IPv4 R&E Routing Table Report 20:15 GMT Tue 16 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: 276916 Prefixes after maximum aggregation (per Origin AS): 118368 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141324 Number of IPv4 prefixes with a valid ROA: 129380 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 147492 Total ASes present in the Internet Routing Table: 20351 Prefixes per ASN: 13.61 Origin-only ASes present in the Internet Routing Table: 17561 Origin ASes announcing only one prefix: 7818 Transit ASes present in the Internet Routing Table: 2790 Transit-only ASes present in the Internet Routing Table: 677 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: 353 Number of instances of unregistered ASNs: 382 Number of 32-bit ASNs allocated by the RIRs: 47428 Number of 32-bit ASNs visible in the Routing Table: 8105 Prefixes from 32-bit ASNs in the Routing Table: 33477 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: 92 Number of addresses announced to Internet: 1616019941 Equivalent to 96 /8s, 82 /16s and 129 /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: 87165 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36732 Total APNIC prefixes after maximum aggregation: 7649 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35650 Unique aggregates announced from the APNIC address blocks: 7666 APNIC Region origin ASes present in the Internet Routing Table: 1150 APNIC Prefixes per ASN: 31.00 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: 7.6 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 519 Number of APNIC addresses announced to Internet: 162097516 Equivalent to 9 /8s, 169 /16s and 105 /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: 126144 Total ARIN prefixes after maximum aggregation: 65989 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123694 Unique aggregates announced from the ARIN address blocks: 67579 ARIN Region origin ASes present in the Internet Routing Table: 9192 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3826 ARIN Region transit ASes present in the Internet Routing Table: 852 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: 2173 Number of ARIN addresses announced to Internet: 1022438633 Equivalent to 60 /8s, 241 /16s and 44 /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: 46468 Total RIPE prefixes after maximum aggregation: 25595 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 48737 Unique aggregates announced from the RIPE address blocks: 36518 RIPE Region origin ASes present in the Internet Routing Table: 4445 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1861 RIPE Region transit ASes present in the Internet Routing Table: 683 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1843 Number of RIPE addresses announced to Internet: 276653136 Equivalent to 16 /8s, 125 /16s and 100 /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: 56524 Total LACNIC prefixes after maximum aggregation: 16389 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54620 Unique aggregates announced from the LACNIC address blocks: 24416 LACNIC Region origin ASes present in the Internet Routing Table: 4448 LACNIC Prefixes per ASN: 12.28 LACNIC Region origin ASes announcing only one prefix: 1575 LACNIC Region transit ASes present in the Internet Routing Table: 876 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: 3410 Number of LACNIC addresses announced to Internet: 108506432 Equivalent to 6 /8s, 119 /16s and 173 /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: 10695 Total AfriNIC prefixes after maximum aggregation: 2486 AfriNIC Deaggregation factor: 4.30 Prefixes being announced from the AfriNIC address blocks: 14123 Unique aggregates announced from the AfriNIC address blocks: 5055 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 46.92 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 160 Number of AfriNIC addresses announced to Internet: 46210560 Equivalent to 2 /8s, 193 /16s and 30 /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 13182 8729 117 CHINAMOBILE-CN China Mobile Communication 56046 2969 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1715 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 862 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 622 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 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 