72.9.12.0/23

AS11776 · Breezeline

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Summary

Country	United States
Domain	atlanticbb.net
ASN	AS11776
Registry	ARIN
ID	MD-HOLLYWOOD-CPE

WHOIS Details

NetHandle:      NET-72-9-12-0-1
OrgID:          C01496439
Parent:         NET-72-9-0-0-1
NetName:        MD-HOLLYWOOD-CPE
NetRange:       72.9.12.0 - 72.9.12.255
NetType:        reassignment
RegDate:        2006-11-15
Updated:        2018-03-23
Source:         ARIN


OrgID:          C01496439
OrgName:        Atlantic Broadband
CanAllocate:    
Street:         43920 Airport View Dr
City:           Hollywood
State/Prov:     MD
Country:        US
PostalCode:     20636
RegDate:        2006-11-15
Updated:        2018-03-23
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 72.9.0.0/16

Range	ASN	Company	Num of IPs
72.9.32.0/19	AS14131	DataYard	8,192
72.9.192.0/19	AS22343	Vonage Business Inc.	8,192
72.9.64.0/19	AS8025	CHICKASAW TELEPHONE	8,192
72.9.128.0/20	AS17501	WorldLink Communications	4,096
72.9.96.0/20	AS15149	Core Technology Services, Inc.	4,096
72.9.144.0/20	AS30277	DFW Datacenter	4,096
72.9.112.0/20	AS32160	CTI Fiber	4,096
72.9.141.0/24	AS17501	WLINK-ENT	256
72.9.142.0/24	AS17501	WLINK-ENT	256
72.9.233.0/24	AS198584	Private Customer	256
72.9.225.0/24	AS2914	UPSTREAM NETWORK LTD	256
72.9.229.0/24	AS401776	Private Customer	256
72.9.240.0/24	AS7226	zColo	256
72.9.250.0/24	AS7226	zColo	256
72.9.230.0/24	AS834	Internet Utilities NA LLC	256
72.9.234.0/24	AS834	Atlas Networks Corporation	256
72.9.236.0/24	AS834	Internet Utilities NA LLC	256
72.9.243.0/24	AS834	Atlas Networks Corporation	256
72.9.245.0/24	AS834	Internet Utilities NA LLC	256
72.9.247.0/24	AS834	Internet Utilities NA LLC	256
72.9.241.0/24	AS11042	NETWORK TRANSIT HOLDINGS LLC	256
72.9.255.0/24	AS834	UPSTREAM NETWORK LTD	256
72.9.11.0/24	AS11776	Atlantic Broadband	256
72.9.17.0/24	AS11776	Atlantic Broadband	256
72.9.8.0/24	AS11776	Atlantic Broadband	256
72.9.9.0/24	AS11776	Atlantic Broadband	256
72.9.130.0/24	AS17501	WLINK-ENT	256
72.9.140.0/24	AS17501	WLINK-ENT	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
72.9.12.64	zerotheory.net	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

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

IP Address	ASN	Details
72.9.13.1	AS11776 Breezeline	`4.76ms` from Ashburn, US
72.9.12.1	AS11776 Breezeline	`4.76ms` from Ashburn, 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
51.136.162.87	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
71.163.108.119	AS701 Verizon Business	`2.29ms` from Ashburn, US
217.241.48.135	AS3320 Deutsche Telekom AG	`13.13ms` from Frankfurt am Main, DE
70.152.62.7	AS8075 Microsoft Corporation	`0.23ms` from Gaevle, SE
90.129.73.199	AS1257 Tele2 Sverige AB	`0.55ms` from Goeteborg, SE
23.241.243.119	AS20001 Charter Communications Inc	`4.48ms` from Los Angeles, US
105.168.96.167	AS37119 UNITEL SA	`0.78ms` from Luanda, AO
84.125.134.23	AS6739 VODAFONE ONO, S.A.	`16.19ms` from Madrid, ES
87.27.254.183	AS3269 Telecom Italia S.p.A.	`6.34ms` from Naples, IT
88.123.25.135	AS12322 Free SAS	`14.71ms` from Paris, FR
3.92.240.71	AS14618 Amazon.com, Inc.	`0.66ms` from Reston, US
119.203.38.231	AS4766 Korea Telecom	`3.04ms` from Seoul, KR
218.145.65.23	AS4766 Korea Telecom	`0.82ms` from Seoul, KR
116.2.95.23	AS4837 CHINA UNICOM China169 Backbone	`8.14ms` from Tieling, CN
86.126.212.87	AS8708 DIGI ROMANIA S.A.	`5.57ms` from Timisoara, RO
64.79.51.247	AS393713 All Points Broadband	`0.86ms` from Ashburn, US
172.72.166.231	AS11426 Charter Communications Inc	`5.72ms` from Charlotte, US
123.145.203.215	AS4837 CHINA UNICOM China169 Backbone	`1.56ms` from Chongqing, CN
8.138.81.39	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.16ms` from Guangzhou, CN
1.190.208.167	AS4837 CHINA UNICOM China169 Backbone	`5.57ms` from Harbin, CN
156.235.178.247	AS134548 DXTL Tseung Kwan O Service	`0.69ms` from Hong Kong, HK
77.120.127.7	AS35680 Volia-Cable LLC	`0.48ms` from Kyiv, UA
114.187.135.55	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.47ms` from Osaka, JP
39.77.253.7	AS4837 CHINA UNICOM China169 Backbone	`1.63ms` from Qingdao, CN
81.107.61.7	AS5089 Virgin Media Limited	`13.83ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f2 72.9.12.1

traceroute to 72.9.12.1 (72.9.12.1): 64 hops max, 52 byte packets

2 [AS917] 199.119.65.2 2.148 ms

3 [AS969] 199.119.64.236 0.378 ms

4 [] 84.17.33.30 0.335 ms

5 *

6 [AS174] 38.142.5.58 0.814 ms

7 [AS11776] 72.9.12.1 4.866 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 9th 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.

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