IPv4 R&E Routing Table Report 20:15 GMT Sat 04 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: 279421 Prefixes after maximum aggregation (per Origin AS): 118485 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141772 Number of IPv4 prefixes with a valid ROA: 131404 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 147806 Total ASes present in the Internet Routing Table: 20123 Prefixes per ASN: 13.89 Origin-only ASes present in the Internet Routing Table: 17374 Origin ASes announcing only one prefix: 7741 Transit ASes present in the Internet Routing Table: 2749 Transit-only ASes present in the Internet Routing Table: 664 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: 305 Number of instances of unregistered ASNs: 334 Number of 32-bit ASNs allocated by the RIRs: 47638 Number of 32-bit ASNs visible in the Routing Table: 7981 Prefixes from 32-bit ASNs in the Routing Table: 32747 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: 91 Number of addresses announced to Internet: 1612414629 Equivalent to 96 /8s, 27 /16s and 126 /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: 87883 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38744 Total APNIC prefixes after maximum aggregation: 7970 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 37671 Unique aggregates announced from the APNIC address blocks: 8311 APNIC Region origin ASes present in the Internet Routing Table: 1162 APNIC Prefixes per ASN: 32.42 APNIC Region origin ASes announcing only one prefix: 447 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: 526 Number of APNIC addresses announced to Internet: 163934060 Equivalent to 9 /8s, 197 /16s and 111 /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: 126772 Total ARIN prefixes after maximum aggregation: 66166 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124148 Unique aggregates announced from the ARIN address blocks: 67562 ARIN Region origin ASes present in the Internet Routing Table: 9211 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3840 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: 1020540905 Equivalent to 60 /8s, 212 /16s and 55 /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: 46471 Total RIPE prefixes after maximum aggregation: 24993 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 48956 Unique aggregates announced from the RIPE address blocks: 35809 RIPE Region origin ASes present in the Internet Routing Table: 4275 RIPE Prefixes per ASN: 11.45 RIPE Region origin ASes announcing only one prefix: 1796 RIPE Region transit ASes present in the Internet Routing Table: 663 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: 1762 Number of RIPE addresses announced to Internet: 274635088 Equivalent to 16 /8s, 94 /16s and 153 /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: 56725 Total LACNIC prefixes after maximum aggregation: 16457 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54785 Unique aggregates announced from the LACNIC address blocks: 24198 LACNIC Region origin ASes present in the Internet Routing Table: 4386 LACNIC Prefixes per ASN: 12.49 LACNIC Region origin ASes announcing only one prefix: 1554 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: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3354 Number of LACNIC addresses announced to Internet: 108504320 Equivalent to 6 /8s, 119 /16s and 165 /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: 10404 Total AfriNIC prefixes after maximum aggregation: 2645 AfriNIC Deaggregation factor: 3.93 Prefixes being announced from the AfriNIC address blocks: 13770 Unique aggregates announced from the AfriNIC address blocks: 5802 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 47.32 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 157 Number of AfriNIC addresses announced to Internet: 44692224 Equivalent to 2 /8s, 169 /16s and 243 /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 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1733 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 933 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 660 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 620 272 205 SEEDNET Digital United Inc., TW 2907 611 2169 463 SINET-AS Research Organization of Informa 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 14322 40995 5403 AMAZON-02, US 22773 3971 3049 335 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3084 239 1715 USDA-1, US 36352 2557 209 1172 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1885 259 215 ATLANTICBB-JOHNSTOWN, US 367 1877 2137 882 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1434 678 716 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 39891 1934 129 48 ALJAWWALSTC-AS, SA 20940 1253 99 1018 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 861 1304 131 SAUDINETSTC-AS, SA 8452 795 1841 16 TE-AS TE-AS, EG 212238 711 52 630 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 531 129 447 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 7297 1962 785 UNINET, MX 11830 1989 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 1231 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1009 2486 56 TIM SA, BR 18881 891 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 1178 396 101 RAYA-AS, EG 24863 1017 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 611 1112 309 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 36903 487 220 344 MT-MPLS, MA 29571 479 98 68 ORANGE-COTE-IVOIRE, CI 2018 376 318 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 14322 40995 5403 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7297 1962 785 UNINET, MX 22773 3971 3049 335 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3084 239 1715 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2557 209 1172 AS-COLOCROSSING, US 11830 1989 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 13474 13356 CHINAMOBILE-CN China Mobile Communications Grou 8151 7297 6512 UNINET, MX 22773 3971 3636 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1934 1886 ALJAWWALSTC-AS, SA 11776 1885 1670 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1733 1655 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1947 1434 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 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 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 /11:50 /12:159 /13:213 /14:583 /15:1098 /16:7574 /17:3415 /18:4138 /19:7661 /20:12876 /21:15840 /22:28319 /23:29087 /24:168114 /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 3962 7297 UNINET, MX 22773 2524 3971 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2397 14322 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1054 1434 BRIGHTSPEED, US 36352 1037 2557 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11664 910 1231 Techtel LMDS Comunicaciones Interactivas S.A., AR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:486 3:943 4:5 5:742 6:156 7:5 8:625 9:5 11:171 12:888 13:506 14:170 15:344 16:269 17:3 18:899 20:195 21:4 22:188 23:2557 24:684 27:54 29:19 31:500 32:13 34:10 35:180 36:3176 37:819 38:2491 39:730 40:93 41:1054 42:145 43:197 44:28 45:4256 46:975 47:116 49:21 50:481 51:389 52:1422 54:352 55:1108 56:11 57:30 58:17 59:30 60:147 61:100 62:528 63:757 64:1938 65:1035 66:1634 67:1083 68:385 69:1148 70:446 71:178 72:749 74:981 75:304 76:244 77:414 78:298 79:230 80:312 81:360 82:742 83:200 84:335 85:499 86:245 87:183 88:299 89:669 90:105 91:886 92:665 93:416 94:912 95:688 96:264 97:50 98:494 99:228 100:30 101:20 102:418 103:1062 104:1630 105:169 106:81 107:1549 108:520 109:351 110:107 111:2442 112:1050 113:32 114:39 115:63 116:58 117:1417 118:67 119:71 120:1608 121:30 122:94 123:187 124:178 125:26 128:555 129:402 130:622 131:1047 132:574 133:221 134:485 135:121 136:675 137:504 138:1004 139:454 140:742 141:360 142:1100 143:877 144:404 145:160 146:651 147:496 148:972 149:656 150:203 151:788 152:664 153:177 154:1163 155:885 156:1248 157:435 158:586 159:758 160:601 161:697 162:1007 163:445 164:746 165:615 166:812 167:684 168:1511 169:154 170:1848 171:100 172:1299 173:810 174:370 175:137 176:437 177:881 178:683 179:886 180:37 181:2380 182:28 183:1448 184:449 185:3147 186:3204 187:1683 188:799 189:1869 190:6356 191:544 192:5078 193:1719 194:1032 195:922 196:750 197:1142 198:2707 199:5222 200:4436 201:3666 202:999 203:801 204:2145 205:1823 206:1529 207:1595 208:1547 209:1942 210:513 211:509 212:971 213:711 214:952 215:38 216:2402 217:463 218:708 219:18 220:128 221:473 222:26 223:1452 End of report