IPv4 R&E Routing Table Report 20:15 GMT Thu 31 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: 280101 Prefixes after maximum aggregation (per Origin AS): 120296 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 142956 Number of IPv4 prefixes with a valid ROA: 130260 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 149629 Total ASes present in the Internet Routing Table: 20741 Prefixes per ASN: 13.50 Origin-only ASes present in the Internet Routing Table: 17872 Origin ASes announcing only one prefix: 7978 Transit ASes present in the Internet Routing Table: 2869 Transit-only ASes present in the Internet Routing Table: 715 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: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 339 Number of instances of unregistered ASNs: 371 Number of 32-bit ASNs allocated by the RIRs: 46997 Number of 32-bit ASNs visible in the Routing Table: 8209 Prefixes from 32-bit ASNs in the Routing Table: 33399 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: 98 Number of addresses announced to Internet: 1644741893 Equivalent to 98 /8s, 8 /16s and 197 /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: 89010 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35408 Total APNIC prefixes after maximum aggregation: 7539 APNIC Deaggregation factor: 4.70 Prefixes being announced from the APNIC address blocks: 34353 Unique aggregates announced from the APNIC address blocks: 7850 APNIC Region origin ASes present in the Internet Routing Table: 1204 APNIC Prefixes per ASN: 28.53 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 190 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 566 Number of APNIC addresses announced to Internet: 173532780 Equivalent to 10 /8s, 87 /16s and 230 /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: 126711 Total ARIN prefixes after maximum aggregation: 66556 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125257 Unique aggregates announced from the ARIN address blocks: 68253 ARIN Region origin ASes present in the Internet Routing Table: 9348 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3894 ARIN Region transit ASes present in the Internet Routing Table: 884 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: 2211 Number of ARIN addresses announced to Internet: 1028339465 Equivalent to 61 /8s, 75 /16s and 55 /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: 50494 Total RIPE prefixes after maximum aggregation: 27218 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51903 Unique aggregates announced from the RIPE address blocks: 37909 RIPE Region origin ASes present in the Internet Routing Table: 4668 RIPE Prefixes per ASN: 11.12 RIPE Region origin ASes announcing only one prefix: 1951 RIPE Region transit ASes present in the Internet Routing Table: 703 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1920 Number of RIPE addresses announced to Internet: 287354448 Equivalent to 17 /8s, 32 /16s and 174 /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: 55809 Total LACNIC prefixes after maximum aggregation: 16348 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54083 Unique aggregates announced from the LACNIC address blocks: 24317 LACNIC Region origin ASes present in the Internet Routing Table: 4394 LACNIC Prefixes per ASN: 12.31 LACNIC Region origin ASes announcing only one prefix: 1562 LACNIC Region transit ASes present in the Internet Routing Table: 873 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: 3368 Number of LACNIC addresses announced to Internet: 109027392 Equivalent to 6 /8s, 127 /16s and 160 /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: 11340 Total AfriNIC prefixes after maximum aggregation: 2381 AfriNIC Deaggregation factor: 4.76 Prefixes being announced from the AfriNIC address blocks: 14407 Unique aggregates announced from the AfriNIC address blocks: 4532 AfriNIC Region origin ASes present in the Internet Routing Table: 282 AfriNIC Prefixes per ASN: 51.09 AfriNIC Region origin ASes announcing only one prefix: 97 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 144 Number of AfriNIC addresses announced to Internet: 46367744 Equivalent to 2 /8s, 195 /16s and 132 /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 12188 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2826 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1660 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1643 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 