IPv4 R&E Routing Table Report 20:15 GMT Mon 06 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: 278965 Prefixes after maximum aggregation (per Origin AS): 118093 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141447 Number of IPv4 prefixes with a valid ROA: 131258 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 147498 Total ASes present in the Internet Routing Table: 20087 Prefixes per ASN: 13.89 Origin-only ASes present in the Internet Routing Table: 17343 Origin ASes announcing only one prefix: 7748 Transit ASes present in the Internet Routing Table: 2744 Transit-only ASes present in the Internet Routing Table: 670 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: 305 Number of instances of unregistered ASNs: 334 Number of 32-bit ASNs allocated by the RIRs: 47653 Number of 32-bit ASNs visible in the Routing Table: 7950 Prefixes from 32-bit ASNs in the Routing Table: 32616 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: 1611989157 Equivalent to 96 /8s, 21 /16s and 0 /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: 87731 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38673 Total APNIC prefixes after maximum aggregation: 7928 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 37688 Unique aggregates announced from the APNIC address blocks: 8318 APNIC Region origin ASes present in the Internet Routing Table: 1155 APNIC Prefixes per ASN: 32.63 APNIC Region origin ASes announcing only one prefix: 444 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: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 522 Number of APNIC addresses announced to Internet: 163976812 Equivalent to 9 /8s, 198 /16s and 22 /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: 126586 Total ARIN prefixes after maximum aggregation: 66016 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123934 Unique aggregates announced from the ARIN address blocks: 67431 ARIN Region origin ASes present in the Internet Routing Table: 9214 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3848 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2182 Number of ARIN addresses announced to Internet: 1020150505 Equivalent to 60 /8s, 206 /16s and 66 /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: 46487 Total RIPE prefixes after maximum aggregation: 24931 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 48969 Unique aggregates announced from the RIPE address blocks: 35786 RIPE Region origin ASes present in the Internet Routing Table: 4274 RIPE Prefixes per ASN: 11.46 RIPE Region origin ASes announcing only one prefix: 1796 RIPE Region transit ASes present in the Internet Routing Table: 662 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: 1773 Number of RIPE addresses announced to Internet: 274802000 Equivalent to 16 /8s, 97 /16s and 37 /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: 56540 Total LACNIC prefixes after maximum aggregation: 16342 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54616 Unique aggregates announced from the LACNIC address blocks: 24128 LACNIC Region origin ASes present in the Internet Routing Table: 4352 LACNIC Prefixes per ASN: 12.55 LACNIC Region origin ASes announcing only one prefix: 1554 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: 3317 Number of LACNIC addresses announced to Internet: 108367104 Equivalent to 6 /8s, 117 /16s and 141 /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: 10374 Total AfriNIC prefixes after maximum aggregation: 2625 AfriNIC Deaggregation factor: 3.95 Prefixes being announced from the AfriNIC address blocks: 13667 Unique aggregates announced from the AfriNIC address blocks: 5694 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 47.29 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: 156 Number of AfriNIC addresses announced to Internet: 44584704 Equivalent to 2 /8s, 168 /16s and 79 /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 620 272 205 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 14290 40988 5368 AMAZON-02, US 22773 3972 3049 334 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3089 240 1726 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 1881 2137 884 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1438 679 718 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 1251 98 1016 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 861 1304 131 SAUDINETSTC-AS, SA 8452 808 1841 16 TE-AS TE-AS, EG 212238 711 52 630 CDNEXT, GB 34984 619 105 477 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 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 7297 1962 785 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1669 239 1206 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1231 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1177 371 22 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 1182 381 99 RAYA-AS, EG 24863 1008 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 611 1112 309 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 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 14290 40988 5368 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7297 1962 785 UNINET, MX 22773 3972 3049 334 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3089 240 1726 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 7297 6512 UNINET, MX 22773 3972 3638 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 39891 1934 1886 ALJAWWALSTC-AS, SA 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 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 23.135.216.0/24 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 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 /15:1098 /16:7569 /17:3420 /18:4134 /19:7655 /20:12902 /21:15850 /22:28160 /23:29020 /24:167866 /25:56 /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 3962 7297 UNINET, MX 22773 2524 3972 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2385 14290 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1055 1438 BRIGHTSPEED, US 36352 1037 2557 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11664 910 1231 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) ---------------------------------------------- 1:26 2:484 3:943 4:5 5:740 6:156 7:5 8:625 9:5 11:171 12:888 13:506 14:171 15:344 16:269 17:3 18:895 20:195 21:4 22:188 23:2559 24:684 27:54 29:19 31:469 32:13 34:11 35:180 36:3179 37:847 38:2489 39:730 40:93 41:1063 42:145 43:197 44:27 45:4228 46:976 47:116 49:21 50:480 51:390 52:1421 54:352 55:1093 56:11 57:29 58:17 59:30 60:147 61:100 62:529 63:758 64:1941 65:1036 66:1632 67:1085 68:384 69:1145 70:447 71:178 72:752 74:981 75:304 76:236 77:394 78:297 79:230 80:310 81:376 82:739 83:199 84:333 85:507 86:248 87:182 88:299 89:675 90:105 91:893 92:664 93:412 94:908 95:674 96:264 97:50 98:496 99:228 100:30 101:20 102:411 103:1060 104:1626 105:169 106:81 107:1547 108:520 109:352 110:107 111:2442 112:1050 113:32 114:39 115:63 116:58 117:1418 118:67 119:70 120:1608 121:30 122:94 123:187 124:178 125:26 128:558 129:402 130:620 131:1058 132:574 133:222 134:484 135:124 136:674 137:503 138:994 139:460 140:743 141:359 142:1102 143:878 144:408 145:160 146:652 147:466 148:975 149:666 150:202 151:787 152:663 153:176 154:1176 155:893 156:1159 157:436 158:588 159:743 160:598 161:697 162:1008 163:443 164:751 165:615 166:811 167:686 168:1500 169:154 170:1837 171:99 172:1299 173:798 174:370 175:137 176:438 177:877 178:679 179:883 180:37 181:2379 182:28 183:1448 184:447 185:3147 186:3214 187:1670 188:791 189:1857 190:6360 191:556 192:5070 193:1717 194:1030 195:925 196:750 197:1139 198:2705 199:5220 200:4426 201:3653 202:999 203:800 204:2146 205:1817 206:1529 207:1595 208:1557 209:1941 210:513 211:509 212:961 213:706 214:949 215:40 216:2400 217:475 218:708 219:18 220:128 221:473 222:26 223:1453 End of report