IPv4 R&E Routing Table Report 20:15 GMT Wed 15 Oct, 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: 277841 Prefixes after maximum aggregation (per Origin AS): 118099 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141757 Number of IPv4 prefixes with a valid ROA: 129583 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 148047 Total ASes present in the Internet Routing Table: 20284 Prefixes per ASN: 13.70 Origin-only ASes present in the Internet Routing Table: 17518 Origin ASes announcing only one prefix: 7849 Transit ASes present in the Internet Routing Table: 2766 Transit-only ASes present in the Internet Routing Table: 685 Paths with bogon ASNs present in the IPv4 Routing Table: 50 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 312 Number of instances of unregistered ASNs: 378 Number of 32-bit ASNs allocated by the RIRs: 47715 Number of 32-bit ASNs visible in the Routing Table: 8003 Prefixes from 32-bit ASNs in the Routing Table: 32747 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 99 Number of addresses announced to Internet: 1617129125 Equivalent to 96 /8s, 99 /16s and 110 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 86969 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38877 Total APNIC prefixes after maximum aggregation: 7879 APNIC Deaggregation factor: 4.93 Prefixes being announced from the APNIC address blocks: 37844 Unique aggregates announced from the APNIC address blocks: 8243 APNIC Region origin ASes present in the Internet Routing Table: 1169 APNIC Prefixes per ASN: 32.37 APNIC Region origin ASes announcing only one prefix: 453 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 538 Number of APNIC addresses announced to Internet: 164420204 Equivalent to 9 /8s, 204 /16s and 218 /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: 126085 Total ARIN prefixes after maximum aggregation: 65533 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123728 Unique aggregates announced from the ARIN address blocks: 67370 ARIN Region origin ASes present in the Internet Routing Table: 9174 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3838 ARIN Region transit ASes present in the Internet Routing Table: 842 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: 2169 Number of ARIN addresses announced to Internet: 1019763689 Equivalent to 60 /8s, 200 /16s and 91 /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: 45624 Total RIPE prefixes after maximum aggregation: 25394 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48190 Unique aggregates announced from the RIPE address blocks: 36364 RIPE Region origin ASes present in the Internet Routing Table: 4467 RIPE Prefixes per ASN: 10.79 RIPE Region origin ASes announcing only one prefix: 1894 RIPE Region transit ASes present in the Internet Routing Table: 686 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1819 Number of RIPE addresses announced to Internet: 280236368 Equivalent to 16 /8s, 180 /16s and 17 /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: 56294 Total LACNIC prefixes after maximum aggregation: 16340 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54364 Unique aggregates announced from the LACNIC address blocks: 23967 LACNIC Region origin ASes present in the Internet Routing Table: 4351 LACNIC Prefixes per ASN: 12.49 LACNIC Region origin ASes announcing only one prefix: 1552 LACNIC Region transit ASes present in the Internet Routing Table: 848 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3306 Number of LACNIC addresses announced to Internet: 108112128 Equivalent to 6 /8s, 113 /16s and 169 /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: 10649 Total AfriNIC prefixes after maximum aggregation: 2702 AfriNIC Deaggregation factor: 3.94 Prefixes being announced from the AfriNIC address blocks: 13616 Unique aggregates announced from the AfriNIC address blocks: 5719 AfriNIC Region origin ASes present in the Internet Routing Table: 308 AfriNIC Prefixes per ASN: 44.21 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 171 Number of AfriNIC addresses announced to Internet: 44486912 Equivalent to 2 /8s, 166 /16s and 209 /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 13629 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3100 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1740 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 941 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 673 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 611 2169 463 SINET-AS Research Organization of Informa 4780 598 272 207 SEEDNET Digital United Inc., TW 132525 590 