IPv4 R&E Routing Table Report 20:15 GMT Tue 26 Aug, 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: 280384 Prefixes after maximum aggregation (per Origin AS): 120370 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143047 Number of IPv4 prefixes with a valid ROA: 131936 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148406 Total ASes present in the Internet Routing Table: 20772 Prefixes per ASN: 13.50 Origin-only ASes present in the Internet Routing Table: 17891 Origin ASes announcing only one prefix: 7978 Transit ASes present in the Internet Routing Table: 2881 Transit-only ASes present in the Internet Routing Table: 708 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: 341 Number of instances of unregistered ASNs: 370 Number of 32-bit ASNs allocated by the RIRs: 47271 Number of 32-bit ASNs visible in the Routing Table: 8286 Prefixes from 32-bit ASNs in the Routing Table: 33797 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: 99 Number of addresses announced to Internet: 1628284421 Equivalent to 97 /8s, 13 /16s and 166 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 89626 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36045 Total APNIC prefixes after maximum aggregation: 7387 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 35024 Unique aggregates announced from the APNIC address blocks: 7489 APNIC Region origin ASes present in the Internet Routing Table: 1192 APNIC Prefixes per ASN: 29.38 APNIC Region origin ASes announcing only one prefix: 464 APNIC Region transit ASes present in the Internet Routing Table: 186 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: 554 Number of APNIC addresses announced to Internet: 163511404 Equivalent to 9 /8s, 190 /16s and 252 /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: 126517 Total ARIN prefixes after maximum aggregation: 66629 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125047 Unique aggregates announced from the ARIN address blocks: 68485 ARIN Region origin ASes present in the Internet Routing Table: 9254 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3843 ARIN Region transit ASes present in the Internet Routing Table: 870 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: 1023732489 Equivalent to 61 /8s, 4 /16s and 235 /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: 49590 Total RIPE prefixes after maximum aggregation: 26921 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51728 Unique aggregates announced from the RIPE address blocks: 37928 RIPE Region origin ASes present in the Internet Routing Table: 4728 RIPE Prefixes per ASN: 10.94 RIPE Region origin ASes announcing only one prefix: 1987 RIPE Region transit ASes present in the Internet Routing Table: 719 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1987 Number of RIPE addresses announced to Internet: 283790672 Equivalent to 16 /8s, 234 /16s and 77 /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: 56601 Total LACNIC prefixes after maximum aggregation: 16763 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 54734 Unique aggregates announced from the LACNIC address blocks: 24914 LACNIC Region origin ASes present in the Internet Routing Table: 4441 LACNIC Prefixes per ASN: 12.32 LACNIC Region origin ASes announcing only one prefix: 1564 LACNIC Region transit ASes present in the Internet Routing Table: 887 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3397 Number of LACNIC addresses announced to Internet: 108561216 Equivalent to 6 /8s, 120 /16s and 131 /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: 11290 Total AfriNIC prefixes after maximum aggregation: 2413 AfriNIC Deaggregation factor: 4.68 Prefixes being announced from the AfriNIC address blocks: 13752 Unique aggregates announced from the AfriNIC address blocks: 4137 AfriNIC Region origin ASes present in the Internet Routing Table: 314 AfriNIC Prefixes per ASN: 43.80 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 83 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: 175 Number of AfriNIC addresses announced to Internet: 48576768 Equivalent to 2 /8s, 229 /16s and 57 /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 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 827 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 463 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 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 14036 40853 5398 AMAZON-02, US 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2947 230 1748 USDA-1, US 36352 2514 207 1164 AS-COLOCROSSING, US 367 2401 2834 1118 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1650 4885 269 CENTURYLINK-US-LEGACY-QWEST, US 7018 1505 22795 1136 ATT-INTERNET4, 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 1196 93 977 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 658 47 590 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 595 53 26 Jordan Data Communications, JO 8452 574 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 5511 512 127 432 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 7198 1952 789 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1658 239 1205 Telmex Colombia S.A., CO 3816 1351 788 208 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 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 768 278 27 Techtel LMDS Comunicaciones Interactivas 22884 711 44 450 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1269 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 37069 955 1096 13 MOBINIL, EG 24863 814 389 23 LINKdotNET-AS, EG 36935 597 518 28 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 548 242 359 MT-MPLS, MA 36992 435 1038 212 ETISALAT-MISR, EG 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 14036 40853 5398 AMAZON-02, US 9808 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7198 1952 789 UNINET, MX 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2947 230 1748 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2514 207 1164 AS-COLOCROSSING, US 367 2401 2834 1118 DNIC-ASBLK-00306-00371, US 11830 1988 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 12726 12612 CHINAMOBILE-CN China Mobile Communications Grou 8151 7198 6409 UNINET, MX 22773 3350 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2910 2720 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 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 23.140.216.0/24 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 /11:52 /12:158 /13:223 /14:590 /15:1117 /16:7649 /17:3476 /18:4112 /19:7577 /20:13284 /21:15870 /22:28301 /23:29460 /24:168233 /25:65 /26:78 /27:43 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3875 7198 UNINET, MX 22773 2504 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2394 14036 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1392 BRIGHTSPEED, US 36352 1004 2514 AS-COLOCROSSING, US 10620 969 1658 Telmex Colombia S.A., CO 209 960 1650 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:44 2:462 3:920 4:5 5:869 6:143 7:5 8:649 9:3 11:171 12:887 13:429 14:121 15:330 16:247 17:3 18:896 20:191 21:4 22:188 23:2652 24:667 27:21 29:19 31:509 32:12 34:10 35:174 36:3078 37:826 38:2631 39:634 40:90 41:1095 42:282 43:204 44:30 45:4266 46:1038 47:114 49:25 50:481 51:383 52:1396 54:341 55:1101 56:11 57:24 58:44 59:30 60:32 61:53 62:538 63:794 64:1981 65:1111 66:1584 67:1087 68:370 69:1234 70:446 71:185 72:691 74:967 75:322 76:250 77:429 78:365 79:241 80:319 81:384 82:713 83:221 84:325 85:454 86:263 87:225 88:303 89:712 90:109 91:979 92:694 93:457 94:980 95:662 96:272 97:54 98:497 99:208 100:40 101:20 102:426 103:1226 104:1683 105:210 106:54 107:1549 108:536 109:394 110:52 111:2250 112:878 113:39 114:50 115:20 116:49 117:1217 118:68 119:65 120:1504 121:45 122:62 123:130 124:68 125:25 126:1 128:545 129:397 130:664 131:1015 132:558 133:221 134:508 135:121 136:681 137:520 138:1028 139:458 140:691 141:377 142:987 143:848 144:415 145:135 146:651 147:484 148:990 149:775 150:197 151:836 152:629 153:180 154:940 155:919 156:856 157:413 158:580 159:729 160:913 161:689 162:1028 163:454 164:757 165:684 166:809 167:706 168:1561 169:166 170:1857 171:102 172:1313 173:804 174:365 175:92 176:502 177:989 178:602 179:921 180:42 181:2314 182:24 183:1166 184:451 185:3567 186:3107 187:1769 188:822 189:1904 190:6068 191:548 192:5227 193:1853 194:1229 195:978 196:914 197:1172 198:2734 199:5157 200:4484 201:3653 202:970 203:701 204:2206 205:1815 206:1595 207:1617 208:1574 209:1995 210:344 211:477 212:938 213:767 214:972 215:39 216:2594 217:470 218:594 219:19 220:32 221:452 222:24 223:1266 End of report