IPv4 R&E Routing Table Report 20:15 GMT Fri 19 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: 277931 Prefixes after maximum aggregation (per Origin AS): 118529 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141329 Number of IPv4 prefixes with a valid ROA: 129404 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148317 Total ASes present in the Internet Routing Table: 20377 Prefixes per ASN: 13.64 Origin-only ASes present in the Internet Routing Table: 17581 Origin ASes announcing only one prefix: 7809 Transit ASes present in the Internet Routing Table: 2796 Transit-only ASes present in the Internet Routing Table: 671 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: 343 Number of instances of unregistered ASNs: 372 Number of 32-bit ASNs allocated by the RIRs: 47485 Number of 32-bit ASNs visible in the Routing Table: 8122 Prefixes from 32-bit ASNs in the Routing Table: 33674 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: 92 Number of addresses announced to Internet: 1616437733 Equivalent to 96 /8s, 88 /16s and 225 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87482 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 37190 Total APNIC prefixes after maximum aggregation: 7685 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 36115 Unique aggregates announced from the APNIC address blocks: 7725 APNIC Region origin ASes present in the Internet Routing Table: 1157 APNIC Prefixes per ASN: 31.21 APNIC Region origin ASes announcing only one prefix: 450 APNIC Region transit ASes present in the Internet Routing Table: 193 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 524 Number of APNIC addresses announced to Internet: 162255724 Equivalent to 9 /8s, 171 /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: 126479 Total ARIN prefixes after maximum aggregation: 66091 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123883 Unique aggregates announced from the ARIN address blocks: 67459 ARIN Region origin ASes present in the Internet Routing Table: 9181 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3814 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: 2160 Number of ARIN addresses announced to Internet: 1022136297 Equivalent to 60 /8s, 236 /16s and 143 /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: 46066 Total RIPE prefixes after maximum aggregation: 25566 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48541 Unique aggregates announced from the RIPE address blocks: 36572 RIPE Region origin ASes present in the Internet Routing Table: 4444 RIPE Prefixes per ASN: 10.92 RIPE Region origin ASes announcing only one prefix: 1858 RIPE Region transit ASes present in the Internet Routing Table: 676 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: 1832 Number of RIPE addresses announced to Internet: 276425296 Equivalent to 16 /8s, 121 /16s and 234 /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: 57271 Total LACNIC prefixes after maximum aggregation: 16489 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 55352 Unique aggregates announced from the LACNIC address blocks: 24522 LACNIC Region origin ASes present in the Internet Routing Table: 4497 LACNIC Prefixes per ASN: 12.31 LACNIC Region origin ASes announcing only one prefix: 1579 LACNIC Region transit ASes present in the Internet Routing Table: 888 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: 3449 Number of LACNIC addresses announced to Internet: 109275968 Equivalent to 6 /8s, 131 /16s and 107 /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: 10582 Total AfriNIC prefixes after maximum aggregation: 2441 AfriNIC Deaggregation factor: 4.34 Prefixes being announced from the AfriNIC address blocks: 13948 Unique aggregates announced from the AfriNIC address blocks: 4961 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 48.10 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: 6.7 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: 46236416 Equivalent to 2 /8s, 193 /16s and 131 /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 13306 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 622 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 588 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 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 14398 40907 5401 AMAZON-02, US 22773 3941 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3034 235 1730 USDA-1, US 36352 2511 206 1171 AS-COLOCROSSING, US 367 2190 2435 1040 DNIC-ASBLK-00306-00371, US 6167 1934 4002 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 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 20940 1207 95 984 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 793 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 603 102 469 TELLCOM-AS, TR 8376 569 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 524 129 440 OPENTRANSIT, FR 25019 520 1296 129 SAUDINETSTC-AS, SA 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 7910 2147 780 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 814 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 27651 651 92 45 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 1225 572 23 RAYA-AS, EG 24863 1017 389 23 LINKdotNET-AS, EG 37069 945 1096 13 MOBINIL, EG 36935 648 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36992 563 1069 299 ETISALAT-MISR, EG 36914 561 82 3 KENET-AS, KE 36903 487 220 344 MT-MPLS, MA 29571 478 98 69 ORANGE-COTE-IVOIRE, CI 2018 376 318 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 14398 40907 5401 AMAZON-02, US 9808 13306 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7910 2147 780 UNINET, MX 22773 3941 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3034 235 1730 USDA-1, US 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2511 206 1171 AS-COLOCROSSING, US 367 2190 2435 1040 DNIC-ASBLK-00306-00371, US 11830 1988 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 13306 13188 CHINAMOBILE-CN China Mobile Communications Grou 8151 7910 7130 UNINET, MX 22773 3941 3628 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3014 2821 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1709 1659 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1418 CELLCO-PART, US 209 1648 1380 CENTURYLINK-US-LEGACY-QWEST, 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 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 26295 UNALLOCATED 12.110.210.0/23 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 /12:156 /13:214 /14:585 /15:1105 /16:7572 /17:3408 /18:4104 /19:7595 /20:12713 /21:16075 /22:28278 /23:29216 /24:166563 /25:66 /26:82 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4129 7910 UNINET, MX 22773 2506 3941 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2448 14398 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1037 1399 BRIGHTSPEED, US 36352 994 2511 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 849 1934 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:280 3:933 4:5 5:603 6:152 7:5 8:634 9:5 11:171 12:888 13:507 14:170 15:343 16:265 17:3 18:895 20:194 21:4 22:188 23:2517 24:683 27:55 29:19 31:472 32:12 34:10 35:180 36:3131 37:766 38:2439 39:714 40:93 41:1015 42:21 43:199 44:27 45:4281 46:967 47:117 49:20 50:472 51:384 52:1438 54:366 55:1094 56:11 57:28 58:18 59:36 60:90 61:59 62:537 63:773 64:1815 65:1075 66:1547 67:1074 68:368 69:1204 70:447 71:180 72:694 74:966 75:305 76:248 77:422 78:315 79:235 80:329 81:367 82:753 83:201 84:335 85:556 86:248 87:206 88:305 89:703 90:106 91:923 92:681 93:420 94:955 95:400 96:260 97:50 98:489 99:253 100:28 101:20 102:379 103:1064 104:1650 105:213 106:40 107:1546 108:527 109:386 110:102 111:2389 112:998 113:29 114:46 115:63 116:52 117:1357 118:69 119:76 120:1574 121:34 122:61 123:160 124:85 125:24 126:1 128:553 129:400 130:628 131:1060 132:584 133:221 134:481 135:121 136:682 137:500 138:1000 139:448 140:735 141:361 142:983 143:884 144:404 145:163 146:663 147:504 148:995 149:650 150:202 151:851 152:525 153:180 154:1131 155:963 156:1241 157:435 158:592 159:721 160:599 161:686 162:1012 163:442 164:760 165:613 166:811 167:701 168:1509 169:158 170:1854 171:103 172:1296 173:817 174:363 175:94 176:437 177:934 178:634 179:898 180:38 181:2362 182:29 183:1381 184:452 185:3230 186:3127 187:1763 188:758 189:1880 190:6336 191:588 192:5137 193:1804 194:1136 195:925 196:760 197:1146 198:2713 199:5198 200:4466 201:3590 202:999 203:776 204:2168 205:1791 206:1588 207:1574 208:1558 209:1953 210:361 211:496 212:889 213:698 214:953 215:40 216:2487 217:470 218:643 219:18 220:85 221:471 222:24 223:1396 End of report