA3-ARIN
OrgAbuseHandle: CCAR-ARIN
OrgNOCHandle:   CCNOC3-ARIN
Source:         ARIN


POCHandle:      CCIA3-ARIN
IsRole:         Y
LastName:       Crown Castle IP Admin
FirstName:      
Street:         8020 Katy Freeway
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77024
RegDate:        2023-06-14
Updated:        2025-06-18
OfficePhone:    +1-855-933-4237
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CCNOC3-ARIN
IsRole:         Y
LastName:       Crown Castle Network Operations Center
FirstName:      
Street:         8020 Katy Freeway
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77024
RegDate:        2023-06-14
Updated:        2025-06-16
OfficePhone:    +1-855-933-4237
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CCAR-ARIN
IsRole:         Y
LastName:       Crown Castle Abuse Reports
FirstName:      
Street:         8020 Katy Freeway
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77024
RegDate:        2023-06-14
Updated:        2025-06-16
OfficePhone:    +1-855-933-4237
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 216.57.136.0/21

Range	ASN	Company	Num of IPs
216.57.128.0/19	AS46887	Crown Castle Fiber LLC	8,192

BGP prefixes that are contained by 216.57.136.0/21

Range	ASN	Company	Num of IPs
216.57.140.0/24	AS46887	IQ Machines LLC	256
216.57.141.0/24	AS46887	Dean College	256
216.57.143.0/24	AS33486	Alkermes, Inc.	256
216.57.142.0/24	AS395382	Commonwealth Financial Network -	256

Nearby Ranges

BGP prefixes that overlap with 216.57.0.0/16

Range	ASN	Company	Num of IPs
216.57.0.0/18	AS16509	Amazon.com, Inc.	16,384
216.57.128.0/19	AS46887	Crown Castle Fiber LLC	8,192
216.57.192.0/19	AS6295	Lunavi, Inc.	8,192
216.57.64.0/20	AS11191	Cal.net, Inc.	4,096
216.57.160.0/20	AS32444	Anthem Broadband	4,096
216.57.176.0/20	AS62969	ABC Allen Business Communications Ltd	4,096
216.57.224.0/20	AS7258	Webhero, Inc.	4,096
216.57.240.0/20	AS7795	Mary Baldwin College	4,096
216.57.124.0/22	AS26082	Cloud Alliance, LLC	1,024
216.57.122.0/23	AS26082	Cloud Alliance, LLC	512
216.57.142.0/24	AS395382	Commonwealth Financial Network -	256
216.57.158.0/24	AS46326	Panagora	256
216.57.113.0/24	AS19704	Howard Center, Inc.	256
216.57.140.0/24	AS46887	IQ Machines LLC	256
216.57.141.0/24	AS46887	Dean College	256
216.57.150.0/24	AS46887	Cramer Productions	256
216.57.154.0/24	AS30140	Boston Properties	256
216.57.120.0/24	AS32466	HOME SECURITY AND MANAGEMENT CO.	256
216.57.112.0/24	AS11350	NorthWestern Medical Center	256
216.57.143.0/24	AS33486	Alkermes, Inc.	256

Hosted domains

There are 6 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
216.57.138.210	bpmstandardsgroup.org	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

162 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
216.57.136.65	AS46887 Crown Castle Fiber LLC	`5.45ms` from Dallas, US
216.57.138.228	AS46887 Crown Castle Fiber LLC	`1.84ms` from Boston, US
216.57.137.242	AS46887 Crown Castle Fiber LLC	`5.45ms` from Dallas, US
216.57.141.1	AS46887 Crown Castle Fiber LLC	`2.63ms` from Boston, US
216.57.139.9	AS46887 Crown Castle Fiber LLC	`1.86ms` from Boston, US
216.57.143.128	AS33486 ALKERMES INCORPORATED	`1.64ms` from Boston, US
216.57.140.20	AS46887 Crown Castle Fiber LLC	`12.29ms` from Ashburn, US
216.57.142.1	AS395382 COMMONWEALTH EQUITY SERVICES, INC.	`1.32ms` from Boston, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
49.200.149.117	AS45820 Tata Teleservices ISP AS	`1.47ms` from Bengaluru, IN
178.39.73.5	AS6730 Sunrise GmbH	`1.84ms` from Geneve, CH
60.254.116.245	AS17488 Hathway IP Over Cable Internet	`1.03ms` from Hyderabad, IN
74.161.170.245	AS8075 Microsoft Corporation	`0.20ms` from Kloten, CH
87.103.121.69	AS12353 Vodafone Portugal	`1.50ms` from Lisbon, PT
134.158.146.37	AS789 Renater	`13.80ms` from Marseille, FR
192.135.24.69	AS137 Consortium GARR	`5.62ms` from Milan, IT
109.252.224.85	AS25513 PJSC Moscow city telephone network	`1.57ms` from Moscow, RU
69.20.236.5	AS29988 Rogers Communications Canada Inc.	`1.73ms` from Ottawa, CA
187.148.235.165	AS8151 UNINET	`8.46ms` from Santiago de Queretaro, MX
50.194.55.181	AS7922 Comcast Cable Communications, LLC	`7.08ms` from Seattle, US
202.185.106.117	AS9930 TTNET-MY	`2.12ms` from Sepang, MY
117.185.80.133	AS24400 Shanghai Mobile Communications Co.,Ltd.	`2.39ms` from Shanghai, CN
183.191.160.181	AS4837 CHINA UNICOM China169 Backbone	`3.23ms` from Taiyuan, CN
61.24.101.149	AS9824 JCOM Co., Ltd.	`14.60ms` from Tokyo, JP
75.48.47.85	AS7018 AT&T Enterprises, LLC	`1.92ms` from Atlanta, US
50.207.48.5	AS7922 Comcast Cable Communications, LLC	`1.10ms` from Atlanta, US
20.96.129.245	AS8075 Microsoft Corporation	`0.28ms` from Boydton, US
119.49.35.117	AS4837 CHINA UNICOM China169 Backbone	`2.99ms` from Changchun, CN
108.247.243.117	AS7018 AT&T Enterprises, LLC	`2.60ms` from Dallas, US
182.160.117.21	AS24323 aamra networks limited,	`0.59ms` from Dhaka, BD
80.55.28.117	AS5617 Orange Polska Spolka Akcyjna	`2.13ms` from Gdansk, PL
60.11.98.101	AS4837 CHINA UNICOM China169 Backbone	`9.99ms` from Harbin, CN
4.221.104.101	AS8075 Microsoft Corporation	`0.15ms` from Johannesburg, ZA
67.213.25.5	AS26760 Southern Kansas Telephone Co., Inc.	`13.95ms` from Lenexa, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 216.57.140.20

traceroute to 216.57.140.20 (216.57.140.20): 64 hops max, 52 byte packets

1 [AS136258] 23.95.74.1 0.333 ms

2 [AS1299] 62.115.156.48 2.638 ms

3 [AS1299] 62.115.138.222 0.987 ms

4 [AS1299] 62.115.138.190 1.248 ms

5 [AS1299] 62.115.8.255 1.258 ms

6 [AS46887] 104.207.214.103 15.089 ms

7 [AS46887] 160.72.248.120 7.972 ms

8 [AS46887] 160.72.248.123 9.815 ms

9 [AS46887] 160.72.248.32 12.708 ms

10 *

11 [AS46887] 216.57.140.20 12.64 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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