132525 550 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13690 40976 5285 AMAZON-02, US 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2893 219 1737 USDA-1, US 36352 2558 209 1142 AS-COLOCROSSING, US 367 2441 2964 1140 DNIC-ASBLK-00306-00371, US 6167 1940 4025 518 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4888 264 CENTURYLINK-US-LEGACY-QWEST, US 7018 1600 22828 1202 ATT-INTERNET4, 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 1192 93 970 AKAMAI-ASN1, NL 3257 1065 2083 815 GTT-BACKBONE GTT, US 34984 941 118 607 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 802 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 570 52 24 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 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 7240 2009 886 UNINET, MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1015 2487 55 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 11172 726 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 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 24835 1425 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 1015 388 20 LINKdotNET-AS, EG 37069 957 1112 11 MOBINIL, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 568 518 29 Vodafone-, EG 36992 507 1091 216 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 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 13690 40976 5285 AMAZON-02, US 9808 12188 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7240 2009 886 UNINET, MX 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2893 219 1737 USDA-1, US 56046 2826 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2558 209 1142 AS-COLOCROSSING, US 367 2441 2964 1140 DNIC-ASBLK-00306-00371, US 11830 1984 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 12188 12073 CHINAMOBILE-CN China Mobile Communications Grou 8151 7240 6354 UNINET, MX 22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2826 2637 CMNET-JIANGSU-AP China Mobile communications co 11830 1984 1920 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1660 1610 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1940 1422 CELLCO-PART, 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 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 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 /13:216 /14:591 /15:1120 /16:7766 /17:3491 /18:4264 /19:7816 /20:13328 /21:16030 /22:28669 /23:29413 /24:166878 /25:67 /26:85 /27:52 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3770 7240 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13690 AMAZON-02, US 11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1356 BRSPD-PUBLIC, US 36352 1017 2558 AS-COLOCROSSING, US 10620 996 1690 Telmex Colombia S.A., CO 209 962 1649 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) ---------------------------------------------- 1:28 2:448 3:853 4:5 5:799 6:145 7:5 8:657 11:171 12:957 13:399 14:112 15:311 16:247 17:3 18:891 20:191 21:4 22:188 23:2656 24:681 27:26 29:19 31:476 32:18 33:1 34:10 35:175 36:2845 37:747 38:2633 39:591 40:84 41:1110 42:21 43:224 44:31 45:4194 46:1000 47:111 49:28 50:478 51:385 52:1383 54:319 55:1096 56:11 57:23 58:17 59:34 60:31 61:61 62:515 63:782 64:1941 65:1121 66:1622 67:1101 68:373 69:1262 70:455 71:190 72:696 74:967 75:320 76:265 77:466 78:358 79:241 80:309 81:370 82:751 83:235 84:337 85:481 86:250 87:216 88:302 89:655 90:108 91:988 92:696 93:471 94:1023 95:637 96:266 97:53 98:502 99:191 100:40 101:26 102:417 103:1290 104:1687 105:186 106:40 107:1560 108:531 109:432 110:48 111:2104 112:749 113:39 114:54 115:18 116:52 117:1162 118:76 119:84 120:1470 121:50 122:60 123:136 124:64 125:25 126:1 128:535 129:400 130:683 131:1016 132:567 133:212 134:474 135:127 136:675 137:525 138:1024 139:448 140:763 141:377 142:1040 143:827 144:431 145:155 146:683 147:511 148:1020 149:737 150:210 151:819 152:623 153:131 154:1220 155:898 156:961 157:409 158:577 159:723 160:858 161:692 162:1045 163:442 164:739 165:645 166:815 167:694 168:1549 169:165 170:1741 171:104 172:1330 173:827 174:359 175:87 176:817 177:1028 178:616 179:848 180:42 181:2255 182:31 183:1112 184:457 185:3407 186:2842 187:1487 188:829 189:1968 190:5972 191:545 192:5285 193:1828 194:1196 195:945 196:723 197:1189 198:2766 199:5107 200:4623 201:3789 202:993 203:702 204:2294 205:1811 206:1590 207:1637 208:1528 209:1982 210:358 211:469 212:941 213:784 214:942 215:37 216:2629 217:459 218:564 219:18 220:32 221:469 222:24 223:1165 End of report