IPv4 R&E Routing Table Report 20:15 GMT Sat 20 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: 277368 Prefixes after maximum aggregation (per Origin AS): 118408 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141328 Number of IPv4 prefixes with a valid ROA: 129273 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147885 Total ASes present in the Internet Routing Table: 20354 Prefixes per ASN: 13.63 Origin-only ASes present in the Internet Routing Table: 17556 Origin ASes announcing only one prefix: 7799 Transit ASes present in the Internet Routing Table: 2798 Transit-only ASes present in the Internet Routing Table: 680 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: 342 Number of instances of unregistered ASNs: 371 Number of 32-bit ASNs allocated by the RIRs: 47507 Number of 32-bit ASNs visible in the Routing Table: 8124 Prefixes from 32-bit ASNs in the Routing Table: 33743 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: 1615559653 Equivalent to 96 /8s, 75 /16s and 123 /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: 87248 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 37204 Total APNIC prefixes after maximum aggregation: 7689 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 36147 Unique aggregates announced from the APNIC address blocks: 7751 APNIC Region origin ASes present in the Internet Routing Table: 1158 APNIC Prefixes per ASN: 31.22 APNIC Region origin ASes announcing only one prefix: 451 APNIC Region transit ASes present in the Internet Routing Table: 190 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: 529 Number of APNIC addresses announced to Internet: 162076524 Equivalent to 9 /8s, 169 /16s and 23 /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: 126386 Total ARIN prefixes after maximum aggregation: 65976 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123768 Unique aggregates announced from the ARIN address blocks: 67402 ARIN Region origin ASes present in the Internet Routing Table: 9165 ARIN Prefixes per ASN: 13.50 ARIN Region origin ASes announcing only one prefix: 3799 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2157 Number of ARIN addresses announced to Internet: 1022110185 Equivalent to 60 /8s, 236 /16s and 41 /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: 45967 Total RIPE prefixes after maximum aggregation: 25520 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48453 Unique aggregates announced from the RIPE address blocks: 36534 RIPE Region origin ASes present in the Internet Routing Table: 4441 RIPE Prefixes per ASN: 10.91 RIPE Region origin ASes announcing only one prefix: 1865 RIPE Region transit ASes present in the Internet Routing Table: 672 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1842 Number of RIPE addresses announced to Internet: 276388432 Equivalent to 16 /8s, 121 /16s and 90 /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: 56862 Total LACNIC prefixes after maximum aggregation: 16504 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54938 Unique aggregates announced from the LACNIC address blocks: 24577 LACNIC Region origin ASes present in the Internet Routing Table: 4479 LACNIC Prefixes per ASN: 12.27 LACNIC Region origin ASes announcing only one prefix: 1572 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: 3438 Number of LACNIC addresses announced to Internet: 108654656 Equivalent to 6 /8s, 121 /16s and 240 /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: 10607 Total AfriNIC prefixes after maximum aggregation: 2463 AfriNIC Deaggregation factor: 4.31 Prefixes being announced from the AfriNIC address blocks: 13970 Unique aggregates announced from the AfriNIC address blocks: 4974 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 47.36 AfriNIC Region origin ASes announcing only one prefix: 112 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: 158 Number of AfriNIC addresses announced to Internet: 46221824 Equivalent to 2 /8s, 193 /16s and 74 /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 14424 40907 5398 AMAZON-02, US 22773 3940 3044 312 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3029 235 1723 USDA-1, US 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2404 987 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 1209 95 985 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 794 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 604 103 470 TELLCOM-AS, TR 8376 567 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 523 128 439 OPENTRANSIT, FR 25019 519 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 7411 1977 795 UNINET, MX 11830 1989 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 1185 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 816 278 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 993 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 648 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 478 98 69 ORANGE-COTE-IVOIRE, CI 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 14424 40907 5398 AMAZON-02, US 9808 13306 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7411 1977 795 UNINET, MX 22773 3940 3044 312 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3029 235 1723 USDA-1, US 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2404 987 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 13306 13188 CHINAMOBILE-CN China Mobile Communications Grou 8151 7411 6616 UNINET, MX 22773 3940 3628 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3014 2821 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 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 /16:7570 /17:3408 /18:4097 /19:7516 /20:12681 /21:15907 /22:28230 /23:29094 /24:166458 /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 3960 7411 UNINET, MX 22773 2506 3940 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2449 14424 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1038 1400 BRIGHTSPEED, US 36352 995 2512 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 2:277 3:938 4:5 5:601 6:152 7:5 8:632 9:5 11:171 12:887 13:510 14:170 15:343 16:265 17:3 18:896 20:194 21:4 22:188 23:2521 24:681 27:55 29:19 31:457 32:12 34:11 35:180 36:3132 37:761 38:2438 39:714 40:93 41:1043 42:21 43:204 44:27 45:4298 46:961 47:117 49:20 50:473 51:380 52:1440 54:366 55:1091 56:11 57:28 58:17 59:37 60:90 61:60 62:540 63:767 64:1805 65:1075 66:1527 67:1066 68:367 69:1199 70:447 71:180 72:691 74:965 75:306 76:245 77:423 78:315 79:235 80:329 81:364 82:746 83:201 84:334 85:560 86:246 87:198 88:306 89:702 90:106 91:922 92:680 93:418 94:958 95:403 96:260 97:50 98:481 99:254 100:28 101:20 102:378 103:1080 104:1649 105:213 106:40 107:1545 108:528 109:383 110:102 111:2388 112:998 113:29 114:46 115:63 116:57 117:1357 118:70 119:71 120:1574 121:34 122:61 123:161 124:85 125:25 126:1 128:553 129:399 130:627 131:1055 132:569 133:221 134:479 135:121 136:681 137:500 138:1004 139:448 140:735 141:360 142:982 143:884 144:405 145:163 146:666 147:503 148:1003 149:641 150:204 151:853 152:529 153:180 154:1126 155:963 156:1230 157:436 158:599 159:717 160:599 161:685 162:1012 163:443 164:759 165:611 166:812 167:693 168:1506 169:158 170:1859 171:103 172:1296 173:808 174:363 175:94 176:435 177:930 178:629 179:897 180:38 181:2358 182:29 183:1384 184:452 185:3235 186:3127 187:1720 188:750 189:1871 190:6339 191:603 192:5133 193:1803 194:1130 195:921 196:759 197:1146 198:2711 199:5192 200:4479 201:3628 202:995 203:776 204:2168 205:1795 206:1582 207:1577 208:1561 209:1952 210:361 211:496 212:890 213:700 214:948 215:40 216:2486 217:469 218:643 219:18 220:85 221:471 222:24 223:1397 End of report