IP address 156.154.221.60

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Overview

LocationCity, region and country where this IP is located.
Westford, Massachusetts, US
ASNThe autonomous system that announces this IP on the internet.
AS19905 — NetScout Systems, Inc.
TimezoneThe IANA time zone at this IP's location.
America/New_York
NetworkThe routed network block (CIDR) that contains this IP.
156.154.221.0/24
CompanyThe organization this IP is assigned to.
Arbor Cloud
Abuse contactWhere to report spam, attacks or other misuse from this IP.
arin-arborc@netscout.com

Reported location

Westford

Massachusetts, United States (US)

Powered byIP Geolocation API

City
Westford
District / county
Middlesex
State / province
Massachusetts
Country
United States
Postal code
01886-4105
Coordinates
42.55352, -71.44202

United States

42.55352, -71.44202

© OpenStreetMap

Threat score

5/100 Low risk

Powered byIP Security API

Flags detected

  • AnonymousTraffic from this IP hides its real origin (VPN, proxy or Tor).Not Detected
  • Known attackerThis IP has been seen in attacks such as brute force, scanning or exploits.Not Detected
  • SpamThis IP has been reported for sending spam.Not Detected
  • TorThis IP is a Tor exit node.Not Detected
  • ProxyThis IP is an open, public or commercial proxy.Not Detected
  • VPNThis IP belongs to a VPN service.Not Detected
  • BotAutomated traffic such as crawlers or scrapers comes from this IP.Not Detected
  • Cloud providerThis IP belongs to a cloud or hosting provider's data center.Detected
  • Residential proxyA home or mobile connection resold as a proxy exit.Not Detected
  • Corporate gatewayA shared egress gateway used by a company's network.Not Detected
  • RelayThis IP is a relay exit, such as iCloud Private Relay.Not Detected

Cloud Provider

Detected
Provider Names
Arbor Cloud

Abuse contact

Arbor Cloud Administrator

arin-arborc@netscout.com

Powered byIP Abuse Contact API

Name
Arbor Cloud Administrator
Organization
Netscout Systems, Inc.
Network
156.154.204.0/22
Country
US
Kind
group
Address
310 Littleton Rd., Westford, MA, 01886, United States
Emails
arin-arborc@netscout.com
Phone numbers
+1 734-794-5031

Autonomous system

AS19905

NetScout Systems, Inc.

Powered byASN Records

ASN
AS19905
Country
US
Domain
netscout.com
Regional registry
ARIN
Organization
NetScout Systems, Inc.
Type
Hosting provider
Allocated on
2007-08-24

Organization

NetScout Systems, Inc.

Associated company

Arbor Cloud

HOSTING · netscout.com

Powered byIP Geolocation API

Name
Arbor Cloud
Type
Hosting provider
Domain
netscout.com

Network route

156.154.221.0/24

Powered byIP Geolocation API

Hostname
156.154.221.60
Route
156.154.221.0/24
Connection type
—
Anycast
no
CDN
no
CDN provider
—

Time zone

America/New_York

2026-10-07 01:12

Powered byTime Zone API

Offset from UTC
-5.0
Standard time zone
Eastern Standard Time
Standard abbreviation
EST
Daylight saving time
true
DST savings (hours)
1
Observing DST now
true
Westford