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 14291 40988 5351 AMAZON-02, US 22773 4250 3066 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3119 242 1749 USDA-1, US 36352 2552 208 1165 AS-COLOCROSSING, US 6167 1951 4047 512 CELLCO-PART, US 11776 1907 259 215 ATLANTICBB-JOHNSTOWN, US 367 1877 2132 878 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1443 683 717 BRIGHTSPEED, 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 20940 1231 96 1006 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 856 1841 16 TE-AS TE-AS, EG 212238 722 53 640 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 524 129 441 OPENTRANSIT, FR 35819 521 517 104 MOBILY-AS Etihad Etisalat Company Mobily, 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 7255 1960 782 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1671 240 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1272 371 23 Telefonica del Peru S.A.A., PE 11664 1247 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 27651 647 92 49 ENTEL CHILE S.A., CL 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 1208 378 94 RAYA-AS, EG 24863 1013 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 598 1093 294 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 576 82 3 KENET-AS, KE 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 369 106 112 Vodafone-, EG 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 14291 40988 5351 AMAZON-02, US 9808 13629 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7255 1960 782 UNINET, MX 22773 4250 3066 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3119 242 1749 USDA-1, US 56046 3100 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2552 208 1165 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1951 4047 512 CELLCO-PART, US 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 13629 13510 CHINAMOBILE-CN China Mobile Communications Grou 8151 7255 6473 UNINET, MX 22773 4250 3886 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3100 2907 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1907 1692 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1740 1662 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1951 1439 CELLCO-PART, US 36352 2552 1387 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 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 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /8:14 /9:11 /10:31 /11:50 /12:158 /13:214 /14:585 /15:1097 /16:7559 /17:3420 /18:4121 /19:7671 /20:12583 /21:15841 /22:28235 /23:28782 /24:167229 /25:64 /26:82 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3928 7255 UNINET, MX 22773 2649 4250 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2392 14291 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1057 1443 BRIGHTSPEED, US 36352 1037 2552 AS-COLOCROSSING, US 10620 982 1671 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 919 1247 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1907 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:296 3:937 4:5 5:610 6:157 7:5 8:624 9:5 11:171 12:876 13:501 14:172 15:345 16:273 17:3 18:901 20:195 21:4 22:188 23:2644 24:688 27:56 29:19 31:473 32:13 34:10 35:183 36:3195 37:545 38:2518 39:747 40:94 41:1042 42:145 43:197 44:28 45:4145 46:1013 47:147 49:23 50:470 51:391 52:1419 54:352 55:1087 56:11 57:29 58:17 59:29 60:147 61:91 62:537 63:737 64:1793 65:1006 66:1554 67:995 68:385 69:1155 70:444 71:171 72:756 74:983 75:310 76:246 77:407 78:328 79:266 80:322 81:388 82:762 83:200 84:332 85:553 86:254 87:195 88:288 89:698 90:105 91:909 92:669 93:426 94:843 95:445 96:265 97:51 98:410 99:245 100:22 101:22 102:471 103:1058 104:1535 105:172 106:74 107:1687 108:528 109:361 110:92 111:2474 112:1104 113:32 114:44 115:63 116:52 117:1447 118:72 119:69 120:1640 121:30 122:94 123:192 124:178 125:24 128:547 129:442 130:632 131:1060 132:578 133:222 134:497 135:124 136:673 137:502 138:1009 139:450 140:735 141:364 142:1173 143:871 144:402 145:142 146:634 147:472 148:983 149:733 150:209 151:778 152:664 153:176 154:1021 155:895 156:1108 157:434 158:598 159:755 160:616 161:699 162:1004 163:437 164:757 165:635 166:804 167:683 168:1504 169:151 170:1858 171:100 172:1295 173:785 174:288 175:124 176:418 177:887 178:677 179:869 180:36 181:2394 182:29 183:1477 184:435 185:3278 186:3229 187:1688 188:810 189:1872 190:6253 191:544 192:5057 193:1712 194:1056 195:958 196:753 197:1137 198:2664 199:5227 200:4374 201:3675 202:999 203:798 204:2154 205:1818 206:1520 207:1599 208:1546 209:1938 210:491 211:513 212:983 213:707 214:945 215:40 216:2434 217:511 218:716 219:18 220:128 221:476 222:26 223:1504 End of report