166.50.0.0/16 - Verizon Business (AS3371)
CIDR
166.50.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Washington D.C.
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.50.0.0/16 | AS3371 MCI-ASN - Verizon Business | No ROA | - | 2026-10-11 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.50.3.0/24 | AS701 UUNET - Verizon Business | No ROA | - | 2026-10-11 |
| 166.50.80.0/20 | AS3372 MCI-ASN - Verizon Business | No ROA | - | 2026-10-11 |
Transfer History
Registry transfers of 166.50.0.0/16, blocks inside it, or blocks containing it.
- 166.50.0.0/15M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 166.50.0.0/15 | M&A |
Origin ASN
AS3371
MCI-ASN - Verizon Business
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/166.50.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.50.0.0/16" | jq
External Links