IPv4 R&E Routing Table Report 20:15 GMT Sun 12 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: 278723 Prefixes after maximum aggregation (per Origin AS): 118954 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142708 Number of IPv4 prefixes with a valid ROA: 130440 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 148074 Total ASes present in the Internet Routing Table: 20265 Prefixes per ASN: 13.75 Origin-only ASes present in the Internet Routing Table: 17496 Origin ASes announcing only one prefix: 7827 Transit ASes present in the Internet Routing Table: 2769 Transit-only ASes present in the Internet Routing Table: 675 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: 47693 Number of 32-bit ASNs visible in the Routing Table: 7999 Prefixes from 32-bit ASNs in the Routing Table: 33255 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: 100 Number of addresses announced to Internet: 1612801189 Equivalent to 96 /8s, 33 /16s and 100 /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: 87456 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38705 Total APNIC prefixes after maximum aggregation: 7857 APNIC Deaggregation factor: 4.93 Prefixes being announced from the APNIC address blocks: 37728 Unique aggregates announced from the APNIC address blocks: 8233 APNIC Region origin ASes present in the Internet Routing Table: 1133 APNIC Prefixes per ASN: 33.30 APNIC Region origin ASes announcing only one prefix: 432 APNIC Region transit ASes present in the Internet Routing Table: 182 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: 508 Number of APNIC addresses announced to Internet: 164398700 Equivalent to 9 /8s, 204 /16s and 134 /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: 126818 Total ARIN prefixes after maximum aggregation: 66049 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124313 Unique aggregates announced from the ARIN address blocks: 67685 ARIN Region origin ASes present in the Internet Routing Table: 9206 ARIN Prefixes per ASN: 13.50 ARIN Region origin ASes announcing only one prefix: 3843 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: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2177 Number of ARIN addresses announced to Internet: 1019771113 Equivalent to 60 /8s, 200 /16s and 120 /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: 46403 Total RIPE prefixes after maximum aggregation: 25871 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 48703 Unique aggregates announced from the RIPE address blocks: 36900 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: 1905 RIPE Region transit ASes present in the Internet Routing Table: 704 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: 1863 Number of RIPE addresses announced to Internet: 276043856 Equivalent to 16 /8s, 116 /16s and 24 /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: 56067 Total LACNIC prefixes after maximum aggregation: 16303 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54101 Unique aggregates announced from the LACNIC address blocks: 24000 LACNIC Region origin ASes present in the Internet Routing Table: 4346 LACNIC Prefixes per ASN: 12.45 LACNIC Region origin ASes announcing only one prefix: 1539 LACNIC Region transit ASes present in the Internet Routing Table: 836 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: 3292 Number of LACNIC addresses announced to Internet: 107959808 Equivalent to 6 /8s, 111 /16s and 86 /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: 10415 Total AfriNIC prefixes after maximum aggregation: 2620 AfriNIC Deaggregation factor: 3.98 Prefixes being announced from the AfriNIC address blocks: 13778 Unique aggregates announced from the AfriNIC address blocks: 5795 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 47.02 AfriNIC Region origin ASes announcing only one prefix: 108 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: 159 Number of AfriNIC addresses announced to Internet: 44518400 Equivalent to 2 /8s, 167 /16s and 76 /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 611 2169 463 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 14291 40988 5353 AMAZON-02, US 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3109 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 1863 2129 869 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1442 683 716 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 820 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 6966 1889 784 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 1166 371 22 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 1212 379 95 RAYA-AS, EG 24863 1014 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 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 36935 365 106 112 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 5353 AMAZON-02, US 9808 13535 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 6966 1889 784 UNINET, MX 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3109 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 6966 6182 UNINET, MX 22773 4108 3744 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: 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 /10:30 /11:50 /12:158 /13:214 /14:585 /15:1097 /16:7563 /17:3418 /18:4125 /19:7613 /20:12542 /21:15799 /22:28346 /23:28876 /24:168043 /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 3800 6966 UNINET, MX 22773 2587 4108 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2391 14291 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1057 1442 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) ---------------------------------------------- 1:26 2:294 3:936 4:5 5:617 6:157 7:5 8:629 9:5 11:171 12:884 13:503 14:172 15:343 16:274 17:3 18:901 20:196 21:4 22:188 23:2581 24:685 27:56 29:19 31:496 32:13 34:11 35:181 36:3185 37:810 38:2477 39:739 40:94 41:1016 42:145 43:193 44:27 45:4251 46:1007 47:144 49:22 50:482 51:391 52:1440 54:352 55:1184 56:11 57:28 58:17 59:29 60:147 61:92 62:536 63:761 64:1801 65:1026 66:1571 67:1072 68:386 69:1149 70:435 71:170 72:757 74:980 75:310 76:242 77:422 78:304 79:269 80:318 81:387 82:757 83:200 84:346 85:552 86:248 87:192 88:293 89:702 90:105 91:909 92:669 93:431 94:864 95:444 96:265 97:50 98:495 99:245 100:30 101:22 102:418 103:1048 104:1619 105:174 106:74 107:1645 108:523 109:368 110:107 111:2455 112:1059 113:32 114:40 115:63 116:58 117:1431 118:70 119:69 120:1630 121:30 122:94 123:193 124:179 125:23 128:555 129:402 130:626 131:1063 132:577 133:222 134:494 135:125 136:671 137:498 138:1017 139:454 140:728 141:360 142:1191 143:861 144:408 145:140 146:648 147:486 148:978 149:660 150:208 151:788 152:664 153:176 154:1202 155:898 156:1169 157:438 158:588 159:756 160:607 161:698 162:1001 163:441 164:754 165:621 166:812 167:678 168:1505 169:153 170:1851 171:100 172:1295 173:798 174:369 175:133 176:453 177:874 178:672 179:867 180:36 181:2382 182:28 183:1464 184:449 185:3278 186:3231 187:1639 188:784 189:1805 190:6319 191:556 192:5082 193:1728 194:1083 195:967 196:748 197:1137 198:2689 199:5237 200:4407 201:3653 202:1003 203:799 204:2156 205:1818 206:1524 207:1605 208:1541 209:1944 210:490 211:510 212:984 213:724 214:947 215:40 216:2429 217:487 218:714 219:18 220:128 221:475 222:26 223:1491 End of report