IPv4 R&E Routing Table Report 20:15 GMT Sat 18 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: 279372 Prefixes after maximum aggregation (per Origin AS): 118331 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 143407 Number of IPv4 prefixes with a valid ROA: 130146 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 149016 Total ASes present in the Internet Routing Table: 20297 Prefixes per ASN: 13.76 Origin-only ASes present in the Internet Routing Table: 17511 Origin ASes announcing only one prefix: 7889 Transit ASes present in the Internet Routing Table: 2786 Transit-only ASes present in the Internet Routing Table: 686 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: 285 Number of instances of unregistered ASNs: 351 Number of 32-bit ASNs allocated by the RIRs: 47753 Number of 32-bit ASNs visible in the Routing Table: 8050 Prefixes from 32-bit ASNs in the Routing Table: 33056 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: 103 Number of addresses announced to Internet: 1627933093 Equivalent to 97 /8s, 8 /16s and 73 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 87499 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38655 Total APNIC prefixes after maximum aggregation: 7857 APNIC Deaggregation factor: 4.92 Prefixes being announced from the APNIC address blocks: 37457 Unique aggregates announced from the APNIC address blocks: 8250 APNIC Region origin ASes present in the Internet Routing Table: 1137 APNIC Prefixes per ASN: 32.94 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 518 Number of APNIC addresses announced to Internet: 173532268 Equivalent to 10 /8s, 87 /16s and 228 /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: 127527 Total ARIN prefixes after maximum aggregation: 65890 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125344 Unique aggregates announced from the ARIN address blocks: 69070 ARIN Region origin ASes present in the Internet Routing Table: 9214 ARIN Prefixes per ASN: 13.60 ARIN Region origin ASes announcing only one prefix: 3854 ARIN Region transit ASes present in the Internet Routing Table: 849 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: 2185 Number of ARIN addresses announced to Internet: 1020570089 Equivalent to 60 /8s, 212 /16s and 169 /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: 45266 Total RIPE prefixes after maximum aggregation: 25272 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47661 Unique aggregates announced from the RIPE address blocks: 36035 RIPE Region origin ASes present in the Internet Routing Table: 4440 RIPE Prefixes per ASN: 10.73 RIPE Region origin ASes announcing only one prefix: 1902 RIPE Region transit ASes present in the Internet Routing Table: 700 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: 1830 Number of RIPE addresses announced to Internet: 280221264 Equivalent to 16 /8s, 179 /16s and 214 /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: 56946 Total LACNIC prefixes after maximum aggregation: 16390 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 54891 Unique aggregates announced from the LACNIC address blocks: 24128 LACNIC Region origin ASes present in the Internet Routing Table: 4388 LACNIC Prefixes per ASN: 12.51 LACNIC Region origin ASes announcing only one prefix: 1579 LACNIC Region transit ASes present in the Internet Routing Table: 856 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: 3348 Number of LACNIC addresses announced to Internet: 109003520 Equivalent to 6 /8s, 127 /16s and 67 /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: 10693 Total AfriNIC prefixes after maximum aggregation: 2687 AfriNIC Deaggregation factor: 3.98 Prefixes being announced from the AfriNIC address blocks: 13916 Unique aggregates announced from the AfriNIC address blocks: 5826 AfriNIC Region origin ASes present in the Internet Routing Table: 305 AfriNIC Prefixes per ASN: 45.63 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 169 Number of AfriNIC addresses announced to Internet: 44495872 Equivalent to 2 /8s, 166 /16s and 244 /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 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1741 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 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 586 77 427 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14377 41089 5398 AMAZON-02, US 22773 4298 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3113 241 1741 USDA-1, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1877 2135 874 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1438 682 723 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 1244 98 1018 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 864 1841 16 TE-AS TE-AS, EG 212238 721 53 639 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 35819 542 538 91 MOBILY-AS Etihad Etisalat Company Mobily, 5511 527 129 444 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 7881 2145 772 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1695 241 1221 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1273 371 23 Telefonica del Peru S.A.A., PE 11664 1253 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 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 52468 649 40 194 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 1296 445 96 RAYA-AS, EG 24863 1017 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 573 82 3 KENET-AS, KE 36935 484 123 133 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 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 14377 41089 5398 AMAZON-02, US 9808 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7881 2145 772 UNINET, MX 22773 4298 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3113 241 1741 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1950 4046 511 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 13647 13528 CHINAMOBILE-CN China Mobile Communications Grou 8151 7881 7109 UNINET, MX 22773 4298 3934 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1663 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1950 1439 CELLCO-PART, US 36352 2573 1405 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 /11:50 /12:160 /13:214 /14:587 /15:1095 /16:7671 /17:3415 /18:4134 /19:7756 /20:12671 /21:16153 /22:28400 /23:28869 /24:167901 /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 4118 7881 UNINET, MX 22773 2649 4298 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2413 14377 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1438 BRIGHTSPEED, US 36352 1039 2573 AS-COLOCROSSING, US 10620 1005 1695 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 924 1253 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 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 2:290 3:942 4:5 5:602 6:157 7:5 8:617 9:5 11:171 12:873 13:499 14:171 15:345 16:270 17:3 18:901 20:196 21:4 22:188 23:2702 24:597 27:56 29:19 31:470 32:13 34:11 35:184 36:3194 37:567 38:2565 39:748 40:94 41:1040 42:145 43:201 44:26 45:4215 46:945 47:147 49:22 50:473 51:391 52:1458 54:346 55:1093 56:11 57:28 58:17 59:33 60:91 61:61 62:535 63:740 64:1962 65:1014 66:1972 67:1050 68:505 69:1206 70:442 71:171 72:746 74:986 75:308 76:236 77:378 78:302 79:266 80:319 81:388 82:762 83:203 84:349 85:569 86:246 87:190 88:283 89:688 90:105 91:901 92:665 93:421 94:863 95:419 96:274 97:50 98:410 99:244 100:22 101:20 102:462 103:1049 104:1601 105:174 106:61 107:1701 108:532 109:347 110:92 111:2504 112:1099 113:32 114:39 115:63 116:56 117:1447 118:71 119:70 120:1649 121:30 122:62 123:177 124:86 125:21 128:551 129:402 130:650 131:1046 132:588 133:221 134:501 135:124 136:672 137:500 138:998 139:433 140:737 141:363 142:1182 143:871 144:410 145:143 146:661 147:476 148:996 149:732 150:211 151:781 152:704 153:176 154:1099 155:972 156:1155 157:438 158:595 159:749 160:611 161:706 162:986 163:433 164:756 165:638 166:799 167:679 168:1503 169:154 170:1859 171:101 172:1295 173:792 174:289 175:108 176:404 177:873 178:661 179:865 180:36 181:2419 182:29 183:1489 184:454 185:3123 186:3232 187:1772 188:761 189:1906 190:6210 191:533 192:5068 193:1708 194:1073 195:926 196:768 197:1128 198:2702 199:5229 200:4372 201:3642 202:992 203:785 204:2157 205:1834 206:1515 207:1736 208:1554 209:1935 210:338 211:507 212:974 213:705 214:947 215:40 216:2516 217:477 218:658 219:18 220:87 221:496 222:24 223:1507 End of report