IPv4 R&E Routing Table Report 20:15 GMT Tue 02 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: 277429 Prefixes after maximum aggregation (per Origin AS): 118952 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 141357 Number of IPv4 prefixes with a valid ROA: 130220 Number of IPv4 prefixes with an invalid ROA: 48 Number of IPv4 prefixes with no ROA: 147161 Total ASes present in the Internet Routing Table: 20573 Prefixes per ASN: 13.49 Origin-only ASes present in the Internet Routing Table: 17716 Origin ASes announcing only one prefix: 7871 Transit ASes present in the Internet Routing Table: 2857 Transit-only ASes present in the Internet Routing Table: 687 Paths with bogon ASNs present in the IPv4 Routing Table: 11 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: 337 Number of instances of unregistered ASNs: 367 Number of 32-bit ASNs allocated by the RIRs: 47306 Number of 32-bit ASNs visible in the Routing Table: 8233 Prefixes from 32-bit ASNs in the Routing Table: 34006 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 91 Number of addresses announced to Internet: 1618015493 Equivalent to 96 /8s, 112 /16s and 245 /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: 87890 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35416 Total APNIC prefixes after maximum aggregation: 7308 APNIC Deaggregation factor: 4.85 Prefixes being announced from the APNIC address blocks: 34461 Unique aggregates announced from the APNIC address blocks: 7362 APNIC Region origin ASes present in the Internet Routing Table: 1181 APNIC Prefixes per ASN: 29.18 APNIC Region origin ASes announcing only one prefix: 462 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 548 Number of APNIC addresses announced to Internet: 162744940 Equivalent to 9 /8s, 179 /16s and 74 /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: 126448 Total ARIN prefixes after maximum aggregation: 66409 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124881 Unique aggregates announced from the ARIN address blocks: 68200 ARIN Region origin ASes present in the Internet Routing Table: 9207 ARIN Prefixes per ASN: 13.56 ARIN Region origin ASes announcing only one prefix: 3833 ARIN Region transit ASes present in the Internet Routing Table: 861 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: 2162 Number of ARIN addresses announced to Internet: 1023584265 Equivalent to 61 /8s, 2 /16s and 168 /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: 47973 Total RIPE prefixes after maximum aggregation: 25851 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50225 Unique aggregates announced from the RIPE address blocks: 36841 RIPE Region origin ASes present in the Internet Routing Table: 4521 RIPE Prefixes per ASN: 11.11 RIPE Region origin ASes announcing only one prefix: 1889 RIPE Region transit ASes present in the Internet Routing Table: 686 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1864 Number of RIPE addresses announced to Internet: 277581904 Equivalent to 16 /8s, 139 /16s and 144 /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: 56377 Total LACNIC prefixes after maximum aggregation: 16821 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 54477 Unique aggregates announced from the LACNIC address blocks: 24847 LACNIC Region origin ASes present in the Internet Routing Table: 4563 LACNIC Prefixes per ASN: 11.94 LACNIC Region origin ASes announcing only one prefix: 1588 LACNIC Region transit ASes present in the Internet Routing Table: 920 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3517 Number of LACNIC addresses announced to Internet: 108008768 Equivalent to 6 /8s, 112 /16s and 21 /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: 10878 Total AfriNIC prefixes after maximum aggregation: 2306 AfriNIC Deaggregation factor: 4.72 Prefixes being announced from the AfriNIC address blocks: 13294 Unique aggregates announced from the AfriNIC address blocks: 4017 AfriNIC Region origin ASes present in the Internet Routing Table: 279 AfriNIC Prefixes per ASN: 47.65 AfriNIC Region origin ASes announcing only one prefix: 99 