1. All IP Ranges
  2. 216.0.0.0/8
  3. 216.21.0.0/16
  4. AS63476  | 216.21.1.0/24

216.21.1.0/24

AS63476  ·  SMS Assist, L.L.C.

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Summary

Country United States
Domain smsassist.com
ASN AS63476
Registry ARIN
ID SMS-ASSIST

WHOIS Details

NetHandle:      NET-216-21-1-0-1
OrgID:          SAL-123
Parent:         NET-216-0-0-0-0
NetName:        SMS-ASSIST
NetRange:       216.21.1.0 - 216.21.1.255
NetType:        allocation
Comment:        http://www.smsassist.com
Comment:        Standard NOC hours are 8pm to 5pm CST
RegDate:        2016-01-13
Updated:        2021-12-14
Source:         ARIN


OrgID:          SAL-123
OrgName:        SMS Assist, L.L.C.
CanAllocate:    
Street:         875 N Michigan Ave
Street:         Suite 2800
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60611
Comment:        http://www.smsassist.com
Comment:        Standard NOC hours are 8am to 5pm CST
RegDate:        2015-03-16
Updated:        2022-01-19
OrgAdminHandle: RMO258-ARIN
OrgTechHandle:  RMO258-ARIN
OrgTechHandle:  STEVE829-ARIN
OrgAbuseHandle: RMO258-ARIN
OrgAbuseHandle: STEVE829-ARIN
OrgNOCHandle:   RMO258-ARIN
OrgNOCHandle:   STEVE829-ARIN
Source:         ARIN


POCHandle:      STEVE829-ARIN
IsRole:         N
LastName:       Stevenson
FirstName:      Rod
Street:         875 N. Michigan Ave., Suite 3000
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60611
RegDate:        2018-03-30
Updated:        2025-01-22
OfficePhone:    +1-312-471-2959
Mailbox:        rstevenson@smsassist.com
Source:         ARIN


POCHandle:      RMO258-ARIN
IsRole:         N
LastName:       Olsen
FirstName:      Richard
Street:         130 E Randolph Road
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60601
RegDate:        2018-03-29
Updated:        2025-10-29
OfficePhone:    +1-312-257-3388
Mailbox:        rolsen@smsassist.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 216.21.0.0/16

Range ASN Company Num of IPs
216.21.32.0/19 AS16399 First Communications LLC 8,192
216.21.64.0/19 AS16423 NETTOGO 8,192
216.21.128.0/19 AS21723 Radiant Communications Ltd. 8,192
216.21.96.0/19 AS15116 Pittsburg State University 8,192
216.21.160.0/20 AS16591 Google Fiber Inc. 4,096
216.21.192.0/20 AS33247 COASTAL TELCO SERVICES, INC. 4,096
216.21.184.0/21 AS53256 MULBERRY TELEPHONE CO 2,048
216.21.24.0/21 AS40266 SpeedyQuick Networks Inc 2,048
216.21.216.0/21 AS54225 ORANGE COUNTY FIBER LLC 2,048
216.21.8.0/22 AS393964 High Mountain Farm, LLC 1,024
216.21.208.0/22 AS26223 Silver Star Communications 1,024
216.21.212.0/22 AS395846 Direct Communications Rockland, Inc 1,024
216.21.14.0/24 AS7377 RGnet, LLC 256
216.21.240.0/24 AS13649 Internet Pipeline, Inc. 256
216.21.233.0/24 AS36445 Coextro 256
216.21.17.0/24 AS400441 WINAC 256
216.21.5.0/24 AS40279 ForestRacks 256
216.21.230.0/24 AS40444 Constant Contact, Inc 256
216.21.15.0/24 AS11233 Gorge Networks LLC 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity
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Pingable IPs

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

IP Address ASN Details
216.21.1.1 AS63476 SMS Assist, L.L.C. 0.34ms from Chicago, 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
99.35.144.184 AS7018 AT&T Enterprises, LLC 3.52ms from Atlanta, US
77.181.29.120 AS6805 Telefonica Germany GmbH & Co.OHG 3.48ms from Frankfurt am Main, DE
39.33.43.72 AS17557 Pakistan Telecommunication Company Limited 10.81ms from Islamabad, PK
75.236.146.120 AS6167 Verizon Business 11.99ms from Los Angeles, US
23.11.188.200 AS16625 Akamai Technologies, Inc. 0.58ms from Melbourne, AU
213.139.112.8 AS8784 Odigo SASU 1.09ms from Paris, FR
69.130.185.248 AS4181 TDS TELECOM 9.06ms from Seattle, US
54.92.102.104 AS16509 Amazon.com, Inc. 0.18ms from Tokyo, JP
18.236.112.136 AS16509 Amazon.com, Inc. 0.51ms from Boardman, US
94.104.199.200 AS47377 Orange Belgium SA 7.47ms from Brussels, BE
197.55.35.200 AS8452 TE-AS 8.12ms from Cairo, EG
211.251.246.104 AS4766 Korea Telecom 1.04ms from Incheon, KR
51.48.200.248 AS16509 Amazon.com, Inc. 5.97ms from Madrid, ES
83.53.167.104 AS3352 TELEFONICA DE ESPANA S.A.U. 10.33ms from Madrid, ES
62.42.215.248 AS6739 VODAFONE ONO, S.A. 7.64ms from Madrid, ES
92.43.208.24 AS8681 JT (Jersey) Limited 1.66ms from Saint Peter Port, GG
189.165.226.72 AS8151 UNINET 5.45ms from Santiago de Queretaro, MX
16.176.60.40 AS16509 Amazon.com, Inc. 0.12ms from Sydney, AU
38.97.132.200 AS174 Cogent Communications, LLC 0.32ms from Boston, US
81.82.26.88 AS6848 Telenet BV 6.25ms from Brussels, BE
149.165.25.168 AS87 Indiana University 11.73ms from Chicago, US
54.171.112.200 AS16509 Amazon.com, Inc. 0.19ms from Dublin, IE
86.13.49.104 AS5089 Virgin Media Limited 10.79ms from Dublin, IE
152.228.219.88 AS16276 OVH SAS 0.11ms from Gravelines, FR
213.30.242.152 AS8881 1&1 Versatel GmbH 0.45ms from Hamburg, DE

Traceroute

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

$
traceroute -a -n -q1 -f2 216.21.1.1
traceroute to 216.21.1.1 (216.21.1.1): 64 hops max, 52 byte packets
2 [] 156.146.32.232 0.151 ms
3 *
4 [AS174] 154.54.82.201 0.789 ms
5 [AS174] 154.54.94.122 0.566 ms
6 [AS174] 154.24.0.73 1.173 ms
7 [AS63476] 216.21.1.1 0.47 ms
Measurement taken from IPinfo ProbeNet in Chicago, US
On

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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