IPv4 R&E Routing Table Report 20:15 GMT Wed 08 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: 279191 Prefixes after maximum aggregation (per Origin AS): 118112 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141624 Number of IPv4 prefixes with a valid ROA: 131356 Number of IPv4 prefixes with an invalid ROA: 228 Number of IPv4 prefixes with no ROA: 147607 Total ASes present in the Internet Routing Table: 20102 Prefixes per ASN: 13.89 Origin-only ASes present in the Internet Routing Table: 17348 Origin ASes announcing only one prefix: 7741 Transit ASes present in the Internet Routing Table: 2754 Transit-only ASes present in the Internet Routing Table: 682 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 317 Number of instances of unregistered ASNs: 346 Number of 32-bit ASNs allocated by the RIRs: 47637 Number of 32-bit ASNs visible in the Routing Table: 7946 Prefixes from 32-bit ASNs in the Routing Table: 32750 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: 105 Number of addresses announced to Internet: 1611247013 Equivalent to 96 /8s, 9 /16s and 173 /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: 87922 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38612 Total APNIC prefixes after maximum aggregation: 7890 APNIC Deaggregation factor: 4.89 Prefixes being announced from the APNIC address blocks: 37615 Unique aggregates announced from the APNIC address blocks: 8250 APNIC Region origin ASes present in the Internet Routing Table: 1156 APNIC Prefixes per ASN: 32.54 APNIC Region origin ASes announcing only one prefix: 447 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: 527 Number of APNIC addresses announced to Internet: 163855212 Equivalent to 9 /8s, 196 /16s and 59 /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: 126786 Total ARIN prefixes after maximum aggregation: 66118 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124157 Unique aggregates announced from the ARIN address blocks: 67537 ARIN Region origin ASes present in the Internet Routing Table: 9212 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: 2181 Number of ARIN addresses announced to Internet: 1019858409 Equivalent to 60 /8s, 201 /16s and 205 /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: 46580 Total RIPE prefixes after maximum aggregation: 24979 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 48960 Unique aggregates announced from the RIPE address blocks: 35851 RIPE Region origin ASes present in the Internet Routing Table: 4276 RIPE Prefixes per ASN: 11.45 RIPE Region origin ASes announcing only one prefix: 1805 RIPE Region transit ASes present in the Internet Routing Table: 675 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: 1768 Number of RIPE addresses announced to Internet: 274606928 Equivalent to 16 /8s, 94 /16s and 43 /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: 56349 Total LACNIC prefixes after maximum aggregation: 16228 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 54479 Unique aggregates announced from the LACNIC address blocks: 24092 LACNIC Region origin ASes present in the Internet Routing Table: 4349 LACNIC Prefixes per ASN: 12.53 LACNIC Region origin ASes announcing only one prefix: 1539 LACNIC Region transit ASes present in the Internet Routing Table: 844 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: 3312 Number of LACNIC addresses announced to Internet: 108248320 Equivalent to 6 /8s, 115 /16s and 189 /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: 10547 Total AfriNIC prefixes after maximum aggregation: 2641 AfriNIC Deaggregation factor: 3.99 Prefixes being announced from the AfriNIC address blocks: 13875 Unique aggregates announced from the AfriNIC address blocks: 5794 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 47.52 AfriNIC Region origin ASes announcing only one prefix: 103 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: 44566784 Equivalent to 2 /8s, 168 /16s and 9 /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 621 272 206 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 14304 40992 5379 AMAZON-02, US 22773 4016 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3106 241 1726 USDA-1, US 36352 2560 209 1173 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1906 259 215 ATLANTICBB-JOHNSTOWN, US 367 1872 2135 876 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1442 681 719 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 39891 1934 129 48 ALJAWWALSTC-AS, SA 20940 1244 97 1011 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 862 1304 131 SAUDINETSTC-AS, SA 8452 808 1841 16 TE-AS TE-AS, EG 212238 716 53 634 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 531 129 447 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 7246 1960 781 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1670 239 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1239 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 26615 1009 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 1211 385 94 RAYA-AS, EG 24863 1016 389 22 LINKdotNET-AS, EG 37069 961 1096 13 MOBINIL, EG 36992 593 1091 304 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 29571 481 98 68 ORANGE-COTE-IVOIRE, CI 36903 463 208 334 MT-MPLS, MA 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 14304 40992 5379 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7246 1960 781 UNINET, MX 22773 4016 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3106 241 1726 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2560 209 1173 AS-COLOCROSSING, US 11830 1988 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 7246 6465 UNINET, MX 22773 4016 3655 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1934 1886 ALJAWWALSTC-AS, SA 11776 1906 1691 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 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 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 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 /12:158 /13:214 /14:583 /15:1097 /16:7567 /17:3418 /18:4145 /19:7656 /20:12907 /21:15832 /22:28207 /23:29081 /24:167983 /25:64 /26:81 /27:48 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3920 7246 UNINET, MX 22773 2528 4016 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2400 14304 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1057 1442 BRIGHTSPEED, US 36352 1040 2560 AS-COLOCROSSING, US 10620 981 1670 Telmex Colombia S.A., CO 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11664 910 1239 Techtel LMDS Comunicaciones Interactivas S.A., AR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:488 3:935 4:5 5:752 6:157 7:5 8:626 9:5 11:171 12:889 13:503 14:171 15:343 16:274 17:3 18:898 20:195 21:4 22:188 23:2582 24:685 27:56 29:19 31:462 32:13 34:11 35:180 36:3178 37:870 38:2474 39:730 40:93 41:1082 42:145 43:196 44:26 45:4212 46:981 47:116 49:21 50:478 51:391 52:1441 54:352 55:1092 56:11 57:29 58:17 59:27 60:147 61:100 62:548 63:757 64:1940 65:1031 66:1636 67:1082 68:384 69:1148 70:447 71:179 72:765 74:978 75:310 76:255 77:396 78:298 79:230 80:298 81:380 82:737 83:197 84:339 85:507 86:246 87:184 88:299 89:697 90:105 91:891 92:652 93:411 94:967 95:683 96:263 97:50 98:496 99:231 100:30 101:20 102:425 103:1060 104:1644 105:174 106:74 107:1580 108:524 109:350 110:107 111:2440 112:1045 113:31 114:32 115:63 116:58 117:1418 118:67 119:70 120:1608 121:30 122:94 123:187 124:178 125:26 128:555 129:401 130:611 131:1061 132:577 133:222 134:482 135:125 136:667 137:498 138:999 139:459 140:729 141:358 142:1109 143:860 144:406 145:161 146:655 147:484 148:969 149:660 150:204 151:786 152:661 153:176 154:1189 155:895 156:1161 157:435 158:587 159:746 160:608 161:698 162:1008 163:443 164:748 165:616 166:813 167:680 168:1510 169:156 170:1839 171:99 172:1297 173:797 174:370 175:137 176:437 177:887 178:668 179:887 180:36 181:2374 182:28 183:1448 184:452 185:3159 186:3227 187:1637 188:779 189:1808 190:6321 191:555 192:5089 193:1708 194:1007 195:920 196:752 197:1154 198:2692 199:5235 200:4379 201:3637 202:1007 203:793 204:2150 205:1831 206:1544 207:1597 208:1543 209:1945 210:514 211:509 212:962 213:714 214:956 215:40 216:2436 217:449 218:708 219:18 220:124 221:473 222:26 223:1453 End of report