IPv4 R&E Routing Table Report 20:15 GMT Sun 14 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: 277742 Prefixes after maximum aggregation (per Origin AS): 118182 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 140954 Number of IPv4 prefixes with a valid ROA: 130359 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 147340 Total ASes present in the Internet Routing Table: 20323 Prefixes per ASN: 13.67 Origin-only ASes present in the Internet Routing Table: 17541 Origin ASes announcing only one prefix: 7800 Transit ASes present in the Internet Routing Table: 2782 Transit-only ASes present in the Internet Routing Table: 679 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: 352 Number of instances of unregistered ASNs: 381 Number of 32-bit ASNs allocated by the RIRs: 47419 Number of 32-bit ASNs visible in the Routing Table: 8076 Prefixes from 32-bit ASNs in the Routing Table: 33324 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: 94 Number of addresses announced to Internet: 1616099557 Equivalent to 96 /8s, 83 /16s and 184 /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: 88024 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36483 Total APNIC prefixes after maximum aggregation: 7660 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 35368 Unique aggregates announced from the APNIC address blocks: 7655 APNIC Region origin ASes present in the Internet Routing Table: 1150 APNIC Prefixes per ASN: 30.75 APNIC Region origin ASes announcing only one prefix: 445 APNIC Region transit ASes present in the Internet Routing Table: 190 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: 520 Number of APNIC addresses announced to Internet: 161973612 Equivalent to 9 /8s, 167 /16s and 133 /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: 126195 Total ARIN prefixes after maximum aggregation: 65896 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123649 Unique aggregates announced from the ARIN address blocks: 67338 ARIN Region origin ASes present in the Internet Routing Table: 9187 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3824 ARIN Region transit ASes present in the Internet Routing Table: 852 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: 2172 Number of ARIN addresses announced to Internet: 1022106601 Equivalent to 60 /8s, 236 /16s and 27 /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: 47572 Total RIPE prefixes after maximum aggregation: 25526 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49908 Unique aggregates announced from the RIPE address blocks: 36509 RIPE Region origin ASes present in the Internet Routing Table: 4436 RIPE Prefixes per ASN: 11.25 RIPE Region origin ASes announcing only one prefix: 1856 RIPE Region transit ASes present in the Internet Routing Table: 678 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: 1831 Number of RIPE addresses announced to Internet: 276822096 Equivalent to 16 /8s, 127 /16s and 248 /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: 56368 Total LACNIC prefixes after maximum aggregation: 16379 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54477 Unique aggregates announced from the LACNIC address blocks: 24439 LACNIC Region origin ASes present in the Internet Routing Table: 4433 LACNIC Prefixes per ASN: 12.29 LACNIC Region origin ASes announcing only one prefix: 1567 LACNIC Region transit ASes present in the Internet Routing Table: 869 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3394 Number of LACNIC addresses announced to Internet: 108465984 Equivalent to 6 /8s, 119 /16s and 15 /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: 10772 Total AfriNIC prefixes after maximum aggregation: 2461 AfriNIC Deaggregation factor: 4.38 Prefixes being announced from the AfriNIC address blocks: 14246 Unique aggregates announced from the AfriNIC address blocks: 4921 AfriNIC Region origin ASes present in the Internet Routing Table: 299 AfriNIC Prefixes per ASN: 47.65 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 71 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: 159 Number of AfriNIC addresses announced to Internet: 46613248 Equivalent to 2 /8s, 199 /16s and 67 /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 13075 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2950 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1711 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 868 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 2907 609 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 24445 562 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14342 40862 5372 AMAZON-02, US 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3000 233 1731 USDA-1, US 36352 2512 206 1169 AS-COLOCROSSING, US 367 2283 2596 1110 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1902 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 1241 98 1007 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 808 1301 130 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 622 107 483 TELLCOM-AS, TR 8376 593 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 7296 1964 784 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1681 240 1219 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1181 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 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 1319 572 23 RAYA-AS, EG 24863 1013 389 21 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 646 522 42 Vodafone-, EG 36992 584 1087 303 ETISALAT-MISR, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 29571 517 98 69 ORANGE-COTE-IVOIRE, CI 36903 454 203 332 MT-MPLS, MA 2018 374 318 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 14342 40862 5372 AMAZON-02, US 9808 13075 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7296 1964 784 UNINET, MX 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3000 233 1731 USDA-1, US 56046 2950 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1169 AS-COLOCROSSING, US 367 2283 2596 1110 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 13075 12961 CHINAMOBILE-CN China Mobile Communications Grou 8151 7296 6512 UNINET, MX 22773 3955 3641 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2950 2759 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1711 1633 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 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 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 23.135.216.0/24 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 23.174.40.0/24 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 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 /15:1108 /16:7576 /17:3412 /18:4085 /19:7564 /20:13053 /21:15781 /22:28190 /23:29116 /24:166554 /25:66 /26:83 /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 3947 7296 UNINET, MX 22773 2505 3955 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2436 14342 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1032 1388 BRIGHTSPEED, US 36352 997 2512 AS-COLOCROSSING, US 10620 991 1681 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 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 2:477 3:918 4:5 5:756 6:146 7:5 8:640 9:3 11:171 12:892 13:503 14:168 15:340 16:265 17:3 18:895 20:193 21:4 22:188 23:2548 24:682 27:55 29:19 31:471 32:12 34:10 35:180 36:3108 37:801 38:2404 39:669 40:93 41:1060 42:21 43:201 44:30 45:4314 46:977 47:118 49:20 50:470 51:383 52:1440 54:362 55:1111 56:11 57:26 58:19 59:36 60:90 61:59 62:536 63:768 64:1930 65:1090 66:1580 67:1063 68:361 69:1189 70:446 71:181 72:694 74:954 75:311 76:246 77:428 78:319 79:236 80:330 81:367 82:725 83:207 84:338 85:556 86:248 87:208 88:306 89:693 90:105 91:929 92:686 93:426 94:951 95:642 96:258 97:50 98:487 99:243 100:28 101:21 102:396 103:1054 104:1665 105:187 106:40 107:1546 108:528 109:377 110:101 111:2329 112:918 113:30 114:47 115:63 116:52 117:1297 118:70 119:70 120:1540 121:33 122:61 123:146 124:85 125:24 126:1 128:545 129:401 130:632 131:1058 132:569 133:218 134:481 135:120 136:681 137:496 138:992 139:438 140:694 141:362 142:983 143:865 144:398 145:163 146:665 147:503 148:995 149:658 150:203 151:768 152:501 153:181 154:1131 155:955 156:1258 157:438 158:598 159:722 160:636 161:688 162:1014 163:445 164:754 165:614 166:810 167:699 168:1515 169:160 170:1849 171:100 172:1302 173:814 174:361 175:91 176:448 177:913 178:619 179:886 180:39 181:2347 182:29 183:1330 184:463 185:3229 186:3118 187:1667 188:794 189:1862 190:6340 191:571 192:5135 193:1797 194:1128 195:950 196:759 197:1145 198:2706 199:5168 200:4461 201:3633 202:995 203:773 204:2174 205:1810 206:1587 207:1572 208:1551 209:1953 210:348 211:489 212:892 213:729 214:955 215:40 216:2476 217:469 218:602 219:18 220:85 221:456 222:24 223:1303 End of report