AS Number
AS11377
AS Name
SENDGRID
Org Name
SendGrid, Inc.
Registry

arin

RegDate

2012-06-14

Updated

2025-06-12

AS11377 Looking Glass
IPv4Prefixes

130

IPv6Prefixes

0

IPv4 NUMs

263,680

IPv6 NUMs(/64)

0

263,680 IPv4 Addresses
CIDR Description IP Num
50.31.32.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
50.31.48.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
134.128.64.0/19
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 8192
134.128.96.0/19
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 8192
137.22.245.0/24
ROA Signed and Valid
SendGrid, Inc. 256
137.22.246.0/24
ROA Signed and Valid
SendGrid, Inc. 256
149.72.1.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
149.72.2.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
149.72.4.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
149.72.8.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
149.72.12.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
149.72.19.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
149.72.20.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
149.72.24.0/21
ROA Signed and Valid IRR Valid
SendGrid, Inc. 2048
149.72.32.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
149.72.64.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
149.72.96.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
149.72.98.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
149.72.112.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
149.72.128.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
149.72.160.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
149.72.192.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
149.72.224.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
159.26.176.0/24
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 256
159.26.177.0/24
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 256
159.26.178.0/24
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 256
159.26.179.0/24
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 256
159.26.180.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
159.26.184.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
159.26.188.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
159.183.0.0/19
ROA Signed and Valid IRR Valid
Twilio SendGrid 8192
159.183.32.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.33.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.34.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.35.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.36.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.37.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.38.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.39.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.40.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.41.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.42.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.43.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.44.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.45.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.46.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.47.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.64.0/18
ROA Signed and Valid IRR Valid
Twilio SendGrid 16384
159.183.128.0/18
ROA Signed and Valid IRR Valid
Twilio SendGrid 16384
159.183.192.0/19
ROA Signed and Valid IRR Valid
Twilio SendGrid 8192
159.183.224.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.225.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.226.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.227.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.228.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.229.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.230.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.231.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.232.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.233.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.234.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.235.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.236.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.237.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.238.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.239.0/24
ROA Signed and Valid IRR Valid
Twilio SendGrid 256
159.183.240.0/22
ROA Signed and Valid IRR Valid
Twilio SendGrid 1024
159.183.244.0/22
ROA Signed and Valid IRR Valid
Twilio SendGrid 1024
167.89.0.0/18
ROA Signed and Valid IRR Valid
SendGrid, Inc. 16384
167.89.64.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
167.89.96.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
167.89.112.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
167.89.113.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
167.89.114.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
167.89.117.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
167.89.118.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
167.89.120.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
167.89.122.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
167.89.124.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
167.89.126.0/23
ROA Signed and Valid IRR Valid
SendGrid, Inc. 512
168.245.0.0/18
ROA Signed and Valid IRR Valid
SendGrid, Inc. 16384
168.245.64.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
168.245.80.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
168.245.84.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
168.245.88.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
168.245.92.0/22
ROA Signed and Valid IRR Valid
SendGrid, Inc. 1024
168.245.96.0/19
ROA Signed and Valid IRR Valid
SendGrid, Inc. 8192
192.254.112.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
198.21.0.0/21
ROA Signed and Valid IRR Valid
SendGrid, Inc. 2048
198.37.144.0/20
ROA Signed and Valid IRR Valid
SendGrid, Inc. 4096
208.117.48.0/21
ROA Signed and Valid IRR Valid
SendGrid, Inc. 2048
208.117.56.0/21
ROA Signed and Valid IRR Valid
SendGrid, Inc. 2048
