Home Prefix Lookup72.5.0.0/16

72.5.0.0/16 - BGP Prefix

IPv4not announcedNo ROA

CIDR

72.5.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Monrovia

Status

not announced

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

60 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
72.5.0.0/20	AS14743 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.10.0/23	AS16417 IRONPORT-SYSTEMS-INC - Cisco Systems Ironport Division	No ROA	-	2026-10-11
72.5.16.0/22	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.20.0/22	AS14742 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.24.0/21	AS14742 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.32.0/22	AS32695 WHITE-RIVER-CONNECT - White River Connect	No ROA	-	2026-10-11
72.5.32.0/23	AS32695 WHITE-RIVER-CONNECT - White River Connect	No ROA	-	2026-10-11
72.5.34.0/23	AS32695 WHITE-RIVER-CONNECT - White River Connect	No ROA	-	2026-10-11
72.5.36.0/22	AS26654 RFA-IDC - Richard Fleischman & Assoc., Inc.	No ROA	-	2026-10-11
72.5.40.0/24	AS16769 AS16769 - Sothebys Inc.	No ROA	-	2026-10-11
72.5.42.0/24	AS399629 BLNWX - BL Networks	Valid	-	2026-10-11
72.5.43.0/24	AS399629 BLNWX - BL Networks	Valid	-	2026-10-11
72.5.46.0/23	AS399244 BLOOM-HOST - AME Hosting LLC	Valid	-	2026-10-11
72.5.48.0/20	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.50.0/23	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.52.0/24	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.61.0/24	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.64.0/21	AS12182 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.65.0/24	AS6461 ZAYO-6461 - Zayo Bandwidth	No ROA	-	2026-10-11
72.5.76.0/22	AS12182 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.78.0/24	AS23023 INTUITIVE - Intuitive Surgical, Inc.	No ROA	-	2026-10-11
72.5.84.0/22	AS14745 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.88.0/21	AS14745 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.96.0/22	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.100.0/22	AS1828 UNITAS - Unitas Global	No ROA	-	2026-10-11
72.5.116.0/22	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.128.0/20	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.144.0/20	AS10913 INTERNAP-BLK - Unitas Global	No ROA	-	2026-10-11
72.5.146.0/24	AS23352 SERVERCENTRAL - DEFT.COM	No ROA	-	2026-10-11
72.5.150.0/23	AS18851 ICORE-ASN-1 - iCore Networks, Inc.	No ROA	-	2026-10-11
72.5.155.0/24	AS10913 INTERNAP-BLK - Unitas Global	No ROA	-	2026-10-11
72.5.160.0/21	AS14743 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.160.0/23	AS14636 INTERNAP-BLK4 - Internap Holding LLC	No ROA	-	2026-10-11
72.5.160.0/23	AS32475 SINGLEHOP-LLC - Internap Holding LLC	No ROA	-	2026-10-11
72.5.160.0/24	AS14636 INTERNAP-BLK4 - Internap Holding LLC	No ROA	-	2026-10-11
72.5.160.0/24	AS32475 SINGLEHOP-LLC - Internap Holding LLC	No ROA	-	2026-10-11
72.5.161.0/24	AS14636 INTERNAP-BLK4 - Internap Holding LLC	No ROA	-	2026-10-11
72.5.161.0/24	AS32475 SINGLEHOP-LLC - Internap Holding LLC	No ROA	-	2026-10-11
72.5.162.0/23	AS32475 SINGLEHOP-LLC - Internap Holding LLC	No ROA	-	2026-10-11
72.5.168.0/22	AS14743 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.171.0/24	AS25985 SYMBIOSYSTEMS - SymbioSystems LLC	No ROA	-	2026-10-11
72.5.172.0/22	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.176.0/21	AS13789 INTERNAP-BLK3 - Unitas Global	No ROA	-	2026-10-11
72.5.176.0/22	AS13789 INTERNAP-BLK3 - Unitas Global	No ROA	-	2026-10-11
72.5.182.0/24	AS18893 SELECT-EQUITY - Select Equity Group, Inc.	No ROA	-	2026-10-11
72.5.184.0/21	AS12179 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.189.0/24	AS32475 SINGLEHOP-LLC - Internap Holding LLC	No ROA	-	2026-10-11
72.5.191.0/24	AS46282 AVIALL-SERVICES-INC - Boeing Distribution, Inc.	No ROA	-	2026-10-11
72.5.192.0/21	AS19024 INTERNAP-BLK5 - Unitas Global	No ROA	-	2026-10-11
72.5.200.0/21	AS19024 INTERNAP-BLK5 - Unitas Global	No ROA	-	2026-10-11
72.5.203.0/24	AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC	No ROA	-	2026-10-11
72.5.208.0/21	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.216.0/22	AS14744 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.220.0/22	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
72.5.224.0/21	AS12182 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.228.0/22	AS12182 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.232.0/21	AS14743 INTERNAP-BLOCK-4 - Unitas Global	No ROA	-	2026-10-11
72.5.240.0/21	AS13791 INTERNAP-BLK3 - Unitas Global	No ROA	-	2026-10-11
72.5.248.0/21	AS12179 INTERNAP-2BLK - Unitas Global	No ROA	-	2026-10-11
72.5.251.0/24	AS13789 INTERNAP-BLK3 - Unitas Global	No ROA	-	2026-10-11

