IPv4 R&E Routing Table Report 20:15 GMT Tue 23 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: 278952 Prefixes after maximum aggregation (per Origin AS): 118451 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 142059 Number of IPv4 prefixes with a valid ROA: 130800 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 147940 Total ASes present in the Internet Routing Table: 20284 Prefixes per ASN: 13.75 Origin-only ASes present in the Internet Routing Table: 17486 Origin ASes announcing only one prefix: 7772 Transit ASes present in the Internet Routing Table: 2798 Transit-only ASes present in the Internet Routing Table: 672 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: 346 Number of instances of unregistered ASNs: 375 Number of 32-bit ASNs allocated by the RIRs: 47522 Number of 32-bit ASNs visible in the Routing Table: 8076 Prefixes from 32-bit ASNs in the Routing Table: 33498 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: 99 Number of addresses announced to Internet: 1615585765 Equivalent to 96 /8s, 75 /16s and 225 /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: 87976 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38281 Total APNIC prefixes after maximum aggregation: 7879 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 37192 Unique aggregates announced from the APNIC address blocks: 8023 APNIC Region origin ASes present in the Internet Routing Table: 1172 APNIC Prefixes per ASN: 31.73 APNIC Region origin ASes announcing only one prefix: 456 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: 531 Number of APNIC addresses announced to Internet: 163689324 Equivalent to 9 /8s, 193 /16s and 179 /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: 127368 Total ARIN prefixes after maximum aggregation: 66239 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124777 Unique aggregates announced from the ARIN address blocks: 68374 ARIN Region origin ASes present in the Internet Routing Table: 9190 ARIN Prefixes per ASN: 13.58 ARIN Region origin ASes announcing only one prefix: 3816 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 2161 Number of ARIN addresses announced to Internet: 1021880041 Equivalent to 60 /8s, 232 /16s and 166 /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: 45521 Total RIPE prefixes after maximum aggregation: 25126 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 47986 Unique aggregates announced from the RIPE address blocks: 36031 RIPE Region origin ASes present in the Internet Routing Table: 4357 RIPE Prefixes per ASN: 11.01 RIPE Region origin ASes announcing only one prefix: 1825 RIPE Region transit ASes present in the Internet Routing Table: 675 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1794 Number of RIPE addresses announced to Internet: 275142992 Equivalent to 16 /8s, 102 /16s and 89 /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: 56574 Total LACNIC prefixes after maximum aggregation: 16424 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54633 Unique aggregates announced from the LACNIC address blocks: 24401 LACNIC Region origin ASes present in the Internet Routing Table: 4450 LACNIC Prefixes per ASN: 12.28 LACNIC Region origin ASes announcing only one prefix: 1562 LACNIC Region transit ASes present in the Internet Routing Table: 887 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: 3424 Number of LACNIC addresses announced to Internet: 108437312 Equivalent to 6 /8s, 118 /16s and 159 /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: 10862 Total AfriNIC prefixes after maximum aggregation: 2522 AfriNIC Deaggregation factor: 4.31 Prefixes being announced from the AfriNIC address blocks: 14265 Unique aggregates announced from the AfriNIC address blocks: 5136 AfriNIC Region origin ASes present in the Internet Routing Table: 303 AfriNIC Prefixes per ASN: 47.08 AfriNIC Region origin ASes announcing only one prefix: 113 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 166 Number of AfriNIC addresses announced to Internet: 46327040 Equivalent to 2 /8s, 194 /16s and 229 /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 13405 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3042 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 920 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 659 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 618 272 205 SEEDNET Digital United Inc., TW 2907 610 2169 462 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 14349 40905 5412 AMAZON-02, US 22773 4613 3087 320 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3054 237 1712 USDA-1, US 36352 2513 206 1173 AS-COLOCROSSING, US 367 2065 2356 985 DNIC-ASBLK-00306-00371, US 6167 1933 4003 514 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 1217 96 993 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 807 1841 16 TE-AS TE-AS, EG 212238 708 51 626 CDNEXT, GB 34984 603 102 469 TELLCOM-AS, TR 8376 568 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 35819 543 541 84 MOBILY-AS Etihad Etisalat Company Mobily, 5511 523 128 439 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 7286 1962 786 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1187 371 23 Telefonica del Peru S.A.A., PE 26615 1004 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 815 278 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 1206 572 23 RAYA-AS, EG 24863 1024 389 23 LINKdotNET-AS, EG 37069 949 1096 13 MOBINIL, EG 36935 664 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 578 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 488 220 344 MT-MPLS, MA 29571 477 98 68 ORANGE-COTE-IVOIRE, CI 2018 376 318 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 14349 40905 5412 AMAZON-02, US 9808 13405 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7286 1962 786 UNINET, MX 22773 4613 3087 320 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3054 237 1712 USDA-1, US 56046 3042 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1173 AS-COLOCROSSING, US 367 2065 2356 985 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 13405 13287 CHINAMOBILE-CN China Mobile Communications Grou 8151 7286 6500 UNINET, MX 22773 4613 4293 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3042 2849 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 1933 1419 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 /12:159 /13:215 /14:586 /15:1109 /16:7570 /17:3420 /18:4147 /19:7607 /20:12620 /21:15824 /22:28297 /23:29047 /24:168004 /25:65 /26:82 /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 3945 7286 UNINET, MX 22773 3018 4613 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2446 14349 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1041 1412 BRIGHTSPEED, US 36352 995 2513 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 846 1933 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 2:289 3:938 4:5 5:587 6:152 7:5 8:627 9:5 11:171 12:890 13:492 14:170 15:342 16:266 17:3 18:897 20:194 21:4 22:188 23:2655 24:681 27:55 29:19 31:476 32:13 34:10 35:180 36:3149 37:771 38:2449 39:724 40:93 41:1086 42:21 43:202 44:27 45:4285 46:963 47:117 49:21 50:472 51:387 52:1469 54:355 55:1088 56:11 57:30 58:18 59:36 60:146 61:92 62:544 63:767 64:1813 65:1074 66:1846 67:1167 68:373 69:1202 70:451 71:180 72:703 74:980 75:302 76:248 77:417 78:310 79:235 80:317 81:363 82:742 83:201 84:334 85:567 86:248 87:195 88:304 89:698 90:106 91:916 92:677 93:425 94:967 95:411 96:262 97:50 98:481 99:251 100:28 101:21 102:436 103:1077 104:1656 105:257 106:71 107:1674 108:527 109:383 110:102 111:2413 112:1040 113:33 114:45 115:63 116:53 117:1399 118:71 119:71 120:1583 121:34 122:94 123:183 124:178 125:26 126:1 128:552 129:399 130:637 131:1054 132:565 133:220 134:475 135:119 136:683 137:497 138:995 139:460 140:730 141:375 142:983 143:890 144:405 145:163 146:665 147:524 148:996 149:643 150:202 151:857 152:530 153:173 154:1146 155:966 156:1240 157:436 158:600 159:731 160:608 161:687 162:1015 163:443 164:763 165:634 166:809 167:693 168:1509 169:154 170:1860 171:103 172:1314 173:815 174:364 175:128 176:433 177:924 178:622 179:900 180:38 181:2358 182:25 183:1422 184:451 185:3193 186:3125 187:1685 188:771 189:1857 190:6339 191:586 192:5080 193:1701 194:1046 195:895 196:765 197:1178 198:2709 199:5217 200:4449 201:3634 202:1007 203:774 204:2181 205:1809 206:1590 207:1575 208:1572 209:1962 210:511 211:504 212:910 213:694 214:956 215:40 216:2493 217:449 218:707 219:18 220:127 221:471 222:26 223:1416 End of report