IPv4 R&E Routing Table Report 20:15 GMT Sun 05 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: 279171 Prefixes after maximum aggregation (per Origin AS): 118201 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141573 Number of IPv4 prefixes with a valid ROA: 131209 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 147753 Total ASes present in the Internet Routing Table: 20117 Prefixes per ASN: 13.88 Origin-only ASes present in the Internet Routing Table: 17359 Origin ASes announcing only one prefix: 7736 Transit ASes present in the Internet Routing Table: 2758 Transit-only ASes present in the Internet Routing Table: 671 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: 308 Number of instances of unregistered ASNs: 337 Number of 32-bit ASNs allocated by the RIRs: 47653 Number of 32-bit ASNs visible in the Routing Table: 7984 Prefixes from 32-bit ASNs in the Routing Table: 32683 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: 88 Number of addresses announced to Internet: 1611722917 Equivalent to 96 /8s, 16 /16s and 240 /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: 87802 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38770 Total APNIC prefixes after maximum aggregation: 7969 APNIC Deaggregation factor: 4.87 Prefixes being announced from the APNIC address blocks: 37691 Unique aggregates announced from the APNIC address blocks: 8322 APNIC Region origin ASes present in the Internet Routing Table: 1157 APNIC Prefixes per ASN: 32.58 APNIC Region origin ASes announcing only one prefix: 442 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: 163979116 Equivalent to 9 /8s, 198 /16s and 31 /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: 126649 Total ARIN prefixes after maximum aggregation: 66041 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124008 Unique aggregates announced from the ARIN address blocks: 67443 ARIN Region origin ASes present in the Internet Routing Table: 9204 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3838 ARIN Region transit ASes present in the Internet Routing Table: 854 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: 2180 Number of ARIN addresses announced to Internet: 1019836649 Equivalent to 60 /8s, 201 /16s and 120 /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: 46432 Total RIPE prefixes after maximum aggregation: 24911 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 48932 Unique aggregates announced from the RIPE address blocks: 35793 RIPE Region origin ASes present in the Internet Routing Table: 4276 RIPE Prefixes per ASN: 11.44 RIPE Region origin ASes announcing only one prefix: 1802 RIPE Region transit ASes present in the Internet Routing Table: 664 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: 1771 Number of RIPE addresses announced to Internet: 274720336 Equivalent to 16 /8s, 95 /16s and 230 /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: 56598 Total LACNIC prefixes after maximum aggregation: 16394 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54655 Unique aggregates announced from the LACNIC address blocks: 24131 LACNIC Region origin ASes present in the Internet Routing Table: 4387 LACNIC Prefixes per ASN: 12.46 LACNIC Region origin ASes announcing only one prefix: 1552 LACNIC Region transit ASes present in the Internet Routing Table: 852 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: 3357 Number of LACNIC addresses announced to Internet: 108385024 Equivalent to 6 /8s, 117 /16s and 211 /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: 10414 Total AfriNIC prefixes after maximum aggregation: 2632 AfriNIC Deaggregation factor: 3.96 Prefixes being announced from the AfriNIC address blocks: 13797 Unique aggregates announced from the AfriNIC address blocks: 5797 AfriNIC Region origin ASes present in the Internet Routing Table: 288 AfriNIC Prefixes per ASN: 47.91 AfriNIC Region origin ASes announcing only one prefix: 102 AfriNIC Region transit ASes present in the Internet Routing Table: 72 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: 154 Number of AfriNIC addresses announced to Internet: 44695296 Equivalent to 2 /8s, 169 /16s and 255 /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 621 272 205 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 14282 40991 5380 AMAZON-02, US 22773 3972 3049 334 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3087 239 1715 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 1878 2136 883 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1434 678 716 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 1253 99 1018 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 861 1304 131 SAUDINETSTC-AS, SA 8452 801 1841 16 TE-AS TE-AS, EG 212238 711 52 630 CDNEXT, GB 34984 618 105 476 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 1670 239 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1231 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1009 2486 56 TIM SA, BR 18881 891 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 1186 397 100 RAYA-AS, EG 24863 1016 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 569 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 14282 40991 5380 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 3087 239 1715 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 23.140.216.0/24 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 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 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 /16:7565 /17:3414 /18:4136 /19:7650 /20:12904 /21:15855 /22:28265 /23:29021 /24:167964 /25:64 /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 14282 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1054 1434 BRIGHTSPEED, US 36352 1037 2557 AS-COLOCROSSING, US 10620 981 1670 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) ---------------------------------------------- 1:27 2:487 3:943 4:5 5:741 6:156 7:5 8:625 9:5 11:171 12:888 13:503 14:171 15:344 16:269 17:3 18:899 20:195 21:4 22:188 23:2547 24:684 27:54 29:19 31:479 32:13 34:10 35:180 36:3177 37:816 38:2489 39:730 40:93 41:1063 42:145 43:197 44:27 45:4254 46:974 47:112 49:21 50:477 51:389 52:1419 54:351 55:1113 56:11 57:29 58:17 59:30 60:147 61:100 62:528 63:757 64:1949 65:1033 66:1623 67:1092 68:386 69:1147 70:447 71:178 72:755 74:981 75:304 76:243 77:414 78:297 79:231 80:312 81:359 82:743 83:199 84:334 85:498 86:248 87:184 88:299 89:664 90:105 91:883 92:664 93:415 94:913 95:685 96:280 97:61 98:495 99:225 100:30 101:20 102:412 103:1065 104:1626 105:169 106:81 107:1549 108:521 109:351 110:107 111:2442 112:1050 113:32 114:39 115:63 116:58 117:1418 118:67 119:70 120:1608 121:30 122:94 123:187 124:178 125:26 128:555 129:402 130:614 131:1049 132:574 133:221 134:485 135:121 136:675 137:504 138:994 139:453 140:745 141:358 142:1100 143:870 144:404 145:160 146:653 147:467 148:960 149:655 150:204 151:786 152:663 153:176 154:1163 155:885 156:1256 157:436 158:586 159:751 160:597 161:697 162:1008 163:445 164:748 165:623 166:812 167:688 168:1504 169:154 170:1844 171:99 172:1294 173:798 174:370 175:137 176:438 177:878 178:682 179:888 180:37 181:2381 182:28 183:1448 184:449 185:3146 186:3209 187:1665 188:811 189:1824 190:6370 191:551 192:5072 193:1717 194:1026 195:919 196:757 197:1139 198:2708 199:5223 200:4421 201:3649 202:996 203:801 204:2150 205:1823 206:1540 207:1600 208:1554 209:1945 210:514 211:509 212:967 213:712 214:949 215:40 216:2395 217:464 218:708 219:18 220:128 221:473 222:26 223:1453 End of report