65.51.128.0/20

AS54004 · Optimum WiFi

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Summary

Country	United States
Domain	slgreen.com
ASN	AS54004
Registry	ARIN
ID	NET-65-51-129-0-1

WHOIS Details

NetHandle:      NET-65-51-129-0-1
OrgID:          C07682183
Parent:         NET-65-51-0-0-1
NetName:        NET-65-51-129-0-1
NetRange:       65.51.129.0 - 65.51.129.255
NetType:        reassignment
OriginAS:       399208
RegDate:        2020-11-09
Updated:        2022-03-16
Source:         ARIN


OrgID:          C07682183
OrgName:        SL GREEN REALTY CORP
CanAllocate:    
Street:         420 LEXINGTON AV
City:           NEW YORK
State/Prov:     NY
Country:        US
PostalCode:     10170
Comment:        None
RegDate:        2020-11-09
Updated:        2020-11-09
Source:         ARIN

Hosted domains

There are 47 domain names hosted across 19 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
65.51.132.157	travelsavers.info	6
65.51.137.10	thefstrust.com	4
65.51.135.202	wpmv.com	1
65.51.130.103	anzas.cloud	1
65.51.138.103	swr.k12.ny.us	1
65.51.137.28	fi-teksupport.com	1
65.51.137.247	shenkmanfunds.com	1
65.51.140.194	pennypublications.net	1
65.51.135.211	firstplaceabstract.com	1
65.51.135.210	tplawny.com	1
65.51.132.149	travelsavers.ca	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

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

IP Address	ASN	Details
65.51.137.178	AS54004 Optimum WiFi	`1.99ms` from New York City, US
65.51.140.218	AS54004 Optimum WiFi	`1.52ms` from New York City, US
65.51.132.249	AS54004 Optimum WiFi	`1.92ms` from New York City, US
65.51.128.101	AS54004 Optimum WiFi	`1.57ms` from New York City, US
65.51.142.25	AS54004 Optimum WiFi	`1.72ms` from New York City, US
65.51.134.232	AS46673 Delta Dental Of New Jersey	`1.77ms` from New York City, US
65.51.136.2	AS54004 Optimum WiFi	`1.89ms` from New York City, US
65.51.130.18	AS54004 Optimum WiFi	`1.77ms` from New York City, US
65.51.131.65	AS54004 Optimum WiFi	`1.73ms` from New York City, US
65.51.139.28	AS54004 Optimum WiFi	`2.61ms` from New York City, US
65.51.135.210	AS54004 Optimum WiFi	`1.81ms` from New York City, US
65.51.141.133	AS54004 Optimum WiFi	`1.70ms` from New York City, US
65.51.133.2	AS398116 FDNY	`4.18ms` from New York City, US
65.51.129.11	AS399208 SL Green Realty Corp	`0.56ms` from New York City, US
65.51.138.233	AS54004 Optimum WiFi	`1.80ms` from New York City, 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
40.68.230.196	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
216.150.59.4	AS10440 Merkle Inc.	`2.94ms` from Ashburn, US
173.236.231.164	AS26347 New Dream Network, LLC	`0.31ms` from Ashburn, US
72.84.232.196	AS701 Verizon Business	`4.50ms` from Ashburn, US
54.202.141.132	AS16509 Amazon.com, Inc.	`0.26ms` from Boardman, US
20.74.196.4	AS8075 Microsoft Corporation	`0.92ms` from Dubai, AE
84.19.11.20	AS30962 comtrance service GmbH	`0.49ms` from Duesseldorf, DE
63.176.176.164	AS16509 Amazon.com, Inc.	`0.40ms` from Frankfurt am Main, DE
31.119.45.164	AS2856 British Telecommunications PLC	`0.98ms` from London, GB
80.58.100.196	AS3352 TELEFONICA DE ESPANA S.A.U.	`0.50ms` from Madrid, ES
80.247.37.20	AS25292 Federal State Unitary Enterprise "The Russian Television and Radio Broadcasting Company"	`0.66ms` from Moscow, RU
126.90.221.132	AS17676 SoftBank Corp.	`3.39ms` from Osaka, JP
91.167.50.196	AS12322 Free SAS	`11.15ms` from Paris, FR
179.216.104.100	AS28573 Claro NXT Telecomunicacoes Ltda	`12.38ms` from Porto Alegre, BR
27.255.68.244	AS45382 Hostcenter	`0.85ms` from Seoul, KR
112.184.145.228	AS4766 Korea Telecom	`2.60ms` from Seoul, KR
220.71.53.20	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
139.180.213.132	AS20473 The Constant Company, LLC	`0.15ms` from Singapore, SG
203.10.54.132	AS134096 eHealth NSW	`1.42ms` from Sydney, AU
185.194.20.100	AS35492 FunkFeuer Wien - Verein zur Foerderung freier Netze	`2.15ms` from Vienna, AT
89.210.114.196	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.31ms` from Athens, GR
222.154.154.244	AS4771 Spark New Zealand Trading Ltd.	`3.20ms` from Auckland, NZ
82.156.112.164	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.78ms` from Beijing, CN
76.23.189.36	AS7922 Comcast Cable Communications, LLC	`6.98ms` from Boston, US
222.243.222.132	AS4134 CHINANET-BACKBONE	`5.99ms` from Changsha, CN

Traceroute

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

traceroute -a -n -q1 -m7 65.51.143.9

traceroute to 65.51.143.9 (65.51.143.9): 7 hops max, 52 byte packets

1 [AS397423] 155.254.28.1 3.569 ms

2 *

3 *

4 [AS3356] 4.34.79.46 15.018 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Charlotte, US

On August 22nd 2025

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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