IPv4 R&E Routing Table Report 20:15 GMT Wed 22 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: 278427 Prefixes after maximum aggregation (per Origin AS): 117928 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142780 Number of IPv4 prefixes with a valid ROA: 129565 Number of IPv4 prefixes with an invalid ROA: 198 Number of IPv4 prefixes with no ROA: 148664 Total ASes present in the Internet Routing Table: 20297 Prefixes per ASN: 13.72 Origin-only ASes present in the Internet Routing Table: 17492 Origin ASes announcing only one prefix: 7887 Transit ASes present in the Internet Routing Table: 2805 Transit-only ASes present in the Internet Routing Table: 715 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: 288 Number of instances of unregistered ASNs: 317 Number of 32-bit ASNs allocated by the RIRs: 47768 Number of 32-bit ASNs visible in the Routing Table: 8067 Prefixes from 32-bit ASNs in the Routing Table: 32907 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 97 Number of addresses announced to Internet: 1633373597 Equivalent to 97 /8s, 91 /16s and 77 /24s Percentage of available address space announced: 44.1 Percentage of allocated address space announced: 44.1 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: 86961 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38816 Total APNIC prefixes after maximum aggregation: 7918 APNIC Deaggregation factor: 4.90 Prefixes being announced from the APNIC address blocks: 37565 Unique aggregates announced from the APNIC address blocks: 8340 APNIC Region origin ASes present in the Internet Routing Table: 1146 APNIC Prefixes per ASN: 32.78 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 189 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: 537 Number of APNIC addresses announced to Internet: 174996068 Equivalent to 10 /8s, 110 /16s and 58 /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: 127448 Total ARIN prefixes after maximum aggregation: 65837 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125276 Unique aggregates announced from the ARIN address blocks: 69014 ARIN Region origin ASes present in the Internet Routing Table: 9206 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 3846 ARIN Region transit ASes present in the Internet Routing Table: 846 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2188 Number of ARIN addresses announced to Internet: 1020844009 Equivalent to 60 /8s, 216 /16s and 215 /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: 44936 Total RIPE prefixes after maximum aggregation: 25066 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47308 Unique aggregates announced from the RIPE address blocks: 35731 RIPE Region origin ASes present in the Internet Routing Table: 4438 RIPE Prefixes per ASN: 10.66 RIPE Region origin ASes announcing only one prefix: 1930 RIPE Region transit ASes present in the Internet Routing Table: 704 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: 1839 Number of RIPE addresses announced to Internet: 283874640 Equivalent to 16 /8s, 235 /16s and 149 /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: 56372 Total LACNIC prefixes after maximum aggregation: 16381 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54301 Unique aggregates announced from the LACNIC address blocks: 24025 LACNIC Region origin ASes present in the Internet Routing Table: 4366 LACNIC Prefixes per ASN: 12.44 LACNIC Region origin ASes announcing only one prefix: 1555 LACNIC Region transit ASes present in the Internet Routing Table: 858 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: 3331 Number of LACNIC addresses announced to Internet: 108149760 Equivalent to 6 /8s, 114 /16s and 60 /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: 10567 Total AfriNIC prefixes after maximum aggregation: 2493 AfriNIC Deaggregation factor: 4.24 Prefixes being announced from the AfriNIC address blocks: 13880 Unique aggregates announced from the AfriNIC address blocks: 5578 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 46.27 AfriNIC Region origin ASes announcing only one prefix: 112 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: 172 Number of AfriNIC addresses announced to Internet: 45403648 Equivalent to 2 /8s, 180 /16s and 206 /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 13648 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1741 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 941 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 586 77 427 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 14355 