IPAS

IP prefix and autonomous system archive
IPv4 prefixes
1,168,871
IPv6 prefixes
289,140
RAW size
24.5 MiB
Snapshot
2026-09-17 00:11:23
/home/www/fulltable/bgp.raw

Lookup

IPv4 CIDR distribution

/8
16   0.0%
/9
14   0.0%
/10
40   0.0%
/11
97   0.0%
/12
306   0.0%
/13
597   0.1%
/14
1,211   0.1%
/15
2,211   0.2%
/16
14,044   1.2%
/17
8,745   0.7%
/18
14,082   1.2%
/19
26,939   2.3%
/20
48,932   4.2%
/21
57,859   4.9%
/22
120,209   10.3%
/23
123,984   10.6%
/24
749,585   64.1%
Bar length uses logarithmic scale; values and percentages are exact.
Oldest update 2026-08-19 10:05:20 · newest 2026-09-17 00:11:23

IPv6 CIDR distribution

/16
1   0.0%
/19
1   0.0%
/20
14   0.0%
/21
3   0.0%
/22
6   0.0%
/23
6   0.0%
/24
49   0.0%
/25
12   0.0%
/26
19   0.0%
/27
18   0.0%
/28
163   0.1%
/29
5,902   2.0%
/30
787   0.3%
/31
396   0.1%
/32
27,690   9.6%
/33
6,296   2.2%
/34
6,111   2.1%
/35
2,114   0.7%
/36
10,600   3.7%
/37
1,500   0.5%
/38
2,915   1.0%
/39
1,926   0.7%
/40
25,121   8.7%
/41
2,054   0.7%
/42
3,207   1.1%
/43
1,516   0.5%
/44
27,971   9.7%
/45
4,801   1.7%
/46
6,325   2.2%
/47
9,716   3.4%
/48
141,900   49.1%
Bar length uses logarithmic scale; values and percentages are exact.
Oldest update 2026-08-19 10:05:18 · newest 2026-09-17 00:11:22

Top 10 AS by announced space

IPv4

ASAddresses
AS749227,464,192
AS16509218,780,160
AS7018117,263,616
AS4134111,863,552
AS807581,787,904
AS72173,133,056
AS476669,949,696
AS792268,336,896
AS483759,347,456
AS980856,736,000

IPv6

AS/48 equivalents
AS69394,318,908,425
AS7922554,172,423
AS3320538,772,025
AS11492459,719,936
AS4134385,006,035
AS9808289,671,108
AS17676285,278,208
AS5713269,484,033
AS7303269,353,876
AS148000268,828,678

Fast ranking from the same RAW scan used by the summary. Overlapping more-specific prefixes are included here; the individual ASN analysis removes overlaps.

Route freshness

Age since last updatePrefixesTop AS by prefixes
< 5 min357,040AS9808(13,470)   AS16509(9,212)   AS8151(8,079)   AS22773(4,843)   AS6327(3,839)
5-15 min92,320AS56041(2,156)   AS24444(1,148)   AS209(1,111)   AS56045(954)   AS174(950)
15-60 min335,244AS9808(7,170)   AS16509(5,498)   AS396982(3,884)   AS12389(2,803)   AS13335(2,765)
1-6 h451,466AS12479(6,995)   AS16509(6,758)   AS9498(5,084)   AS7552(3,562)   AS45899(2,934)
6-24 h128,572AS18403(4,168)   AS7552(3,680)   AS16509(2,388)   AS17622(1,977)   AS47583(1,940)
1-3 d24,170AS47331(5,302)   AS18403(3,183)   AS20115(1,769)   AS9294(715)   AS44244(638)
3-7 d21,517AS4538(2,329)   AS5384(1,915)   AS44244(628)   AS210312(570)   AS577(545)
7-30 d47,682AS577(3,312)   AS20115(3,178)   AS210312(2,884)   AS4538(1,585)   AS199340(1,146)
30-90 d0-
> 90 d0-
Top AS counts are current prefixes whose last update falls in the same age range.