IPv4 R&E Routing Table Report 20:15 GMT Wed 29 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: 280580 Prefixes after maximum aggregation (per Origin AS): 119553 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 144000 Number of IPv4 prefixes with a valid ROA: 132151 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148232 Total ASes present in the Internet Routing Table: 20481 Prefixes per ASN: 13.70 Origin-only ASes present in the Internet Routing Table: 17664 Origin ASes announcing only one prefix: 7941 Transit ASes present in the Internet Routing Table: 2817 Transit-only ASes present in the Internet Routing Table: 703 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: 279 Number of instances of unregistered ASNs: 308 Number of 32-bit ASNs allocated by the RIRs: 47827 Number of 32-bit ASNs visible in the Routing Table: 8145 Prefixes from 32-bit ASNs in the Routing Table: 33543 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: 88 Number of addresses announced to Internet: 1620113821 Equivalent to 96 /8s, 144 /16s and 249 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 88993 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38683 Total APNIC prefixes after maximum aggregation: 8168 APNIC Deaggregation factor: 4.74 Prefixes being announced from the APNIC address blocks: 37417 Unique aggregates announced from the APNIC address blocks: 8052 APNIC Region origin ASes present in the Internet Routing Table: 1146 APNIC Prefixes per ASN: 32.65 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 188 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 534 Number of APNIC addresses announced to Internet: 163979364 Equivalent to 9 /8s, 198 /16s and 32 /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: 128116 Total ARIN prefixes after maximum aggregation: 65966 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125838 Unique aggregates announced from the ARIN address blocks: 69447 ARIN Region origin ASes present in the Internet Routing Table: 9217 ARIN Prefixes per ASN: 13.65 ARIN Region origin ASes announcing only one prefix: 3861 ARIN Region transit ASes present in the Internet Routing Table: 847 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2197 Number of ARIN addresses announced to Internet: 1022117865 Equivalent to 60 /8s, 236 /16s and 71 /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: 47108 Total RIPE prefixes after maximum aggregation: 26297 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 49527 Unique aggregates announced from the RIPE address blocks: 37312 RIPE Region origin ASes present in the Internet Routing Table: 4630 RIPE Prefixes per ASN: 10.70 RIPE Region origin ASes announcing only one prefix: 1966 RIPE Region transit ASes present in the Internet Routing Table: 728 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1906 Number of RIPE addresses announced to Internet: 280778064 Equivalent to 16 /8s, 188 /16s and 85 /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: 55904 Total LACNIC prefixes after maximum aggregation: 16500 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 53811 Unique aggregates announced from the LACNIC address blocks: 24098 LACNIC Region origin ASes present in the Internet Routing Table: 4365 LACNIC Prefixes per ASN: 12.33 LACNIC Region origin ASes announcing only one prefix: 1557 LACNIC Region transit ASes present in the Internet Routing Table: 850 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3336 Number of LACNIC addresses announced to Internet: 107593728 Equivalent to 6 /8s, 105 /16s and 192 /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: 10490 Total AfriNIC prefixes after maximum aggregation: 2394 AfriNIC Deaggregation factor: 4.38 Prefixes being announced from the AfriNIC address blocks: 13899 Unique aggregates announced from the AfriNIC address blocks: 5004 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 46.96 AfriNIC Region origin ASes announcing only one prefix: 113 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 172 Number of AfriNIC addresses announced to Internet: 45542144 Equivalent to 2 /8s, 182 /16s and 235 /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 13151 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 960 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 871 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 660 247 353 CMNET-JIANGXI-AP China Mobile communicati 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 