216.20.0.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.4.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.8.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.12.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.16.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.20.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.24.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.28.0/22
ROA Signed and Valid IRR Parent Valid
North Shore Regional Voc Schools 1024
216.20.32.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.36.0/22
ROA Signed and Valid IRR Parent Valid
Westborough Public Schools 1024
216.20.40.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.44.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.48.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.52.0/22
ROA Signed and Valid IRR Parent Valid
Fall River Public Schools (C01911042) 1024
216.20.56.0/22
ROA Signed and Valid IRR Parent Valid
Billerica, Town of 1024
216.20.60.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.64.0/22
ROA Signed and Valid IRR Parent Valid
Acton-Boxborough Reg School District 1024
216.20.68.0/22
ROA Signed and Valid IRR Parent Valid
Groton Dunstable Regional School District 1024
216.20.72.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.76.0/22
ROA Signed and Valid IRR Parent Valid
Everett Public Schools 1024
216.20.80.0/22
ROA Signed and Valid IRR Parent Valid
Quaboag Regional School District (C01911461) 1024
216.20.84.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.88.0/22
ROA Signed and Valid IRR Parent Valid
Manchester Public Schools 1024
216.20.92.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.96.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.100.0/22
ROA Signed and Valid IRR Parent Valid
Benjamin Bannecker Chtr School 1024
216.20.104.0/22
ROA Signed and Valid IRR Parent Valid
Old Rochester (C01911401) 1024
216.20.108.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.112.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.116.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.120.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
216.20.124.0/22
ROA Signed and Valid IRR Parent Valid
Twilio SendGrid 1024
223.165.113.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
223.165.115.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
223.165.118.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
223.165.119.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
223.165.120.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
223.165.121.0/24
ROA Signed and Valid IRR Valid
SendGrid, Inc. 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS701 UUNET - Verizon Business, US United States 41,644,800 1,249,852,784,640 IPv4 IPv4
AS3223 VOXILITY - Voxility LLP, GB United Kingdom 70,144 18,546,688 IPv4 IPv4
AS4826 VOCUS-BACKBONE-AS - VOCUS PTY LTD, AU Australia 326,144 17,180,065,792 IPv4 IPv4
AS262589 SAMM TECNOLOGIA E TELECOMUNICACOES S.A, BR Brazil 110,336 21,476,802,560 IPv4 IPv4
AS293 ESNET, US United States 140,800 4,295,163,904 IPv4 IPv4
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 2,560 268,501,000 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,876,544 81,609,621,504 IPv4 IPv4
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 424,192 77,326,843,904 IPv4 IPv4
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2,155,520 68,719,476,736 IPv4 IPv4
AS8220 COLT - COLT Technology Services Group Limited, GB United Kingdom 1,496,320 25,770,590,208 IPv4 IPv4
AS16552 DIGICERT - Tiggee LLC, US United States 21,248 34,363,801,600 IPv4 IPv4
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 116,992 356,753,080,320 IPv4 IPv4
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 123,136 77,422,723,074 IPv4 IPv4
AS4455 BSO - IX Reach Ltd, GB United Kingdom 64,256 12,884,967,424 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 456,704 282,627,370,713,088 IPv4 IPv4
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 65,536 12,884,901,888 IPv4 IPv4
AS53828 NITEL - NETWORK INNOVATIONS, LLC, US United States 132,096 4,294,967,296 IPv4 IPv4
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 130,304 118,226,945 IPv4 IPv4
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 6,308,096 30,065,033,216 IPv4 IPv4
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1,747,712 51,808,436,224 IPv4 IPv4
AS7195 EDGEUNO S.A.S, CO Colombia 32,000 4,274,061,312 IPv4 IPv4
AS13786 SEABORN - Seabras 1 USA, LLC, US United States 3,072 8,589,934,592 IPv4 IPv4
AS19653 CTSTELECOM - CTS Communications Corp, US United States 61,952 4,294,967,296 IPv4 IPv4
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13,312 2,228,224 IPv4 IPv4
AS32709 1-JOINK - Joink, LLC, US United States 45,056 4,294,967,296 IPv4 IPv4
AS37468 ANGOLA-CABLES - Angola Cables, AO Angola 9,472 42,949,672,960 IPv4 IPv4
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15,872 8,589,934,592 IPv4 IPv4
ASNumber:       11377
ASName:         SENDGRID
ASHandle:       AS11377
RegDate:        2012-06-28
Updated:        2012-06-28
Ref:            https://rdap.arin.net/registry/autnum/11377



OrgName:        SendGrid, Inc.
OrgId:          SENDG-12
Address:        Twilio, Inc.
Address:        1801 California Street
Address:        Suite 500
City:           Denver
StateProv:      CO
PostalCode:     80202
Country:        US
RegDate:        2012-06-14
Updated:        2025-06-12
Comment:        http://www.sendgrid.com
Comment:        
Comment:        (888) 985-8363
Comment:        Support hours: M-F, 7a-7p Mountain Time.
Ref:            https://rdap.arin.net/registry/entity/SENDG-12


OrgTechHandle: TSNO-ARIN
OrgTechName:   Twilio SendGrid Network Operations
OrgTechPhone:  +1-888-985-7363 
OrgTechEmail:  netops+[email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/TSNO-ARIN

OrgAbuseHandle: ABUSE3074-ARIN
OrgAbuseName:   Abuse Desk
OrgAbusePhone:  +1-888-985-7363 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3074-ARIN

OrgTechHandle: TALSM-ARIN
OrgTechName:   Talsma, Jack 
OrgTechPhone:  +1-415-390-2337 
OrgTechEmail:  netops+[email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/TALSM-ARIN