IPv4 R&E Routing Table Report 20:15 GMT Sun 28 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: 277634 Prefixes after maximum aggregation (per Origin AS): 118452 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142052 Number of IPv4 prefixes with a valid ROA: 130138 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 147284 Total ASes present in the Internet Routing Table: 20223 Prefixes per ASN: 13.73 Origin-only ASes present in the Internet Routing Table: 17446 Origin ASes announcing only one prefix: 7797 Transit ASes present in the Internet Routing Table: 2777 Transit-only ASes present in the Internet Routing Table: 678 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: 313 Number of instances of unregistered ASNs: 342 Number of 32-bit ASNs allocated by the RIRs: 47585 Number of 32-bit ASNs visible in the Routing Table: 8049 Prefixes from 32-bit ASNs in the Routing Table: 33164 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: 94 Number of addresses announced to Internet: 1612696861 Equivalent to 96 /8s, 31 /16s and 205 /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: 87193 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38382 Total APNIC prefixes after maximum aggregation: 7816 APNIC Deaggregation factor: 4.91 Prefixes being announced from the APNIC address blocks: 37327 Unique aggregates announced from the APNIC address blocks: 8000 APNIC Region origin ASes present in the Internet Routing Table: 1167 APNIC Prefixes per ASN: 31.99 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 188 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: 530 Number of APNIC addresses announced to Internet: 163622628 Equivalent to 9 /8s, 192 /16s and 174 /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: 126732 Total ARIN prefixes after maximum aggregation: 66208 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124170 Unique aggregates announced from the ARIN address blocks: 67789 ARIN Region origin ASes present in the Internet Routing Table: 9210 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3847 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: 2174 Number of ARIN addresses announced to Internet: 1022057449 Equivalent to 60 /8s, 235 /16s and 91 /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: 45415 Total RIPE prefixes after maximum aggregation: 25010 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 47788 Unique aggregates announced from the RIPE address blocks: 35797 RIPE Region origin ASes present in the Internet Routing Table: 4282 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1799 RIPE Region transit ASes present in the Internet Routing Table: 667 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1781 Number of RIPE addresses announced to Internet: 274291024 Equivalent to 16 /8s, 89 /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: 56634 Total LACNIC prefixes after maximum aggregation: 16492 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54707 Unique aggregates announced from the LACNIC address blocks: 24636 LACNIC Region origin ASes present in the Internet Routing Table: 4454 LACNIC Prefixes per ASN: 12.28 LACNIC Region origin ASes announcing only one prefix: 1580 LACNIC Region transit ASes present in the Internet Routing Table: 878 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: 3403 Number of LACNIC addresses announced to Internet: 108502784 Equivalent to 6 /8s, 119 /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: 10158 Total AfriNIC prefixes after maximum aggregation: 2670 AfriNIC Deaggregation factor: 3.80 Prefixes being announced from the AfriNIC address blocks: 13548 Unique aggregates announced from the AfriNIC address blocks: 5737 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 46.08 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 161 Number of AfriNIC addresses announced to Internet: 44114176 Equivalent to 2 /8s, 161 /16s and 33 /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 13478 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 619 272 204 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 14303 40901 5394 AMAZON-02, US 22773 3947 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3066 237 1698 USDA-1, US 36352 2511 206 1168 AS-COLOCROSSING, US 6167 1933 4003 514 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 367 1886 2171 880 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1430 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 1247 98 1010 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 802 1841 16 TE-AS TE-AS, EG 212238 707 52 626 CDNEXT, GB 34984 621 108 480 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 529 129 445 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 7296 1964 788 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, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 818 278 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 24863 995 389 23 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 24835 948 420 136 RAYA-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36992 563 1069 299 ETISALAT-MISR, EG 36914 559 82 3 KENET-AS, KE 36903 485 220 344 MT-MPLS, MA 29571 478 98 68 ORANGE-COTE-IVOIRE, CI 36935 442 116 132 Vodafone-, EG 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 14303 40901 5394 AMAZON-02, US 9808 13478 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7296 1964 788 UNINET, MX 22773 3947 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3066 237 1698 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2511 206 1168 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 6167 1933 4003 514 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 13478 13360 CHINAMOBILE-CN China Mobile Communications Grou 8151 7296 6508 UNINET, MX 22773 3947 3633 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 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1733 1655 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 /11:50 /12:159 /13:214 /14:582 /15:1101 /16:7561 /17:3417 /18:4141 /19:7616 /20:12496 /21:15737 /22:27926 /23:28862 /24:167482 /25:64 /26:80 /27:49 /28:18 /29:7 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3953 7296 UNINET, MX 22773 2512 3947 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2430 14303 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1044 1420 BRIGHTSPEED, US 36352 991 2511 AS-COLOCROSSING, US 10620 979 1668 Telmex Colombia S.A., CO 209 959 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 2:299 3:931 4:5 5:574 6:157 7:5 8:627 9:5 11:171 12:889 13:492 14:170 15:341 16:266 17:3 18:894 20:195 21:4 22:188 23:2560 24:679 27:54 29:19 31:463 32:13 34:11 35:180 36:3179 37:768 38:2482 39:730 40:93 41:1050 42:21 43:200 44:26 45:4269 46:965 47:117 49:21 50:476 51:388 52:1432 54:355 55:1036 56:11 57:29 58:17 59:30 60:146 61:93 62:527 63:761 64:1814 65:1070 66:1560 67:1062 68:377 69:1195 70:446 71:178 72:703 74:979 75:307 76:248 77:402 78:309 79:235 80:317 81:364 82:743 83:203 84:335 85:562 86:244 87:188 88:306 89:833 90:106 91:909 92:667 93:420 94:935 95:404 96:263 97:50 98:482 99:256 100:28 101:20 102:414 103:1078 104:1662 105:174 106:71 107:1554 108:514 109:373 110:102 111:2439 112:1041 113:33 114:45 115:63 116:58 117:1417 118:67 119:69 120:1608 121:34 122:94 123:186 124:178 125:26 126:1 128:555 129:405 130:606 131:1059 132:574 133:221 134:483 135:121 136:683 137:503 138:1011 139:461 140:730 141:460 142:984 143:871 144:409 145:163 146:659 147:514 148:979 149:651 150:201 151:855 152:574 153:177 154:1186 155:933 156:1227 157:438 158:588 159:734 160:598 161:694 162:1009 163:441 164:749 165:615 166:813 167:694 168:1525 169:147 170:1866 171:103 172:1320 173:800 174:363 175:137 176:432 177:902 178:620 179:885 180:38 181:2339 182:25 183:1429 184:450 185:3114 186:3102 187:1684 188:759 189:1887 190:6303 191:587 192:5086 193:1696 194:1031 195:885 196:749 197:1127 198:2715 199:5230 200:4534 201:3723 202:1006 203:789 204:2181 205:1808 206:1583 207:1584 208:1587 209:1962 210:510 211:507 212:955 213:738 214:948 215:40 216:2550 217:454 218:708 219:18 220:127 221:473 222:26 223:1442 End of report