[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Jul 13 20:16:40 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 13 Jul, 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: 277094
Prefixes after maximum aggregation (per Origin AS): 120816
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 143310
Number of IPv4 prefixes with a valid ROA: 130502
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 146550
Total ASes present in the Internet Routing Table: 20962
Prefixes per ASN: 13.22
Origin-only ASes present in the Internet Routing Table: 18028
Origin ASes announcing only one prefix: 8093
Transit ASes present in the Internet Routing Table: 2934
Transit-only ASes present in the Internet Routing Table: 739
Paths with bogon ASNs present in the IPv4 Routing Table: 13
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 30
Max AS path prepend of ASN (265171) 25
Prefixes from unregistered ASNs in the Routing Table: 353
Number of instances of unregistered ASNs: 385
Number of 32-bit ASNs allocated by the RIRs: 46830
Number of 32-bit ASNs visible in the Routing Table: 8413
Prefixes from 32-bit ASNs in the Routing Table: 33118
Number of bogon 32-bit ASNs visible in the Routing Table: 74
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 1642525445
Equivalent to 97 /8s, 230 /16s and 243 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 44.4
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: 88461
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34275
Total APNIC prefixes after maximum aggregation: 7590
APNIC Deaggregation factor: 4.52
Prefixes being announced from the APNIC address blocks: 33107
Unique aggregates announced from the APNIC address blocks: 7923
APNIC Region origin ASes present in the Internet Routing Table: 1253
APNIC Prefixes per ASN: 26.42
APNIC Region origin ASes announcing only one prefix: 497
APNIC Region transit ASes present in the Internet Routing Table: 204
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 597
Number of APNIC addresses announced to Internet: 173215340
Equivalent to 10 /8s, 83 /16s and 14 /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: 126407
Total ARIN prefixes after maximum aggregation: 66529
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125016
Unique aggregates announced from the ARIN address blocks: 67786
ARIN Region origin ASes present in the Internet Routing Table: 9325
ARIN Prefixes per ASN: 13.41
ARIN Region origin ASes announcing only one prefix: 3877
ARIN Region transit ASes present in the Internet Routing Table: 880
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2192
Number of ARIN addresses announced to Internet: 1028071945
Equivalent to 61 /8s, 71 /16s and 34 /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: 50180
Total RIPE prefixes after maximum aggregation: 27476
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51539
Unique aggregates announced from the RIPE address blocks: 38279
RIPE Region origin ASes present in the Internet Routing Table: 4656
RIPE Prefixes per ASN: 11.07
RIPE Region origin ASes announcing only one prefix: 1966
RIPE Region transit ASes present in the Internet Routing Table: 695
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: 1909
Number of RIPE addresses announced to Internet: 286763600
Equivalent to 17 /8s, 23 /16s and 170 /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: 56522
Total LACNIC prefixes after maximum aggregation: 16689
LACNIC Deaggregation factor: 3.39
Prefixes being announced from the LACNIC address blocks: 54858
Unique aggregates announced from the LACNIC address blocks: 24920
LACNIC Region origin ASes present in the Internet Routing Table: 4571
LACNIC Prefixes per ASN: 12.00
LACNIC Region origin ASes announcing only one prefix: 1647
LACNIC Region transit ASes present in the Internet Routing Table: 932
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3564
Number of LACNIC addresses announced to Internet: 108867392
Equivalent to 6 /8s, 125 /16s and 47 /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: 9357
Total AfriNIC prefixes after maximum aggregation: 2272
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 12477
Unique aggregates announced from the AfriNIC address blocks: 4307
AfriNIC Region origin ASes present in the Internet Routing Table: 286
AfriNIC Prefixes per ASN: 43.63
AfriNIC Region origin ASes announcing only one prefix: 106
AfriNIC Region transit ASes present in the Internet Routing Table: 73
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151
Number of AfriNIC addresses announced to Internet: 45495808
Equivalent to 2 /8s, 182 /16s and 54 /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 11566 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 541 888 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic
132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile