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142 Number of AfriNIC addresses announced to Internet: 45985024 Equivalent to 2 /8s, 189 /16s and 173 /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 12724 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 541 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 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 14148 40856 5387 AMAZON-02, US 22773 3349 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2967 231 1742 USDA-1, US 36352 2522 207 1166 AS-COLOCROSSING, US 367 2366 2671 1107 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1439 1019 112 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 1205 94 981 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 8452 770 1841 16 TE-AS TE-AS, EG 212238 680 49 607 CDNEXT, GB 34984 609 92 476 TELLCOM-AS, TR 8376 595 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 6548 1799 788 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1351 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 795 278 29 Techtel LMDS Comunicaciones Interactivas 22884 693 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1257 572 23 RAYA-AS, EG 29571 1145 93 59 ORANGE-COTE-IVOIRE, CI 37069 999 1096 13 MOBINIL, EG 24863 979 389 23 LINKdotNET-AS, EG 36935 608 519 31 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36992 497 1089 216 ETISALAT-MISR, EG 36914 495 82 3 KENET-AS, KE 36903 454 203 332 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 14148 40856 5387 AMAZON-02, US 9808 12724 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 6548 1799 788 UNINET, MX 22773 3349 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2967 231 1742 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2522 207 1166 AS-COLOCROSSING, US 367 2366 2671 1107 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 12724 12610 CHINAMOBILE-CN China Mobile Communications Grou 8151 6548 5760 UNINET, MX 22773 3349 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 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 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 /12:157 /13:214 /14:584 /15:1107 /16:7590 /17:3416 /18:4111 /19:7522 /20:13158 /21:15743 /22:28291 /23:29174 /24:166013 /25:67 /26:83 /27:52 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3416 6548 UNINET, MX 22773 2503 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2393 14148 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1392 BRIGHTSPEED, US 36352 1002 2522 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:23 2:520 3:919 4:5 5:818 6:143 7:5 8:645 9:3 11:171 12:883 13:447 14:119 15:338 16:264 17:3 18:896 20:193 21:4 22:188 23:2669 24:669 27:26 29:19 31:471 32:12 34:12 35:174 36:3080 37:798 38:2609 39:635 40:93 41:987 42:21 43:207 44:28 45:4304 46:982 47:114 49:21 50:476 51:383 52:1425 54:352 55:1110 56:11 57:23 58:17 59:33 60:30 61:53 62:480 63:774 64:1941 65:1090 66:1571 67:1076 68:366 69:1231 70:447 71:184 72:692 74:959 75:321 76:249 77:433 78:366 79:239 80:304 81:365 82:709 83:206 84:306 85:501 86:248 87:217 88:308 89:707 90:106 91:937 92:679 93:434 94:970 95:652 96:265 97:53 98:491 99:216 100:28 101:21 102:371 103:1208 104:1671 105:181 106:54 107:1551 108:525 109:392 110:52 111:2249 112:868 113:30 114:49 115:16 116:53 117:1215 118:67 119:66 120:1504 121:45 122:61 123:130 124:76 125:25 126:1 128:541 129:397 130:646 131:1101 132:557 133:221 134:506 135:123 136:677 137:505 138:1045 139:444 140:688 141:373 142:986 143:849 144:402 145:153 146:644 147:491 148:993 149:763 150:199 151:777 152:630 153:180 154:891 155:940 156:862 157:438 158:624 159:715 160:896 161:674 162:1011 163:443 164:763 165:620 166:813 167:707 168:1541 169:160 170:1863 171:100 172:1319 173:815 174:366 175:90 176:475 177:1021 178:579 179:923 180:41 181:2346 182:25 183:1166 184:451 185:3351 186:3145 187:1703 188:767 189:1802 190:6090 191:560 192:5225 193:1785 194:1164 195:929 196:705 197:1108 198:2723 199:5159 200:4431 201:3559 202:986 203:707 204:2194 205:1811 206:1588 207:1600 208:1563 209:2011 210:345 211:476 212:871 213:748 214:959 215:39 216:2490 217:434 218:595 219:18 220:32 221:452 222:24 223:1262 End of report