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 14391 40913 5387 AMAZON-02, US 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3003 233 1730 USDA-1, US 36352 2511 206 1172 AS-COLOCROSSING, US 367 2297 2567 1121 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 11776 1632 258 210 ATLANTICBB-JOHNSTOWN, 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 20940 1242 98 1010 AKAMAI-ASN1, NL 3215 892 4819 296 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 622 107 483 TELLCOM-AS, TR 8376 586 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 35819 526 524 54 MOBILY-AS Etihad Etisalat Company Mobily, 5511 520 128 437 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 7298 1964 785 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1660 239 1207 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1181 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 814 278 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 1313 572 23 RAYA-AS, EG 24863 991 389 23 LINKdotNET-AS, EG 37069 961 1096 13 MOBINIL, EG 36935 649 522 42 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36992 569 1069 300 ETISALAT-MISR, EG 36914 566 82 3 KENET-AS, KE 29571 515 98 69 ORANGE-COTE-IVOIRE, CI 36903 454 203 332 MT-MPLS, MA 2018 374 318 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 14391 40913 5387 AMAZON-02, US 9808 13182 8729 117 CHINAMOBILE-CN China Mobile Communication 8151 7298 1964 785 UNINET, MX 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3003 233 1730 USDA-1, US 56046 2969 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2511 206 1172 AS-COLOCROSSING, US 367 2297 2567 1121 DNIC-ASBLK-00306-00371, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 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 13182 13065 CHINAMOBILE-CN China Mobile Communications Grou 8151 7298 6513 UNINET, MX 22773 3939 3626 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2969 2778 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1715 1637 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1632 1422 ATLANTICBB-JOHNSTOWN, US 6167 1934 1414 CELLCO-PART, US 209 1649 1381 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 /11:51 /12:156 /13:214 /14:585 /15:1108 /16:7577 /17:3403 /18:4081 /19:7503 /20:12761 /21:15761 /22:28241 /23:28928 /24:166249 /25:66 /26:83 /27:50 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3949 7298 UNINET, MX 22773 2505 3939 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2448 14391 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1036 1394 BRIGHTSPEED, US 36352 995 2511 AS-COLOCROSSING, US 10620 971 1660 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 6167 847 1934 CELLCO-PART, US 6147 766 1181 Telefonica del Peru S.A.A., PE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:270 3:928 4:5 5:595 6:144 7:5 8:638 9:3 11:171 12:891 13:506 14:169 15:340 16:265 17:3 18:895 20:193 21:4 22:188 23:2545 24:658 27:55 29:19 31:459 32:12 34:10 35:180 36:3124 37:755 38:2451 39:703 40:93 41:1057 42:21 43:200 44:30 45:4302 46:976 47:116 49:20 50:471 51:383 52:1438 54:364 55:1085 56:11 57:28 58:18 59:36 60:90 61:58 62:541 63:768 64:1811 65:1066 66:1533 67:1064 68:369 69:1186 70:445 71:180 72:695 74:960 75:260 76:235 77:430 78:318 79:237 80:332 81:368 82:752 83:207 84:339 85:556 86:248 87:208 88:305 89:845 90:106 91:934 92:687 93:428 94:961 95:380 96:261 97:50 98:488 99:253 100:28 101:23 102:400 103:1062 104:1664 105:187 106:40 107:1547 108:529 109:389 110:101 111:2370 112:935 113:29 114:47 115:63 116:52 117:1336 118:73 119:72 120:1558 121:33 122:61 123:149 124:85 125:24 126:1 128:550 129:397 130:630 131:1056 132:568 133:221 134:478 135:121 136:681 137:494 138:999 139:437 140:689 141:447 142:984 143:874 144:401 145:163 146:663 147:505 148:999 149:645 150:202 151:777 152:571 153:180 154:1160 155:978 156:1223 157:440 158:601 159:722 160:634 161:689 162:1011 163:446 164:752 165:615 166:809 167:699 168:1505 169:161 170:1851 171:105 172:1298 173:811 174:360 175:95 176:441 177:908 178:591 179:903 180:39 181:2362 182:28 183:1360 184:455 185:3208 186:3114 187:1687 188:760 189:1861 190:6319 191:587 192:5137 193:1798 194:1134 195:932 196:750 197:1141 198:2711 199:5174 200:4465 201:3640 202:997 203:771 204:2172 205:1812 206:1588 207:1574 208:1556 209:1962 210:348 211:492 212:893 213:750 214:954 215:40 216:2450 217:478 218:604 219:18 220:85 221:461 222:24 223:1349 End of report