IPv4 R&E Routing Table Report 20:15 GMT Sat 11 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: 278703 Prefixes after maximum aggregation (per Origin AS): 119074 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142725 Number of IPv4 prefixes with a valid ROA: 130447 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 148047 Total ASes present in the Internet Routing Table: 20315 Prefixes per ASN: 13.72 Origin-only ASes present in the Internet Routing Table: 17534 Origin ASes announcing only one prefix: 7848 Transit ASes present in the Internet Routing Table: 2781 Transit-only ASes present in the Internet Routing Table: 680 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: 315 Number of instances of unregistered ASNs: 344 Number of 32-bit ASNs allocated by the RIRs: 47679 Number of 32-bit ASNs visible in the Routing Table: 8037 Prefixes from 32-bit ASNs in the Routing Table: 33291 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: 1613074341 Equivalent to 96 /8s, 37 /16s and 143 /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: 87406 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38770 Total APNIC prefixes after maximum aggregation: 7909 APNIC Deaggregation factor: 4.90 Prefixes being announced from the APNIC address blocks: 37796 Unique aggregates announced from the APNIC address blocks: 8302 APNIC Region origin ASes present in the Internet Routing Table: 1163 APNIC Prefixes per ASN: 32.50 APNIC Region origin ASes announcing only one prefix: 446 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: 533 Number of APNIC addresses announced to Internet: 164392044 Equivalent to 9 /8s, 204 /16s and 108 /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: 126812 Total ARIN prefixes after maximum aggregation: 66064 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124293 Unique aggregates announced from the ARIN address blocks: 67619 ARIN Region origin ASes present in the Internet Routing Table: 9213 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3849 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: 2182 Number of ARIN addresses announced to Internet: 1019979753 Equivalent to 60 /8s, 203 /16s and 167 /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: 46387 Total RIPE prefixes after maximum aggregation: 25883 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 48694 Unique aggregates announced from the RIPE address blocks: 36869 RIPE Region origin ASes present in the Internet Routing Table: 4479 RIPE Prefixes per ASN: 10.87 RIPE Region origin ASes announcing only one prefix: 1906 RIPE Region transit ASes present in the Internet Routing Table: 707 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: 1860 Number of RIPE addresses announced to Internet: 276121936 Equivalent to 16 /8s, 117 /16s and 73 /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: 56063 Total LACNIC prefixes after maximum aggregation: 16346 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54111 Unique aggregates announced from the LACNIC address blocks: 24044 LACNIC Region origin ASes present in the Internet Routing Table: 4353 LACNIC Prefixes per ASN: 12.43 LACNIC Region origin ASes announcing only one prefix: 1538 LACNIC Region transit ASes present in the Internet Routing Table: 837 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: 3301 Number of LACNIC addresses announced to Internet: 107883264 Equivalent to 6 /8s, 110 /16s and 43 /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: 2618 AfriNIC Deaggregation factor: 3.96 Prefixes being announced from the AfriNIC address blocks: 13703 Unique aggregates announced from the AfriNIC address blocks: 5790 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 46.61 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 71 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: 161 Number of AfriNIC addresses announced to Internet: 44585728 Equivalent to 2 /8s, 168 /16s and 83 /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 14279 40988 5359 AMAZON-02, US 22773 4012 3052 362 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3111 241 1740 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 1865 2131 870 DNIC-ASBLK-00306-00371, US 209 1649 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 20940 1237 97 1008 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 811 1841 16 TE-AS TE-AS, EG 212238 722 53 640 CDNEXT, GB 34984 619 105 477 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 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 6907 1870 802 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 1240 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1168 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 1010 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 593 1091 304 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 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 14279 40988 5359 AMAZON-02, US 9808 13535 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 6907 1870 802 UNINET, MX 22773 4012 3052 362 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3111 241 1740 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 6907 6105 UNINET, MX 22773 4012 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 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 36352 2561 1389 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: 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 /16:7570 /17:3418 /18:4122 /19:7601 /20:12550 /21:15844 /22:28224 /23:28895 /24:168083 /25:62 /26:80 /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 3762 6907 UNINET, MX 22773 2523 4012 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 14279 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1057 1441 BRIGHTSPEED, US 36352 1041 2561 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 911 1240 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1906 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 2:294 3:932 4:5 5:616 6:157 7:5 8:628 9:5 11:171 12:881 13:506 14:172 15:343 16:274 17:3 18:901 20:196 21:4 22:188 23:2552 24:685 27:56 29:19 31:494 32:13 34:10 35:181 36:3186 37:791 38:2490 39:739 40:94 41:1018 42:145 43:198 44:27 45:4257 46:1009 47:144 49:22 50:482 51:391 52:1440 54:352 55:1182 56:11 57:29 58:17 59:29 60:147 61:92 62:538 63:761 64:1804 65:1028 66:1573 67:1079 68:386 69:1152 70:444 71:173 72:764 74:985 75:310 76:242 77:422 78:304 79:269 80:318 81:384 82:761 83:200 84:347 85:552 86:247 87:192 88:293 89:698 90:105 91:917 92:671 93:430 94:862 95:445 96:265 97:50 98:495 99:239 100:30 101:22 102:422 103:1080 104:1619 105:174 106:74 107:1581 108:525 109:368 110:107 111:2457 112:1059 113:32 114:40 115:63 116:60 117:1432 118:70 119:70 120:1630 121:30 122:95 123:193 124:178 125:26 128:553 129:402 130:631 131:1070 132:577 133:222 134:496 135:125 136:671 137:504 138:1014 139:454 140:729 141:361 142:1191 143:859 144:405 145:140 146:647 147:485 148:990 149:658 150:207 151:788 152:663 153:175 154:1238 155:899 156:1157 157:438 158:586 159:752 160:608 161:700 162:1001 163:441 164:753 165:621 166:812 167:678 168:1503 169:152 170:1849 171:100 172:1294 173:798 174:368 175:135 176:452 177:881 178:672 179:877 180:36 181:2383 182:28 183:1464 184:449 185:3264 186:3222 187:1629 188:782 189:1776 190:6333 191:555 192:5078 193:1729 194:1084 195:972 196:748 197:1137 198:2687 199:5229 200:4426 201:3658 202:1006 203:799 204:2155 205:1819 206:1544 207:1605 208:1549 209:1939 210:490 211:509 212:983 213:724 214:949 215:40 216:2430 217:487 218:714 219:18 220:128 221:475 222:26 223:1490 End of report