IPv4 R&E Routing Table Report 20:15 GMT Fri 03 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: 278272 Prefixes after maximum aggregation (per Origin AS): 118465 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141961 Number of IPv4 prefixes with a valid ROA: 130191 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147871 Total ASes present in the Internet Routing Table: 20206 Prefixes per ASN: 13.77 Origin-only ASes present in the Internet Routing Table: 17446 Origin ASes announcing only one prefix: 7754 Transit ASes present in the Internet Routing Table: 2760 Transit-only ASes present in the Internet Routing Table: 661 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: 307 Number of instances of unregistered ASNs: 336 Number of 32-bit ASNs allocated by the RIRs: 47628 Number of 32-bit ASNs visible in the Routing Table: 8042 Prefixes from 32-bit ASNs in the Routing Table: 33095 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: 1611999397 Equivalent to 96 /8s, 21 /16s and 40 /24s Percentage of available address space announced: 43.5 Percentage of allocated address space announced: 43.5 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: 87262 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38720 Total APNIC prefixes after maximum aggregation: 7944 APNIC Deaggregation factor: 4.87 Prefixes being announced from the APNIC address blocks: 37669 Unique aggregates announced from the APNIC address blocks: 8301 APNIC Region origin ASes present in the Internet Routing Table: 1161 APNIC Prefixes per ASN: 32.45 APNIC Region origin ASes announcing only one prefix: 447 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: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 529 Number of APNIC addresses announced to Internet: 163928940 Equivalent to 9 /8s, 197 /16s and 91 /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: 126689 Total ARIN prefixes after maximum aggregation: 66094 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124056 Unique aggregates announced from the ARIN address blocks: 67486 ARIN Region origin ASes present in the Internet Routing Table: 9210 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3832 ARIN Region transit ASes present in the Internet Routing Table: 847 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: 2176 Number of ARIN addresses announced to Internet: 1020002025 Equivalent to 60 /8s, 203 /16s and 254 /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: 45073 Total RIPE prefixes after maximum aggregation: 24943 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 47583 Unique aggregates announced from the RIPE address blocks: 35824 RIPE Region origin ASes present in the Internet Routing Table: 4287 RIPE Prefixes per ASN: 11.10 RIPE Region origin ASes announcing only one prefix: 1805 RIPE Region transit ASes present in the Internet Routing Table: 666 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: 1774 Number of RIPE addresses announced to Internet: 274634064 Equivalent to 16 /8s, 94 /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: 57101 Total LACNIC prefixes after maximum aggregation: 16582 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 55153 Unique aggregates announced from the LACNIC address blocks: 24493 LACNIC Region origin ASes present in the Internet Routing Table: 4464 LACNIC Prefixes per ASN: 12.36 LACNIC Region origin ASes announcing only one prefix: 1564 LACNIC Region transit ASes present in the Internet Routing Table: 853 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: 3405 Number of LACNIC addresses announced to Internet: 108567040 Equivalent to 6 /8s, 120 /16s and 154 /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: 10382 Total AfriNIC prefixes after maximum aggregation: 2647 AfriNIC Deaggregation factor: 3.92 Prefixes being announced from the AfriNIC address blocks: 13720 Unique aggregates announced from the AfriNIC address blocks: 5767 AfriNIC Region origin ASes present in the Internet Routing Table: 288 AfriNIC Prefixes per ASN: 47.64 AfriNIC Region origin ASes announcing only one prefix: 106 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: 158 Number of AfriNIC addresses announced to Internet: 44759296 Equivalent to 2 /8s, 170 /16s and 249 /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 624 272 205 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 14270 40893 5370 AMAZON-02, US 22773 3968 3046 332 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3085 239 1714 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 1878 2137 883 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 20940 1244 98 1011 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 792 1841 16 TE-AS TE-AS, EG 212238 721 54 640 CDNEXT, GB 34984 621 108 480 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 5511 531 129 447 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 7275 1948 790 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1668 239 1206 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1234 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1001 2486 56 TIM SA, BR 18881 893 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 1015 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 624 1124 311 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 564 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 14270 40893 5370 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7275 1948 790 UNINET, MX 22773 3968 3046 332 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3085 239 1714 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 7275 6485 UNINET, MX 22773 3968 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 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 36352 2557 1385 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 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 /15:1097 /16:7570 /17:3413 /18:4139 /19:7609 /20:12506 /21:15835 /22:28196 /23:29067 /24:167541 /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 4015 7275 UNINET, MX 22773 2524 3968 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2388 14270 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1054 1434 BRIGHTSPEED, US 36352 1037 2557 AS-COLOCROSSING, US 10620 979 1668 Telmex Colombia S.A., CO 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11664 913 1234 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 865 1885 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 2:293 3:940 4:5 5:584 6:156 7:5 8:626 9:5 11:171 12:887 13:508 14:171 15:344 16:269 17:3 18:897 20:195 21:4 22:188 23:2551 24:684 27:54 29:19 31:474 32:13 34:11 35:180 36:3177 37:799 38:2487 39:730 40:93 41:1054 42:145 43:197 44:28 45:4288 46:991 47:116 49:21 50:480 51:389 52:1422 54:352 55:1109 56:11 57:30 58:17 59:30 60:147 61:100 62:533 63:758 64:1816 65:1038 66:1574 67:1085 68:383 69:1159 70:446 71:178 72:747 74:981 75:304 76:244 77:414 78:297 79:230 80:312 81:376 82:735 83:200 84:335 85:505 86:245 87:185 88:299 89:669 90:105 91:891 92:663 93:419 94:919 95:427 96:264 97:50 98:494 99:225 100:30 101:20 102:413 103:1062 104:1630 105:169 106:75 107:1549 108:521 109:351 110:105 111:2442 112:1050 113:32 114:39 115:63 116:58 117:1418 118:67 119:72 120:1608 121:29 122:94 123:187 124:178 125:26 128:556 129:402 130:613 131:1062 132:571 133:221 134:485 135:122 136:675 137:504 138:1011 139:452 140:742 141:361 142:1100 143:890 144:405 145:160 146:652 147:492 148:972 149:656 150:203 151:791 152:663 153:177 154:1162 155:885 156:1224 157:434 158:587 159:742 160:604 161:696 162:1009 163:443 164:747 165:614 166:811 167:684 168:1524 169:154 170:1875 171:100 172:1298 173:805 174:370 175:142 176:441 177:916 178:651 179:896 180:37 181:2389 182:28 183:1448 184:448 185:3154 186:3218 187:1710 188:759 189:1924 190:6364 191:557 192:5074 193:1721 194:1034 195:914 196:749 197:1127 198:2706 199:5232 200:4475 201:3693 202:994 203:795 204:2148 205:1810 206:1532 207:1629 208:1547 209:1950 210:513 211:509 212:961 213:712 214:954 215:40 216:2395 217:463 218:708 219:18 220:129 221:473 222:26 223:1452 End of report