IPv4 R&E Routing Table Report 20:15 GMT Fri 12 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: 277892 Prefixes after maximum aggregation (per Origin AS): 118375 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141293 Number of IPv4 prefixes with a valid ROA: 130618 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 147233 Total ASes present in the Internet Routing Table: 20411 Prefixes per ASN: 13.61 Origin-only ASes present in the Internet Routing Table: 17607 Origin ASes announcing only one prefix: 7840 Transit ASes present in the Internet Routing Table: 2804 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: 358 Number of instances of unregistered ASNs: 387 Number of 32-bit ASNs allocated by the RIRs: 47386 Number of 32-bit ASNs visible in the Routing Table: 8119 Prefixes from 32-bit ASNs in the Routing Table: 33241 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: 1617264101 Equivalent to 96 /8s, 101 /16s and 125 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87900 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36493 Total APNIC prefixes after maximum aggregation: 7653 APNIC Deaggregation factor: 4.77 Prefixes being announced from the APNIC address blocks: 35371 Unique aggregates announced from the APNIC address blocks: 7658 APNIC Region origin ASes present in the Internet Routing Table: 1152 APNIC Prefixes per ASN: 30.70 APNIC Region origin ASes announcing only one prefix: 445 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: 518 Number of APNIC addresses announced to Internet: 161918572 Equivalent to 9 /8s, 166 /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: 126262 Total ARIN prefixes after maximum aggregation: 65966 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123740 Unique aggregates announced from the ARIN address blocks: 67429 ARIN Region origin ASes present in the Internet Routing Table: 9191 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3827 ARIN Region transit ASes present in the Internet Routing Table: 859 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: 2170 Number of ARIN addresses announced to Internet: 1022167785 Equivalent to 60 /8s, 237 /16s and 10 /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: 48076 Total RIPE prefixes after maximum aggregation: 25814 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50401 Unique aggregates announced from the RIPE address blocks: 36977 RIPE Region origin ASes present in the Internet Routing Table: 4503 RIPE Prefixes per ASN: 11.19 RIPE Region origin ASes announcing only one prefix: 1889 RIPE Region transit ASes present in the Internet Routing Table: 688 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1853 Number of RIPE addresses announced to Internet: 278174288 Equivalent to 16 /8s, 148 /16s and 154 /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: 56041 Total LACNIC prefixes after maximum aggregation: 16295 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54142 Unique aggregates announced from the LACNIC address blocks: 24301 LACNIC Region origin ASes present in the Internet Routing Table: 4446 LACNIC Prefixes per ASN: 12.18 LACNIC Region origin ASes announcing only one prefix: 1570 LACNIC Region transit ASes present in the Internet Routing Table: 877 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: 3417 Number of LACNIC addresses announced to Internet: 108269888 Equivalent to 6 /8s, 116 /16s and 17 /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: 10662 Total AfriNIC prefixes after maximum aggregation: 2381 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 14147 Unique aggregates announced from the AfriNIC address blocks: 4838 AfriNIC Region origin ASes present in the Internet Routing Table: 302 AfriNIC Prefixes per ASN: 46.84 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 70 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: 46623744 Equivalent to 2 /8s, 199 /16s and 108 /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 13074 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2951 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1711 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 868 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 2907 608 2169 461 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 24445 562 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14346 40862 5372 AMAZON-02, US 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2999 233 1739 USDA-1, US 36352 2512 206 1169 AS-COLOCROSSING, US 367 2293 2601 1124 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 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 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1241 98 1007 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 808 1301 130 SAUDINETSTC-AS, SA 8452 775 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 648 110 502 TELLCOM-AS, TR 8376 591 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 CONTABO, DE 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 1964 784 UNINET, MX 11830 1714 328 9 Instituto Costarricense de Electricidad y 10620 1680 240 1218 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1179 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 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 1324 572 23 RAYA-AS, EG 24863 997 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 646 522 42 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 29571 516 98 68 ORANGE-COTE-IVOIRE, CI 36992 476 1085 219 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 2018 375 318 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 14346 40862 5372 AMAZON-02, US 9808 13074 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7297 1964 784 UNINET, MX 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2999 233 1739 USDA-1, US 56046 2951 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1169 AS-COLOCROSSING, US 367 2293 2601 1124 DNIC-ASBLK-00306-00371, US 39891 1936 130 50 ALJAWWALSTC-AS, SA 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 13074 12960 CHINAMOBILE-CN China Mobile Communications Grou 8151 7297 6513 UNINET, MX 22773 3955 3641 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2951 2760 CMNET-JIANGSU-AP China Mobile communications co 39891 1936 1886 ALJAWWALSTC-AS, SA 11830 1714 1705 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1711 1633 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 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 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 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 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 /12:156 /13:214 /14:585 /15:1108 /16:7569 /17:3413 /18:4101 /19:7649 /20:13098 /21:15833 /22:28266 /23:29193 /24:166359 /25:66 /26:83 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3948 7297 UNINET, MX 22773 2505 3955 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2433 14346 AMAZON-02, US 11830 1450 1714 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1033 1389 BRIGHTSPEED, US 36352 997 2512 AS-COLOCROSSING, US 10620 990 1680 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:478 3:923 4:5 5:757 6:146 7:5 8:642 9:3 11:171 12:891 13:503 14:169 15:341 16:265 17:3 18:896 20:193 21:4 22:188 23:2546 24:681 27:55 29:19 31:477 32:12 34:10 35:180 36:3106 37:782 38:2408 39:669 40:93 41:999 42:21 43:203 44:30 45:4313 46:974 47:118 49:20 50:471 51:383 52:1435 54:362 55:1110 56:11 57:26 58:17 59:36 60:90 61:59 62:525 63:768 64:1926 65:1091 66:1572 67:1066 68:361 69:1192 70:446 71:180 72:693 74:959 75:311 76:247 77:429 78:318 79:235 80:319 81:368 82:726 83:209 84:298 85:564 86:248 87:209 88:307 89:693 90:105 91:940 92:687 93:433 94:953 95:640 96:258 97:53 98:488 99:243 100:28 101:21 102:394 103:1054 104:1665 105:187 106:40 107:1547 108:533 109:382 110:101 111:2329 112:917 113:30 114:47 115:63 116:52 117:1296 118:70 119:70 120:1540 121:33 122:61 123:146 124:85 125:24 126:1 128:546 129:401 130:629 131:1060 132:568 133:221 134:454 135:121 136:681 137:495 138:994 139:437 140:694 141:361 142:980 143:872 144:396 145:163 146:667 147:503 148:978 149:660 150:204 151:786 152:501 153:181 154:1151 155:968 156:1259 157:447 158:594 159:720 160:630 161:688 162:1016 163:431 164:764 165:619 166:810 167:701 168:1515 169:161 170:1857 171:100 172:1295 173:814 174:361 175:91 176:462 177:902 178:624 179:890 180:39 181:2349 182:29 183:1330 184:452 185:3280 186:3117 187:1669 188:797 189:1866 190:6232 191:570 192:5134 193:1816 194:1137 195:940 196:756 197:1154 198:2712 199:5172 200:4439 201:3512 202:994 203:773 204:2179 205:1817 206:1586 207:1577 208:1556 209:1964 210:348 211:488 212:893 213:728 214:956 215:40 216:2488 217:460 218:602 219:18 220:85 221:456 222:24 223:1303 End of report