[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Jun 1 20:16:30 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 01 Jun, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 266797
Prefixes after maximum aggregation (per Origin AS): 117228
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 137457
Number of IPv4 prefixes with a valid ROA: 120541
Number of IPv4 prefixes with an invalid ROA: 41
Number of IPv4 prefixes with no ROA: 146215
Total ASes present in the Internet Routing Table: 20061
Prefixes per ASN: 13.30
Origin-only ASes present in the Internet Routing Table: 17309
Origin ASes announcing only one prefix: 7839
Transit ASes present in the Internet Routing Table: 2752
Transit-only ASes present in the Internet Routing Table: 710
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 320
Number of instances of unregistered ASNs: 324
Number of 32-bit ASNs allocated by the RIRs: 46553
Number of 32-bit ASNs visible in the Routing Table: 7697
Prefixes from 32-bit ASNs in the Routing Table: 28887
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 1560805853
Equivalent to 93 /8s, 8 /16s and 1 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 84091
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32729
Total APNIC prefixes after maximum aggregation: 7517
APNIC Deaggregation factor: 4.35
Prefixes being announced from the APNIC address blocks: 31087
Unique aggregates announced from the APNIC address blocks: 7569
APNIC Region origin ASes present in the Internet Routing Table: 1206
APNIC Prefixes per ASN: 25.78
APNIC Region origin ASes announcing only one prefix: 468
APNIC Region transit ASes present in the Internet Routing Table: 197
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 550
Number of APNIC addresses announced to Internet: 166643308
Equivalent to 9 /8s, 238 /16s and 198 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 127559
Total ARIN prefixes after maximum aggregation: 66814
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 124702
Unique aggregates announced from the ARIN address blocks: 67679
ARIN Region origin ASes present in the Internet Routing Table: 9441
ARIN Prefixes per ASN: 13.21
ARIN Region origin ASes announcing only one prefix: 3948
ARIN Region transit ASes present in the Internet Routing Table: 882
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2226
Number of ARIN addresses announced to Internet: 963664609
Equivalent to 57 /8s, 112 /16s and 90 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 49682
Total RIPE prefixes after maximum aggregation: 26711
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51510
Unique aggregates announced from the RIPE address blocks: 37460
RIPE Region origin ASes present in the Internet Routing Table: 4620
RIPE Prefixes per ASN: 11.15
RIPE Region origin ASes announcing only one prefix: 1946
RIPE Region transit ASes present in the Internet Routing Table: 700
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1905
Number of RIPE addresses announced to Internet: 285956176
Equivalent to 17 /8s, 11 /16s and 88 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 45398
Total LACNIC prefixes after maximum aggregation: 13624
LACNIC Deaggregation factor: 3.33
Prefixes being announced from the LACNIC address blocks: 44516
Unique aggregates announced from the LACNIC address blocks: 20283
LACNIC Region origin ASes present in the Internet Routing Table: 3671
LACNIC Prefixes per ASN: 12.13
LACNIC Region origin ASes announcing only one prefix: 1370
LACNIC Region transit ASes present in the Internet Routing Table: 765
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2864
Number of LACNIC addresses announced to Internet: 97508416
Equivalent to 5 /8s, 207 /16s and 220 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 11109
Total AfriNIC prefixes after maximum aggregation: 2348
AfriNIC Deaggregation factor: 4.73
Prefixes being announced from the AfriNIC address blocks: 14873
Unique aggregates announced from the AfriNIC address blocks: 4358
AfriNIC Region origin ASes present in the Internet Routing Table: 285
AfriNIC Prefixes per ASN: 52.19
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 152
Number of AfriNIC addresses announced to Internet: 46989056
Equivalent to 2 /8s, 204 /16s and 255 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 10879 8756 96 CHINAMOBILE-CN China Mobile Communication
56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1633 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 852 54 381 LCS-AS-AP LARUS Limited, HK