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 13660 40959 5257 AMAZON-02, US
22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2854 216 1723 USDA-1, US
36352 2562 210 1141 AS-COLOCROSSING, US
367 2474 3083 1158 DNIC-ASBLK-00306-00371, US
6167 1927 4012 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1731 22854 1283 ATT-INTERNET4, US
209 1656 4889 270 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 1173 91 956 AKAMAI-ASN1, NL
3257 1042 2082 806 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
25019 855 1301 130 SAUDINETSTC-AS, SA
8452 839 1841 16 TE-AS TE-AS, EG
58224 692 447 493 TCI, IR
212238 657 46 581 CDNEXT, GB
8376 573 52 23 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 7480 2014 900 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1712 248 1232 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1015 2487 55 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
11172 720 122 78 Alestra, S. de R.L. de C.V., MX
27651 649 92 46 ENTEL CHILE S.A., CL
28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
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
29571 1067 100 72 ORANGE-COTE-IVOIRE, CI
24835 913 503 33 RAYA-AS, EG
37069 600 1112 11 MOBINIL, EG
24863 573 389 22 LINKdotNET-AS, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36914 566 82 3 KENET-AS, KE
36992 496 1057 211 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
2018 375 318 69 TENET-1, ZA
37693 343 599 42 TUNISIANA, TN
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 13660 40959 5257 AMAZON-02, US
9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7480 2014 900 UNINET, MX
22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2854 216 1723 USDA-1, US
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2562 210 1141 AS-COLOCROSSING, US
367 2474 3083 1158 DNIC-ASBLK-00306-00371, US
11830 1987 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 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou
8151 7480 6580 UNINET, MX
22773 3335 3170 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2590 2402 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp
36352 2562 1421 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
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
21861 UNALLOCATED 12.37.59.0/24 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
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, US
23.147.225.0/24 Origin: 27392 639-DATACENTERS, US
23.147.225.0/24 Transit: 3356 LEVEL3, US
23.147.226.0/24 Origin: 27392 639-DATACENTERS, US
23.147.226.0/24 Transit: 3356 LEVEL3, US
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 /8:14 /9:11 /10:31 /11:51 /12:159
/13:217 /14:591 /15:1115 /16:7719 /17:3482 /18:4242
/19:7763 /20:12865 /21:15880 /22:27476 /23:29347 /24:165899
/25:64 /26:81 /27:37 /28:17 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4017 7480 UNINET, MX
22773 2489 3335 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2341 13660 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1024 2562 AS-COLOCROSSING, US
19901 1022 1341 BRSPD-PUBLIC, US
10620 994 1712 Telmex Colombia S.A., CO
209 961 1656 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1902 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:36 2:439 3:847 4:5 5:708 6:149
7:5 8:649 11:171 12:971 13:400 14:113
15:308 16:247 17:3 18:891 20:188 21:4
22:188 23:2658 24:687 27:43 29:19 31:525
32:18 33:1 34:10 35:180 36:2317 37:730
38:2579 39:553 40:80 41:984 42:21 43:232
44:30 45:4323 46:990 47:108 49:26 50:414
51:388 52:1383 54:318 55:1106 56:11 57:24
58:16 59:35 60:33 61:65 62:539 63:781
64:1932 65:1135 66:1604 67:1093 68:386 69:1271
70:455 71:191 72:718 74:959 75:319 76:244
77:485 78:374 79:237 80:289 81:356 82:702
83:232 84:358 85:478 86:240 87:224 88:302
89:712 90:106 91:968 92:663 93:486 94:1060
95:740 96:276 97:53 98:509 99:194 100:42
101:26 102:374 103:1322 104:1696 105:190 106:40
107:1532 108:518 109:436 110:40 111:1940 112:618
113:37 114:56 115:29 116:58 117:1077 118:69
119:82 120:1419 121:50 122:62 123:131 124:66
125:25 126:1 128:524 129:396 130:671 131:1025
132:552 133:212 134:475 135:127 136:674 137:537
138:1025 139:444 140:721 141:369 142:1024 143:794
144:438 145:126 146:686 147:517 148:986 149:739
150:180 151:814 152:626 153:144 154:1214 155:910
156:993 157:394 158:559 159:742 160:827 161:655
162:1086 163:438 164:727 165:575 166:811 167:704
168:1567 169:163 170:1758 171:108 172:1326 173:834
174:361 175:87 176:776 177:1071 178:491 179:872
180:41 181:2258 182:28 183:1049 184:460 185:3500
186:2828 187:1704 188:818 189:1999 190:6021 191:535
192:5273 193:1877 194:1264 195:946 196:702 197:1081
198:2747 199:5031 200:4717 201:3834 202:1009 203:709
204:2231 205:2072 206:1580 207:1618 208:1508 209:2022
210:351 211:461 212:999 213:787 214:946 215:35
216:2582 217:451 218:548 219:18 220:37 221:449
222:24 223:1038
End of report
More information about the ren-bgp-stats-all
mailing list