Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About SendGrid
Twilio SendGrid, commonly known as SendGrid, is an American communication platform for transactional and marketing email based in Denver, Colorado.
Network profile
Source: PeeringDB →Present at 2 internet exchanges: Equinix Ashburn, Equinix Chicago
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS11377 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 149.72.8.0/22 | 179,451 | 2026-11-13 09:19:26 |
| 50.31.32.0/20 | 74,516 | 2026-11-13 09:19:26 |
| 50.31.48.0/20 | 71,301 | 2026-11-13 09:19:25 |
| 149.72.128.0/19 | 66,892 | 2026-11-13 09:19:25 |
| 134.128.64.0/19 | 66,114 | 2026-11-13 09:19:25 |
| 149.72.64.0/19 | 65,420 | 2026-11-13 09:19:25 |
| 149.72.160.0/19 | 63,156 | 2026-11-13 09:19:25 |
| 149.72.224.0/19 | 62,352 | 2026-11-13 09:19:25 |
| 159.183.192.0/19 | 61,201 | 2026-11-13 09:19:25 |
| 168.245.0.0/18 | 58,814 | 2026-11-13 09:19:25 |
| 167.89.112.0/24 | 58,371 | 2026-11-13 09:19:26 |
| 167.89.64.0/19 | 56,834 | 2026-11-13 09:19:25 |
| 168.245.64.0/20 | 56,832 | 2026-11-13 09:19:25 |
| 168.245.96.0/19 | 55,406 | 2026-11-13 09:19:25 |
| 223.165.121.0/24 | 52,378 | 2026-11-13 09:19:26 |
| 223.165.120.0/24 | 51,988 | 2026-11-13 09:19:25 |
| 223.165.118.0/24 | 51,944 | 2026-11-13 09:19:25 |
| 223.165.119.0/24 | 51,262 | 2026-11-13 09:19:25 |
| 168.245.92.0/22 | 50,794 | 2026-11-13 09:19:25 |
| 208.117.48.0/21 | 46,875 | 2026-11-13 09:19:25 |
| 223.165.113.0/24 | 46,654 | 2026-11-13 09:19:25 |
| 208.117.56.0/21 | 45,835 | 2026-11-13 09:19:26 |
| 149.72.19.0/24 | 42,685 | 2026-11-13 09:19:26 |
| 159.183.128.0/18 | 39,213 | 2026-11-13 09:19:25 |
| 149.72.20.0/22 | 38,761 | 2026-11-13 09:19:26 |
| 149.72.2.0/23 | 37,771 | 2026-11-13 09:19:26 |
| 159.183.64.0/18 | 37,695 | 2026-11-13 09:19:26 |
| 134.128.96.0/19 | 37,555 | 2026-11-13 09:19:25 |
| 167.89.118.0/24 | 37,468 | 2026-11-13 09:19:26 |
| 167.89.120.0/23 | 37,442 | 2026-11-13 09:19:26 |
| 168.245.84.0/22 | 37,269 | 2026-11-13 09:19:26 |
| 167.89.0.0/18 | 37,231 | 2026-11-13 09:19:25 |
| 149.72.24.0/21 | 37,225 | 2026-11-13 09:19:25 |
| 198.21.0.0/21 | 36,485 | 2026-11-13 09:19:26 |
| 167.89.117.0/24 | 33,624 | 2026-11-13 09:19:26 |
| 149.72.12.0/22 | 32,960 | 2026-11-13 09:19:26 |
| 149.72.98.0/23 | 32,884 | 2026-11-13 09:19:26 |
| 167.89.124.0/23 | 32,701 | 2026-11-13 09:19:26 |
| 167.89.122.0/23 | 32,645 | 2026-11-13 09:19:26 |
| 168.245.88.0/22 | 32,525 | 2026-11-13 09:19:26 |
| 159.26.177.0/24 | 31,915 | 2026-11-13 09:19:25 |
| 159.26.176.0/24 | 31,775 | 2026-11-13 09:19:25 |
| 159.26.179.0/24 | 31,774 | 2026-11-13 09:19:25 |
| 159.26.178.0/24 | 31,709 | 2026-11-13 09:19:25 |
| 159.183.240.0/22 | 31,263 | 2026-11-13 09:19:25 |
| 137.22.246.0/24 | 30,386 | 2026-11-13 09:19:25 |
| 149.72.192.0/19 | 29,720 | 2026-11-13 09:19:25 |
| 159.183.42.0/24 | 29,234 | 2026-11-13 09:19:25 |
| 167.89.96.0/20 | 29,171 | 2026-11-13 09:19:25 |
| 159.183.43.0/24 | 29,154 | 2026-11-13 09:19:25 |
Showing top 50 of 144 announced prefixes by sample volume.
Frequently Asked Questions
What is AS11377?
AS11377 is an Autonomous System Number assigned to SendGrid, Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS11377 announce?
AS11377 announces 264.2K IPv4 addresses distributed across 35 routed CIDR prefixes. The network is registered in United States.
Who operates AS11377?
AS11377 is operated by SendGrid, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS11377 registered in?
AS11377 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