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 604 2170 464 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 517 848 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13581 40827 5190 AMAZON-02, US
22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2766 210 1699 USDA-1, US
36352 2557 210 1124 AS-COLOCROSSING, US
367 2448 2913 1179 DNIC-ASBLK-00306-00371, US
7018 2072 22882 1525 ATT-INTERNET4, US
11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1887 3867 499 CELLCO-PART, US
209 1661 4889 271 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1188 93 969 AKAMAI-ASN1, NL
3257 958 2078 772 GTT-BACKBONE GTT, US
3215 894 4818 289 France Telecom - Orange, FR
25019 817 1301 129 SAUDINETSTC-AS, SA
8452 792 1841 16 TE-AS TE-AS, EG
34984 676 74 406 TELLCOM-AS, TR
212238 640 47 566 CDNEXT, GB
203214 601 44 378 HULUMTELE, IQ
8376 575 53 21 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7422 1991 973 UNINET, MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
10620 1902 281 1294 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1197 371 22 Telefonica del Peru S.A.A., PE
26615 1035 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1479 389 16 LINKdotNET-AS, EG
29571 1136 100 74 ORANGE-COTE-IVOIRE, CI
24835 1053 535 35 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36935 577 122 154 Vodafone-, EG
36914 549 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 437 197 325 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13581 40827 5190 AMAZON-02, US
9808 10879 8756 96 CHINAMOBILE-CN China Mobile Communication
8151 7422 1991 973 UNINET, MX
22773 3345 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2766 210 1699 USDA-1, US
36352 2557 210 1124 AS-COLOCROSSING, US
367 2448 2913 1179 DNIC-ASBLK-00306-00371, US
7018 2072 22882 1525 ATT-INTERNET4, US
11830 1990 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10879 10783 CHINAMOBILE-CN China Mobile Communications Grou
8151 7422 6449 UNINET, MX
22773 3345 3179 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co
11776 1900 1689 ATLANTICBB-JOHNSTOWN, US
56041 1633 1543 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1479 1463 LINKdotNET-AS, EG
36352 2557 1433 AS-COLOCROSSING, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:13 /9:10 /10:30 /11:41 /12:150
/13:209 /14:573 /15:1101 /16:7645 /17:3452 /18:4241
/19:7684 /20:12646 /21:15349 /22:27787 /23:28298 /24:157345
/25:62 /26:82 /27:34 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3987 7422 UNINET, MX
22773 2496 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2373 13581 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
10620 1082 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1033 2557 AS-COLOCROSSING, US
19901 974 1265 BRSPD-PUBLIC, US
209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1900 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:476 3:797 4:5 5:791 6:155
7:6 8:676 11:171 12:994 13:388 14:115
15:311 16:247 17:7 18:889 20:185 21:4
22:188 23:2612 24:641 27:22 29:19 31:519
32:11 33:1 34:12 35:143 36:1830 37:1019
38:1955 39:552 40:62 41:1002 42:21 43:212
44:42 45:3797 46:948 47:93 49:20 50:350
51:387 52:1402 54:317 55:1095 56:11 57:19
58:16 59:31 60:16 61:74 62:536 63:752
64:1989 65:1090 66:1546 67:1006 68:420 69:1126
70:477 71:200 72:725 74:942 75:321 76:255
77:484 78:355 79:239 80:312 81:377 82:710
83:233 84:336 85:433 86:233 87:207 88:289
89:856 90:104 91:930 92:632 93:487 94:922
95:741 96:292 97:53 98:457 99:182 100:35
101:22 102:351 103:1215 104:1676 105:207 106:3
107:1562 108:555 109:398 110:35 111:1919 112:499
113:39 114:40 115:24 116:62 117:1042 118:71
119:88 120:1265 121:42 122:66 123:78 124:57
125:25 128:502 129:398 130:693 131:956 132:567
133:211 134:498 135:116 136:608 137:509 138:911
139:431 140:702 141:460 142:1056 143:692 144:441
145:136 146:693 147:517 148:878 149:781 150:352
151:638 152:491 153:129 154:1695 155:870 156:1421
157:398 158:559 159:736 160:880 161:639 162:1024
163:430 164:718 165:787 166:790 167:653 168:1127
169:164 170:1597 171:122 172:1380 173:801 174:285
175:62 176:779 177:861 178:505 179:706 180:45
181:1825 182:29 183:966 184:451 185:3509 186:2106
187:1461 188:837 189:1763 190:4185 191:455 192:5214
193:1884 194:1230 195:926 196:685 197:1545 198:2774
199:4955 200:3659 201:3305 202:1001 203:741 204:2177
205:1934 206:1547 207:1540 208:1476 209:1914 210:297
211:422 212:1033 213:776 214:977 215:42 216:2791
217:430 218:525 219:18 220:29 221:360 222:31
223:820
End of report
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