IPv4 R&E Routing Table Report 20:15 GMT Fri 10 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: 280454 Prefixes after maximum aggregation (per Origin AS): 118436 Deaggregation factor: 2.37 Unique aggregates announced (without unneeded subnets): 141973 Number of IPv4 prefixes with a valid ROA: 131879 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 148366 Total ASes present in the Internet Routing Table: 20094 Prefixes per ASN: 13.96 Origin-only ASes present in the Internet Routing Table: 17344 Origin ASes announcing only one prefix: 7738 Transit ASes present in the Internet Routing Table: 2750 Transit-only ASes present in the Internet Routing Table: 656 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 316 Number of instances of unregistered ASNs: 345 Number of 32-bit ASNs allocated by the RIRs: 47665 Number of 32-bit ASNs visible in the Routing Table: 7940 Prefixes from 32-bit ASNs in the Routing Table: 33032 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 106 Number of addresses announced to Internet: 1613402789 Equivalent to 96 /8s, 42 /16s and 146 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 88383 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38705 Total APNIC prefixes after maximum aggregation: 7870 APNIC Deaggregation factor: 4.92 Prefixes being announced from the APNIC address blocks: 37773 Unique aggregates announced from the APNIC address blocks: 8266 APNIC Region origin ASes present in the Internet Routing Table: 1155 APNIC Prefixes per ASN: 32.70 APNIC Region origin ASes announcing only one prefix: 442 APNIC Region transit ASes present in the Internet Routing Table: 190 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 521 Number of APNIC addresses announced to Internet: 164415084 Equivalent to 9 /8s, 204 /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: 126843 Total ARIN prefixes after maximum aggregation: 66078 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124296 Unique aggregates announced from the ARIN address blocks: 67571 ARIN Region origin ASes present in the Internet Routing Table: 9212 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3850 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 2178 Number of ARIN addresses announced to Internet: 1019901929 Equivalent to 60 /8s, 202 /16s and 119 /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: 47005 Total RIPE prefixes after maximum aggregation: 25227 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49363 Unique aggregates announced from the RIPE address blocks: 36127 RIPE Region origin ASes present in the Internet Routing Table: 4271 RIPE Prefixes per ASN: 11.56 RIPE Region origin ASes announcing only one prefix: 1795 RIPE Region transit ASes present in the Internet Routing Table: 674 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: 1761 Number of RIPE addresses announced to Internet: 275550800 Equivalent to 16 /8s, 108 /16s and 146 /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: 57229 Total LACNIC prefixes after maximum aggregation: 16378 LACNIC Deaggregation factor: 3.49 Prefixes being announced from the LACNIC address blocks: 55270 Unique aggregates announced from the LACNIC address blocks: 24158 LACNIC Region origin ASes present in the Internet Routing Table: 4366 LACNIC Prefixes per ASN: 12.66 LACNIC Region origin ASes announcing only one prefix: 1541 LACNIC Region transit ASes present in the Internet Routing Table: 845 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: 3317 Number of LACNIC addresses announced to Internet: 108903680 Equivalent to 6 /8s, 125 /16s and 189 /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: 10356 Total AfriNIC prefixes after maximum aggregation: 2628 AfriNIC Deaggregation factor: 3.94 Prefixes being announced from the AfriNIC address blocks: 13646 Unique aggregates announced from the AfriNIC address blocks: 5750 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 45.49 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 72 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 163 Number of AfriNIC addresses announced to Internet: 44519680 Equivalent to 2 /8s, 167 /16s and 81 /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 13535 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3076 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1737 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 939 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 674 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 4780 598 272 207 SEEDNET Digital United Inc., TW 132525 588 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 