41086 5392 AMAZON-02, US 22773 4284 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3129 242 1748 USDA-1, US 36352 2578 210 1160 AS-COLOCROSSING, US 6167 1954 4050 513 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1865 2121 872 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1449 702 722 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 20940 1227 96 1005 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 866 1841 15 TE-AS TE-AS, EG 212238 680 47 599 CDNEXT, GB 34984 575 88 456 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 560 53 25 Jordan Data Communications, JO 35819 542 538 91 MOBILY-AS Etihad Etisalat Company Mobily, 5511 527 129 444 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 7279 1964 780 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1672 240 1208 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1259 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1008 2486 56 TIM SA, BR 18881 899 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 52468 649 40 194 UFINET PANAMA S.A., PA 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 1317 452 97 RAYA-AS, EG 24863 1022 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 578 82 3 KENET-AS, KE 36935 491 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 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 14355 41086 5392 AMAZON-02, US 9808 13648 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7279 1964 780 UNINET, MX 22773 4284 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3129 242 1748 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2578 210 1160 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1954 4050 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 13648 13529 CHINAMOBILE-CN China Mobile Communications Grou 8151 7279 6499 UNINET, MX 22773 4284 3917 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1663 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1954 1441 CELLCO-PART, US 36352 2578 1418 AS-COLOCROSSING, 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 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 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS 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 23.148.12.0/24 Origin: 400899 CYCLONESERVERS-LLC, US 23.148.12.0/24 Transit: 400402 HOSTING-BOT, US 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US 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 /10:32 /11:51 /12:161 /13:214 /14:587 /15:1096 /16:7678 /17:3410 /18:4136 /19:7636 /20:12576 /21:15829 /22:28352 /23:28694 /24:167712 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3948 7279 UNINET, MX 22773 2648 4284 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2424 14355 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1449 BRIGHTSPEED, US 36352 1039 2578 AS-COLOCROSSING, US 10620 983 1672 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 936 1259 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:278 3:941 4:5 5:608 6:157 7:5 8:611 9:5 11:171 12:883 13:491 14:172 15:344 16:273 17:3 18:899 20:198 21:4 22:188 23:2681 24:583 27:56 29:19 31:447 32:13 34:11 35:187 36:3194 37:542 38:2597 39:748 40:94 41:1035 42:145 43:201 44:26 45:4219 46:913 47:147 49:21 50:474 51:391 52:1455 54:350 55:1108 56:11 57:28 58:17 59:33 60:91 61:61 62:530 63:735 64:1957 65:1022 66:1973 67:1034 68:497 69:1207 70:442 71:171 72:732 74:994 75:309 76:238 77:364 78:301 79:262 80:315 81:390 82:756 83:200 84:336 85:593 86:244 87:180 88:282 89:680 90:105 91:894 92:658 93:415 94:844 95:417 96:263 97:50 98:406 99:241 100:22 101:20 102:471 103:1053 104:1586 105:174 106:61 107:1712 108:526 109:342 110:92 111:2505 112:1099 113:32 114:39 115:64 116:56 117:1447 118:84 119:71 120:1649 121:32 122:62 123:177 124:84 125:24 128:552 129:400 130:674 131:1013 132:578 133:220 134:497 135:124 136:674 137:499 138:993 139:430 140:736 141:365 142:1178 143:890 144:417 145:143 146:656 147:478 148:998 149:723 150:214 151:790 152:699 153:178 154:1190 155:989 156:1169 157:445 158:601 159:743 160:615 161:706 162:999 163:434 164:758 165:641 166:799 167:680 168:1496 169:154 170:1842 171:100 172:1324 173:790 174:286 175:106 176:410 177:888 178:634 179:883 180:35 181:2419 182:29 183:1489 184:456 185:3048 186:3239 187:1687 188:762 189:1872 190:6266 191:539 192:5075 193:1702 194:1075 195:920 196:711 197:1109 198:2702 199:5233 200:4376 201:3670 202:1006 203:774 204:2159 205:1816 206:1513 207:1738 208:1594 209:1926 210:344 211:509 212:970 213:699 214:952 215:40 216:2513 217:476 218:658 219:18 220:87 221:495 222:24 223:1504 End of report