IPv4 R&E Routing Table Report 20:15 GMT Sun 24 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: 280938 Prefixes after maximum aggregation (per Origin AS): 120501 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143520 Number of IPv4 prefixes with a valid ROA: 132355 Number of IPv4 prefixes with an invalid ROA: 47 Number of IPv4 prefixes with no ROA: 148536 Total ASes present in the Internet Routing Table: 20802 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 17915 Origin ASes announcing only one prefix: 7969 Transit ASes present in the Internet Routing Table: 2887 Transit-only ASes present in the Internet Routing Table: 709 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: 47270 Number of 32-bit ASNs visible in the Routing Table: 8284 Prefixes from 32-bit ASNs in the Routing Table: 33949 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: 1638498565 Equivalent to 97 /8s, 169 /16s and 129 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89621 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36458 Total APNIC prefixes after maximum aggregation: 7522 APNIC Deaggregation factor: 4.85 Prefixes being announced from the APNIC address blocks: 35340 Unique aggregates announced from the APNIC address blocks: 7799 APNIC Region origin ASes present in the Internet Routing Table: 1191 APNIC Prefixes per ASN: 29.67 APNIC Region origin ASes announcing only one prefix: 464 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: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 553 Number of APNIC addresses announced to Internet: 173818732 Equivalent to 10 /8s, 92 /16s and 67 /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: 126467 Total ARIN prefixes after maximum aggregation: 66641 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124921 Unique aggregates announced from the ARIN address blocks: 68484 ARIN Region origin ASes present in the Internet Routing Table: 9267 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3851 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2181 Number of ARIN addresses announced to Internet: 1023508233 Equivalent to 61 /8s, 1 /16s and 127 /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: 49709 Total RIPE prefixes after maximum aggregation: 27001 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51862 Unique aggregates announced from the RIPE address blocks: 38047 RIPE Region origin ASes present in the Internet Routing Table: 4731 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1983 RIPE Region transit ASes present in the Internet Routing Table: 714 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1980 Number of RIPE addresses announced to Internet: 283946320 Equivalent to 16 /8s, 236 /16s and 173 /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: 56715 Total LACNIC prefixes after maximum aggregation: 16614 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54847 Unique aggregates announced from the LACNIC address blocks: 24758 LACNIC Region origin ASes present in the Internet Routing Table: 4455 LACNIC Prefixes per ASN: 12.31 LACNIC Region origin ASes announcing only one prefix: 1553 LACNIC Region transit ASes present in the Internet Routing Table: 890 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: 3395 Number of LACNIC addresses announced to Internet: 108598080 Equivalent to 6 /8s, 121 /16s and 19 /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: 11248 Total AfriNIC prefixes after maximum aggregation: 2466 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 13869 Unique aggregates announced from the AfriNIC address blocks: 4338 AfriNIC Region origin ASes present in the Internet Routing Table: 315 AfriNIC Prefixes per ASN: 44.03 AfriNIC Region origin ASes announcing only one prefix: 118 AfriNIC Region transit ASes present in the Internet Routing Table: 83 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: 175 Number of AfriNIC addresses announced to Internet: 48515328 Equivalent to 2 /8s, 228 /16s and 73 /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 12736 8761 115 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 608 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 542 894 139 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 13978 40849 5374 AMAZON-02, US 22773 3329 3009 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2943 229 1742 USDA-1, US 36352 2517 207 1161 AS-COLOCROSSING, US 367 2397 2848 1106 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1651 4885 270 CENTURYLINK-US-LEGACY-QWEST, US 7018 1516 22796 1146 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 1200 94 983 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 665 48 593 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 598 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 8452 574 1841 16 TE-AS TE-AS, EG 51167 564 113 248 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 7190 1950 788 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 22 Telefonica del Peru S.A.A., PE 26615 1018 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 807 278 29 Techtel LMDS Comunicaciones Interactivas 27651 651 92 45 ENTEL CHILE S.A., CL 28006 644 76 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1265 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 37069 951 1096 13 MOBINIL, EG 24863 827 389 23 LINKdotNET-AS, EG 36935 615 520 39 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 563 246 362 MT-MPLS, MA 36914 482 82 3 KENET-AS, KE 36992 434 1038 211 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 13978 40849 5374 AMAZON-02, US 9808 12736 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7190 1950 788 UNINET, MX 22773 3329 3009 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2943 229 1742 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2517 207 1161 AS-COLOCROSSING, US 367 2397 2848 1106 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 12736 12621 CHINAMOBILE-CN China Mobile Communications Grou 8151 7190 6402 UNINET, MX 22773 3329 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 41.57.124.0/24 Origin: 37442 RESERVED, ZZ 41.57.124.0/24 Transit: 37204 TELONE, ZW 41.57.127.0/24 Origin: 37442 RESERVED, ZZ 41.57.127.0/24 Transit: 37204 TELONE, ZW 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 /11:52 /12:160 /13:223 /14:592 /15:1117 /16:7778 /17:3490 /18:4191 /19:7604 /20:13298 /21:15883 /22:28323 /23:29514 /24:168415 /25:67 /26:82 /27:52 /28:18 /29:9 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3869 7190 UNINET, MX 22773 2492 3329 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2378 13978 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1387 BRIGHTSPEED, US 36352 1005 2517 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 960 1651 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 3:919 4:5 5:870 6:145 7:5 8:647 9:2 11:171 12:885 13:424 14:121 15:327 16:247 17:3 18:893 20:191 21:4 22:188 23:2648 24:663 27:38 29:19 31:508 32:12 34:10 35:174 36:3077 37:843 38:2613 39:634 40:89 41:1031 42:282 43:204 44:30 45:4344 46:1033 47:113 49:25 50:481 51:384 52:1385 54:335 55:1109 56:11 57:25 58:44 59:30 60:32 61:53 62:556 63:784 64:1957 65:1104 66:1597 67:1084 68:369 69:1233 70:448 71:189 72:690 74:963 75:322 76:249 77:455 78:361 79:244 80:315 81:385 82:713 83:228 84:325 85:466 86:261 87:220 88:303 89:719 90:109 91:996 92:695 93:462 94:965 95:664 96:266 97:55 98:496 99:204 100:40 101:20 102:449 103:1216 104:1673 105:217 106:54 107:1549 108:534 109:401 110:53 111:2277 112:877 113:74 114:53 115:20 116:49 117:1217 118:68 119:65 120:1504 121:45 122:58 123:130 124:65 125:25 126:1 128:543 129:397 130:668 131:1018 132:550 133:221 134:508 135:121 136:682 137:515 138:1050 139:449 140:692 141:378 142:988 143:841 144:419 145:138 146:650 147:483 148:991 149:777 150:197 151:832 152:629 153:178 154:1001 155:910 156:933 157:418 158:577 159:729 160:912 161:656 162:1025 163:451 164:751 165:683 166:817 167:701 168:1557 169:166 170:1832 171:102 172:1316 173:824 174:367 175:86 176:508 177:1019 178:597 179:945 180:42 181:2310 182:29 183:1165 184:451 185:3576 186:3115 187:1643 188:830 189:1911 190:6078 191:553 192:5237 193:1854 194:1227 195:977 196:914 197:1145 198:2747 199:5156 200:4510 201:3654 202:969 203:728 204:2209 205:1821 206:1590 207:1614 208:1578 209:1973 210:344 211:485 212:943 213:777 214:953 215:39 216:2573 217:471 218:593 219:19 220:32 221:472 222:24 223:1268 End of report