14305 40997 5364 AMAZON-02, US 22773 4011 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3114 241 1742 USDA-1, US 36352 2561 209 1172 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1906 259 215 ATLANTICBB-JOHNSTOWN, US 367 1872 2135 873 DNIC-ASBLK-00306-00371, US 209 1650 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1441 681 715 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 39891 1934 129 48 ALJAWWALSTC-AS, SA 20940 1235 97 1007 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 862 1304 131 SAUDINETSTC-AS, SA 8452 813 1841 16 TE-AS TE-AS, EG 212238 722 53 640 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 524 129 441 OPENTRANSIT, FR 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 7990 2128 786 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1669 239 1206 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1237 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1009 2486 56 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 27651 650 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 1211 385 94 RAYA-AS, EG 24863 1012 389 22 LINKdotNET-AS, EG 37069 961 1096 13 MOBINIL, EG 36992 593 1091 304 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 463 208 334 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 37693 344 599 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 14305 40997 5364 AMAZON-02, US 9808 13535 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7990 2128 786 UNINET, MX 22773 4011 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3114 241 1742 USDA-1, US 56046 3076 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2561 209 1172 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1947 4036 513 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 13535 13416 CHINAMOBILE-CN China Mobile Communications Grou 8151 7990 7204 UNINET, MX 22773 4011 3650 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3076 2883 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1934 1886 ALJAWWALSTC-AS, SA 11776 1906 1691 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1737 1659 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1947 1434 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 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: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 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 /10:30 /11:50 /12:158 /13:215 /14:585 /15:1097 /16:7567 /17:3421 /18:4126 /19:7760 /20:12893 /21:16144 /22:28273 /23:29122 /24:168749 /25:64 /26:81 /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 4205 7990 UNINET, MX 22773 2523 4011 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2394 14305 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1057 1441 BRIGHTSPEED, US 36352 1041 2561 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1650 CENTURYLINK-US-LEGACY-QWEST, US 11664 909 1237 Techtel LMDS Comunicaciones Interactivas S.A., AR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:488 3:937 4:5 5:763 6:157 7:5 8:627 9:5 11:171 12:882 13:507 14:172 15:344 16:274 17:3 18:901 20:195 21:4 22:188 23:2555 24:685 27:56 29:19 31:469 32:13 34:10 35:180 36:3186 37:856 38:2497 39:739 40:94 41:1019 42:145 43:196 44:27 45:4199 46:989 47:141 49:22 50:474 51:391 52:1440 54:352 55:1183 56:11 57:29 58:17 59:27 60:147 61:92 62:543 63:759 64:1936 65:1029 66:1632 67:1079 68:386 69:1152 70:447 71:172 72:765 74:991 75:310 76:243 77:421 78:299 79:232 80:314 81:375 82:753 83:198 84:334 85:517 86:247 87:184 88:293 89:689 90:105 91:894 92:666 93:419 94:967 95:684 96:265 97:50 98:495 99:243 100:30 101:22 102:427 103:1074 104:1615 105:174 106:74 107:1579 108:524 109:353 110:107 111:2457 112:1059 113:31 114:32 115:63 116:58 117:1432 118:70 119:70 120:1630 121:30 122:95 123:193 124:178 125:26 128:555 129:402 130:628 131:1068 132:587 133:222 134:496 135:125 136:668 137:504 138:1006 139:458 140:727 141:355 142:1144 143:867 144:396 145:161 146:650 147:484 148:987 149:665 150:208 151:791 152:658 153:175 154:1205 155:898 156:1160 157:437 158:586 159:745 160:608 161:701 162:1000 163:442 164:749 165:621 166:810 167:678 168:1506 169:153 170:1855 171:96 172:1287 173:801 174:368 175:135 176:442 177:901 178:689 179:884 180:36 181:2382 182:28 183:1464 184:446 185:3187 186:3228 187:1736 188:771 189:2007 190:6322 191:551 192:5083 193:1714 194:1033 195:914 196:748 197:1139 198:2687 199:5242 200:4413 201:3637 202:1004 203:792 204:2155 205:1820 206:1542 207:1594 208:1549 209:1943 210:490 211:509 212:972 213:713 214:952 215:40 216:2433 217:475 218:714 219:18 220:124 221:475 222:26 223:1491 End of report