United States

42.55352, -71.44202

User agent string

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Powered byUser Agent API

  • BrowserClaudeBotver. 1.0
  • EngineClaudeBotver. 1.0
  • Operating systemCloud
  • DeviceRobotAnthropic ClaudeBot
  • ArchitectureUnknown
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Response 
{
  "ip" : "156.154.221.60",
  "hostname" : "156.154.221.60",
  "location" : {
    "district" : "Middlesex",
    "city" : "Westford",
    "locality" : "Westford",
    "zipcode" : "01886-4105",
    "latitude" : "42.55352",
    "longitude" : "-71.44202",
    "continent_code" : "NA",
    "continent_name" : "North America",
    "country_code2" : "US",
    "country_code3" : "USA",
    "country_name" : "United States",
    "country_name_official" : "United States of America",
    "country_capital" : "Washington, D.C.",
    "state_prov" : "Massachusetts",
    "state_code" : "US-MA",
    "accuracy_radius" : "24.307",
    "confidence" : "low",
    "dma_code" : "506",
    "is_eu" : false,
    "country_flag" : "https://ipgeolocation.io/static/flags/us_64.png",
    "geoname_id" : "6463095",
    "country_emoji" : "🇺🇸"
  },
  "country_metadata" : {
    "tld" : ".us",
    "languages" : [ "en-US", "es-US", "haw", "fr" ],
    "calling_code" : "+1"
  },
  "network" : {
    "route" : "156.154.221.0/24",
    "connection_type" : "",
    "is_anycast" : false,
    "is_cdn" : false,
    "cdn_provider_name" : ""
  },
  "currency" : {
    "code" : "USD",
    "name" : "US Dollar",
    "symbol" : "$"
  },
  "asn" : {
    "organization" : "NetScout Systems, Inc.",
    "country" : "US",
    "type" : "HOSTING",
    "domain" : "netscout.com",
    "rir" : "ARIN",
    "as_number" : "AS19905",
    "date_allocated" : "2007-08-24"
  },
  "company" : {
    "name" : "Arbor Cloud",
    "type" : "HOSTING",
    "domain" : "netscout.com"
  },
  "security" : {
    "threat_score" : 5,
    "is_tor" : false,
    "is_proxy" : false,
    "proxy_provider_names" : [ ],
    "proxy_confidence_score" : 0,
    "proxy_last_seen" : "",
    "is_residential_proxy" : false,
    "is_vpn" : false,
    "vpn_provider_names" : [ ],
    "vpn_confidence_score" : 0,
    "vpn_last_seen" : "",
    "is_relay" : false,
    "relay_provider_name" : "",
    "is_anonymous" : false,
    "is_known_attacker" : false,
    "is_bot" : false,
    "bot_confidence_score" : 0,
    "bot_operator_name" : "",
    "bot_type" : "",
    "is_known_good_bot" : false,
    "bot_last_seen" : "",
    "is_spam" : false,
    "is_cloud_provider" : true,
    "cloud_provider_name" : "Arbor Cloud",
    "is_corporate_gateway" : false,
    "corporate_gateway_type" : "",
    "corporate_gateway_provider_name" : ""
  },
  "abuse" : {
    "route" : "156.154.204.0/22",
    "country" : "US",
    "name" : "Arbor Cloud Administrator",
    "organization" : "Netscout Systems, Inc.",
    "kind" : "group",
    "address" : "310 Littleton Rd., Westford, MA, 01886, United States",
    "emails" : [ "arin-arborc@netscout.com" ],
    "phone_numbers" : [ "+17347945031" ]
  },
  "time_zone" : {
    "name" : "America/New_York",
    "offset" : -5.0,
    "offset_with_dst" : -4.0,
    "current_time" : "2026-10-07 01:12:11.936-0400",
    "current_time_unix" : 1.791349931936E9,
    "current_tz_abbreviation" : "EDT",
    "current_tz_full_name" : "Eastern Daylight Time",
    "standard_tz_abbreviation" : "EST",
    "standard_tz_full_name" : "Eastern Standard Time",
    "is_dst" : true,
    "dst_savings" : 1,
    "dst_exists" : true,
    "dst_tz_abbreviation" : "EDT",
    "dst_tz_full_name" : "Eastern Daylight Time",
    "dst_start" : {
      "utc_time" : "2026-03-08 TIME 07:00",
      "duration" : "+1.00H",
      "gap" : true,
      "date_time_after" : "2026-03-08 TIME 03:00",
      "date_time_before" : "2026-03-08 TIME 02:00",
      "overlap" : false
    },
    "dst_end" : {
      "utc_time" : "2026-11-01 TIME 06:00",
      "duration" : "-1.00H",
      "gap" : false,
      "date_time_after" : "2026-11-01 TIME 01:00",
      "date_time_before" : "2026-11-01 TIME 02:00",
      "overlap" : true
    }
  },
  "user_agent" : {
    "user_agent_string" : "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
    "name" : "ClaudeBot",
    "type" : "Robot",
    "version" : "1.0",
    "version_major" : "1",
    "device" : {
      "name" : "Anthropic ClaudeBot",
      "type" : "Robot",
      "brand" : "Anthropic",
      "cpu" : "Unknown"
    },
    "engine" : {
      "name" : "ClaudeBot",
      "type" : "Robot",
      "version" : "1.0",
      "version_major" : "1"
    },
    "operating_system" : {
      "name" : "Cloud",
      "type" : "Cloud",
      "version" : "??",
      "build" : "??",
      "version_major" : "??"
    }
  }
}

Evaluation checklist

Behind the address

What the data tells you about 156.154.221.60.

Who operates 156.154.221.60?

NetScout Systems, Inc. operates AS19905, the autonomous system announcing this address. The associated company is Arbor Cloud; the reported network is 156.154.221.0/24.

View ASN API

Why can its location change?

IP location comes from routing, registry and measurement data. It can shift when NetScout Systems, Inc. reassigns the block, so treat Westford as an estimate, not a fixed point.

View IP Location API

How do I report abuse?

The listed abuse contact is Arbor Cloud Administrator. Include the source IP, timestamps with a timezone, and relevant logs so the contact can investigate.

View Abuse Contact API

For developers

The same data. One API request.

Add IP location, network, and security data to your application.

cURL 
curl --get 'https://api.ipgeolocation.io/v3/ipgeo' \
  --data-urlencode 'apiKey=YOUR_API_KEY' \
  --data-urlencode 'ip=156.154.221.60' \
  --data-urlencode 'include=*'
Response 
{ "ip": "156.154.221.60" }

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Frequently Asked Questions

The latest lookup maps 156.154.221.60 to Westford, Massachusetts, United States. Geolocation is approximate and should be treated as city/region level guidance.
This page currently shows ASN AS19905 and company Arbor Cloud. ASN and company attribution can change as routing and ownership records are updated.
The reported connection type for 156.154.221.60 is not published. This value helps with traffic analytics, abuse prevention, and policy routing decisions.
The current timezone record for 156.154.221.60 is America/New_York. Teams commonly use this signal to localize timestamps, notifications, and fraud models.
IP intelligence is dynamic. Routing, ASN ownership, company names, and security posture can change over time, so this page should be treated as a point-in-time lookup for 156.154.221.60.
Use the JSON response on this page for testing, then move to production API workflows with structured fields for geolocation, network, ASN, security, abuse, and timezone data. Read documentation.