More Specific Prefixes

Prefix	AS	Country	Status
72.5.0.0/20	AS14743	🇺🇸US	allocated
72.5.16.0/22	AS16509	🇺🇸US	allocated
72.5.20.0/22	AS14742	🇺🇸US	allocated
72.5.24.0/21	AS14742	🇺🇸US	allocated
72.5.32.0/22	AS32695	🇺🇸US	allocated
72.5.36.0/22	AS26654	🇺🇸US	allocated
72.5.40.0/23		🇺🇸US	allocated
72.5.42.0/23	AS399629	🇺🇸US	allocated
72.5.44.0/23		🇺🇸US	allocated
72.5.46.0/23	AS399244	🇺🇸US	allocated
72.5.48.0/20	AS14744	🇺🇸US	allocated
72.5.64.0/19		🇺🇸US	allocated
72.5.96.0/22	AS16509	🇺🇸US	allocated
72.5.100.0/22	AS1828	🇺🇸US	allocated
72.5.104.0/21		🇺🇸US	allocated
72.5.112.0/22		🇺🇸US	allocated
72.5.116.0/22	AS16509	🇺🇸US	allocated
72.5.120.0/21	AS19745	🇺🇸US	allocated
72.5.128.0/20	AS16509	🇺🇸US	allocated
72.5.144.0/20	AS10913	🇺🇸US	allocated
72.5.160.0/22		🇺🇸US	allocated
72.5.164.0/22		🇺🇸US	allocated
72.5.168.0/22	AS14743	🇺🇸US	allocated
72.5.172.0/22	AS16509	🇺🇸US	allocated
72.5.176.0/20		🇺🇸US	allocated
72.5.192.0/23		🇺🇸US	allocated
72.5.194.0/24		🇺🇸US	allocated
72.5.195.0/24		🇺🇸US	allocated
72.5.196.0/22		🇺🇸US	allocated
72.5.200.0/23		🇺🇸US	allocated
72.5.202.0/24		🇺🇸US	allocated
72.5.203.0/24	AS3561	🇺🇸US	allocated
72.5.204.0/22		🇺🇸US	allocated
72.5.208.0/21	AS14744	🇺🇸US	allocated
72.5.216.0/22	AS14744	🇺🇸US	allocated
72.5.220.0/22	AS16509	🇺🇸US	allocated
72.5.224.0/19		🇺🇸US	allocated

Transfer History

Registry transfers of 72.5.0.0/16, blocks inside it, or blocks containing it.

72.5.120.0/21Transfer · 2026-09-24
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
→
Okta, Inc.
🇺🇸 US ARIN
72.5.224.0/19M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.216.0/22M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.208.0/21M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.204.0/22M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.202.0/24M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.200.0/23M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.196.0/22M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.195.0/24M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN
72.5.192.0/23M&A · 2026-08-21
Unitas Global
🇺🇸 US ARIN
→
PF IPV4 Borrower, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-09-24	72.5.120.0/21	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	Okta, Inc. 🇺🇸 US ARIN	Transfer
2026-08-21	72.5.224.0/19	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.216.0/22	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.208.0/21	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.204.0/22	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.202.0/24	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.200.0/23	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.196.0/22	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.195.0/24	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A
2026-08-21	72.5.192.0/23	Unitas Global 🇺🇸 US ARIN	PF IPV4 Borrower, LLC 🇺🇸 US ARIN	M&A

View all 44 transfers →

Geolocation

Country🇺🇸United StatesUS

RegionCalifornia

CityMonrovia

Coordinates34.1399, -117.9970 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/72.5.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/72.5.0.0/16" | jq

External Links

RIPEstat