IPv4 R&E Routing Table Report 20:15 GMT Tue 09 Sep, 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: 277971 Prefixes after maximum aggregation (per Origin AS): 118390 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141301 Number of IPv4 prefixes with a valid ROA: 131232 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 146696 Total ASes present in the Internet Routing Table: 20391 Prefixes per ASN: 13.63 Origin-only ASes present in the Internet Routing Table: 17582 Origin ASes announcing only one prefix: 7833 Transit ASes present in the Internet Routing Table: 2809 Transit-only ASes present in the Internet Routing Table: 688 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 341 Number of instances of unregistered ASNs: 370 Number of 32-bit ASNs allocated by the RIRs: 47358 Number of 32-bit ASNs visible in the Routing Table: 8103 Prefixes from 32-bit ASNs in the Routing Table: 33525 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 90 Number of addresses announced to Internet: 1624393989 Equivalent to 96 /8s, 210 /16s and 73 /24s Percentage of available address space announced: 43.9 Percentage of allocated address space announced: 43.9 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: 88646 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35523 Total APNIC prefixes after maximum aggregation: 7277 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 34356 Unique aggregates announced from the APNIC address blocks: 7099 APNIC Region origin ASes present in the Internet Routing Table: 1163 APNIC Prefixes per ASN: 29.54 APNIC Region origin ASes announcing only one prefix: 454 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: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 531 Number of APNIC addresses announced to Internet: 162517868 Equivalent to 9 /8s, 175 /16s and 211 /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: 126531 Total ARIN prefixes after maximum aggregation: 66101 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124049 Unique aggregates announced from the ARIN address blocks: 67539 ARIN Region origin ASes present in the Internet Routing Table: 9205 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3839 ARIN Region transit ASes present in the Internet Routing Table: 856 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: 2166 Number of ARIN addresses announced to Internet: 1022833929 Equivalent to 60 /8s, 247 /16s and 53 /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: 48414 Total RIPE prefixes after maximum aggregation: 25894 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 50693 Unique aggregates announced from the RIPE address blocks: 36974 RIPE Region origin ASes present in the Internet Routing Table: 4459 RIPE Prefixes per ASN: 11.37 RIPE Region origin ASes announcing only one prefix: 1871 RIPE Region transit ASes present in the Internet Routing Table: 673 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1840 Number of RIPE addresses announced to Internet: 283857232 Equivalent to 16 /8s, 235 /16s and 81 /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: 56520 Total LACNIC prefixes after maximum aggregation: 16476 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54632 Unique aggregates announced from the LACNIC address blocks: 24740 LACNIC Region origin ASes present in the Internet Routing Table: 4440 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1559 LACNIC Region transit ASes present in the Internet Routing Table: 882 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: 3406 Number of LACNIC addresses announced to Internet: 108444224 Equivalent to 6 /8s, 118 /16s and 186 /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: 10642 Total AfriNIC prefixes after maximum aggregation: 2381 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 14151 Unique aggregates announced from the AfriNIC address blocks: 4860 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 47.17 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: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 160 Number of AfriNIC addresses announced to Internet: 46631168 Equivalent to 2 /8s, 199 /16s and 137 /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 12800 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2930 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 24445 558 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 551 898 140 ALIBABA-CN-NET Alibaba US Technology Co., 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 14348 40863 5382 AMAZON-02, US 22773 3954 3048 315 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2991 233 1751 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2359 2620 1108 DNIC-ASBLK-00306-00371, US 6167 1931 3987 518 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 1936 130 50 ALJAWWALSTC-AS, SA 20940 1219 95 991 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 807 1301 130 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 645 109 505 TELLCOM-AS, TR 8376 591 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 CONTABO, DE 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 7282 1964 784 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1176 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 803 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 22884 694 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1320 572 23 RAYA-AS, EG 24863 997 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 639 521 41 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 567 82 3 KENET-AS, KE 29571 522 98 71 ORANGE-COTE-IVOIRE, CI 36992 479 1086 221 ETISALAT-MISR, EG 36903 454 203 332 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 14348 40863 5382 AMAZON-02, US 9808 12800 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7282 1964 784 UNINET, MX 22773 3954 3048 315 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2991 233 1751 USDA-1, US 56046 2930 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2359 2620 1108 DNIC-ASBLK-00306-00371, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 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 12800 12686 CHINAMOBILE-CN China Mobile Communications Grou 8151 7282 6498 UNINET, MX 22773 3954 3639 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2930 2740 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1690 1640 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1931 1413 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 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 /11:51 /12:159 /13:214 /14:591 /15:1112 /16:7608 /17:3468 /18:4128 /19:7622 /20:13078 /21:15770 /22:28297 /23:29147 /24:166425 /25:67 /26:83 /27:52 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3936 7282 UNINET, MX 22773 2503 3954 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2431 14348 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1038 1393 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:463 3:931 4:5 5:762 6:145 7:5 8:642 9:3 11:171 12:893 13:503 14:126 15:339 16:264 17:3 18:897 20:192 21:4 22:188 23:2556 24:687 27:32 29:19 31:484 32:12 34:10 35:180 36:3088 37:843 38:2421 39:648 40:93 41:1009 42:21 43:203 44:29 45:4388 46:983 47:118 49:21 50:472 51:383 52:1439 54:360 55:1106 56:11 57:23 58:17 59:33 60:31 61:54 62:558 63:768 64:1969 65:1099 66:1583 67:1071 68:361 69:1205 70:447 71:184 72:695 74:953 75:324 76:248 77:429 78:319 79:230 80:300 81:369 82:724 83:277 84:309 85:573 86:248 87:228 88:304 89:688 90:112 91:940 92:693 93:442 94:950 95:650 96:256 97:53 98:486 99:241 100:28 101:24 102:397 103:1068 104:1676 105:187 106:40 107:1545 108:525 109:378 110:53 111:2267 112:893 113:30 114:49 115:16 116:53 117:1238 118:68 119:69 120:1513 121:33 122:60 123:132 124:74 125:24 126:1 128:545 129:398 130:640 131:1086 132:568 133:221 134:488 135:122 136:685 137:496 138:1012 139:439 140:688 141:361 142:983 143:853 144:399 145:163 146:667 147:505 148:1020 149:650 150:201 151:777 152:502 153:181 154:1126 155:946 156:1263 157:437 158:586 159:726 160:626 161:680 162:1011 163:444 164:755 165:632 166:810 167:699 168:1528 169:160 170:1877 171:101 172:1302 173:814 174:361 175:91 176:461 177:912 178:621 179:902 180:40 181:2326 182:29 183:1180 184:451 185:3257 186:3111 187:1796 188:816 189:1909 190:6316 191:553 192:5144 193:1801 194:1144 195:928 196:767 197:1141 198:2714 199:5172 200:4437 201:3631 202:983 203:703 204:2189 205:1812 206:1592 207:1588 208:1560 209:1961 210:345 211:483 212:901 213:733 214:955 215:39 216:2496 217:463 218:599 219:18 220:32 221:454 222:24 223:1250 End of report