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 14393 41100 5365 AMAZON-02, US 22773 4632 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3132 243 1761 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1864 2117 871 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1448 702 722 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 1222 95 1001 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 8452 892 1841 16 TE-AS TE-AS, EG 39891 874 55 22 ALJAWWALSTC-AS, SA 212238 642 45 564 CDNEXT, GB 34984 580 89 460 TELLCOM-AS, TR 51167 566 112 247 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 5511 528 129 445 OPENTRANSIT, FR 35819 503 499 102 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 6719 1889 789 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1665 235 1202 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1286 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1273 371 23 Telefonica del Peru S.A.A., PE 26615 1024 2486 56 TIM SA, BR 18881 902 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 650 41 193 UFINET PANAMA S.A., PA 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 1401 522 26 RAYA-AS, EG 24863 1043 389 22 LINKdotNET-AS, EG 37069 941 1096 13 MOBINIL, EG 36992 598 1088 299 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 36935 481 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 477 215 340 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 14393 41100 5365 AMAZON-02, US 9808 13151 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 6719 1889 789 UNINET, MX 22773 4632 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3132 243 1761 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1958 4060 504 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 13151 13032 CHINAMOBILE-CN China Mobile Communications Grou 8151 6719 5930 UNINET, MX 22773 4632 4230 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3183 2990 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1958 1454 CELLCO-PART, US 36352 2573 1408 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 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 22538 UNALLOCATED 12.131.3.0/24 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 /11:51 /12:158 /13:215 /14:585 /15:1103 /16:7584 /17:3401 /18:4091 /19:7574 /20:12498 /21:15792 /22:28504 /23:28814 /24:169916 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3669 6719 UNINET, MX 22773 2986 4632 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2423 14393 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1448 BRIGHTSPEED, US 36352 1038 2573 AS-COLOCROSSING, US 10620 996 1665 Telmex Colombia S.A., CO 11664 961 1286 Techtel LMDS Comunicaciones Interactivas S.A., AR 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 884 1908 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:32 2:355 3:959 4:5 5:705 6:158 7:5 8:616 9:3 11:171 12:881 13:491 14:173 15:345 16:278 17:3 18:898 20:199 21:4 22:188 23:2674 24:595 27:57 29:19 31:484 32:13 34:10 35:186 36:3228 37:550 38:2584 39:738 40:91 41:1002 42:146 43:199 44:26 45:4302 46:949 47:146 49:21 50:476 51:391 52:1457 54:352 55:1108 56:11 57:32 58:17 59:34 60:91 61:61 62:560 63:739 64:1968 65:1041 66:2250 67:1117 68:490 69:1198 70:444 71:169 72:739 74:1001 75:305 76:235 77:440 78:363 79:283 80:352 81:447 82:790 83:206 84:339 85:639 86:244 87:255 88:287 89:692 90:105 91:918 92:685 93:436 94:912 95:485 96:264 97:49 98:406 99:244 100:22 101:20 102:438 103:1060 104:1592 105:174 106:67 107:1694 108:530 109:368 110:92 111:2500 112:1131 113:32 114:39 115:64 116:51 117:1385 118:85 119:70 120:1689 121:31 122:61 123:178 124:86 125:23 128:559 129:376 130:652 131:1067 132:579 133:221 134:505 135:122 136:675 137:490 138:997 139:437 140:727 141:380 142:1201 143:898 144:424 145:146 146:656 147:477 148:994 149:721 150:210 151:790 152:747 153:179 154:1250 155:957 156:1161 157:443 158:598 159:753 160:613 161:694 162:1006 163:432 164:764 165:619 166:794 167:681 168:1477 169:159 170:1879 171:103 172:1310 173:792 174:287 175:102 176:421 177:912 178:652 179:905 180:35 181:2432 182:29 183:1494 184:438 185:3418 186:3273 187:1590 188:791 189:1755 190:6336 191:561 192:5095 193:1737 194:1119 195:973 196:707 197:1100 198:2698 199:5232 200:4480 201:3688 202:1001 203:777 204:2157 205:1806 206:1505 207:1722 208:1546 209:1918 210:364 211:502 212:1016 213:735 214:952 215:40 216:2509 217:485 218:657 219:18 220:87 221:481 222:24 223:1541 End of report