IPv4 R&E Routing Table Report 20:15 GMT Fri 11 Jul, 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: 278148 Prefixes after maximum aggregation (per Origin AS): 120892 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 144064 Number of IPv4 prefixes with a valid ROA: 130260 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147846 Total ASes present in the Internet Routing Table: 20994 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 18068 Origin ASes announcing only one prefix: 8098 Transit ASes present in the Internet Routing Table: 2926 Transit-only ASes present in the Internet Routing Table: 733 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 355 Number of instances of unregistered ASNs: 387 Number of 32-bit ASNs allocated by the RIRs: 46790 Number of 32-bit ASNs visible in the Routing Table: 8426 Prefixes from 32-bit ASNs in the Routing Table: 33103 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 100 Number of addresses announced to Internet: 1642179077 Equivalent to 97 /8s, 225 /16s and 170 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89250 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34745 Total APNIC prefixes after maximum aggregation: 7757 APNIC Deaggregation factor: 4.48 Prefixes being announced from the APNIC address blocks: 33449 Unique aggregates announced from the APNIC address blocks: 8261 APNIC Region origin ASes present in the Internet Routing Table: 1258 APNIC Prefixes per ASN: 26.59 APNIC Region origin ASes announcing only one prefix: 499 APNIC Region transit ASes present in the Internet Routing Table: 202 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 597 Number of APNIC addresses announced to Internet: 173863788 Equivalent to 10 /8s, 92 /16s and 243 /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: 126037 Total ARIN prefixes after maximum aggregation: 66300 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124591 Unique aggregates announced from the ARIN address blocks: 67699 ARIN Region origin ASes present in the Internet Routing Table: 9326 ARIN Prefixes per ASN: 13.36 ARIN Region origin ASes announcing only one prefix: 3871 ARIN Region transit ASes present in the Internet Routing Table: 883 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2194 Number of ARIN addresses announced to Internet: 1028179977 Equivalent to 61 /8s, 72 /16s and 200 /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: 50915 Total RIPE prefixes after maximum aggregation: 27453 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52359 Unique aggregates announced from the RIPE address blocks: 38274 RIPE Region origin ASes present in the Internet Routing Table: 4668 RIPE Prefixes per ASN: 11.22 RIPE Region origin ASes announcing only one prefix: 1961 RIPE Region transit ASes present in the Internet Routing Table: 697 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1911 Number of RIPE addresses announced to Internet: 287641936 Equivalent to 17 /8s, 37 /16s and 17 /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: 56692 Total LACNIC prefixes after maximum aggregation: 16723 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55011 Unique aggregates announced from the LACNIC address blocks: 24934 LACNIC Region origin ASes present in the Internet Routing Table: 4593 LACNIC Prefixes per ASN: 11.98 LACNIC Region origin ASes announcing only one prefix: 1660 LACNIC Region transit ASes present in the Internet Routing Table: 924 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: 3577 Number of LACNIC addresses announced to Internet: 108994368 Equivalent to 6 /8s, 127 /16s and 31 /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: 9404 Total AfriNIC prefixes after maximum aggregation: 2397 AfriNIC Deaggregation factor: 3.92 Prefixes being announced from the AfriNIC address blocks: 12638 Unique aggregates announced from the AfriNIC address blocks: 4798 AfriNIC Region origin ASes present in the Internet Routing Table: 282 AfriNIC Prefixes per ASN: 44.82 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 72 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147 Number of AfriNIC addresses announced to Internet: 43386112 Equivalent to 2 /8s, 150 /16s and 5 /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 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 17561 557 36 179 LCS-AS-AP LARUS Limited, HK 45102 536 884 140 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 13656 40958 5252 AMAZON-02, US 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2847 216 1735 USDA-1, US 36352 2562 210 1141 AS-COLOCROSSING, US 367 2490 3101 1168 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1773 22856 1322 ATT-INTERNET4, US 209 1657 4889 270 CENTURYLINK-US-LEGACY-QWEST, 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 1173 91 956 AKAMAI-ASN1, NL 3257 1042 2082 806 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 841 1301 130 SAUDINETSTC-AS, SA 8452 838 1841 16 TE-AS TE-AS, EG 212238 658 47 582 CDNEXT, GB 8376 574 52 23 Jordan Data Communications, JO 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 7479 2014 903 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1022 2487 55 TIM SA, BR 18881 891 1127 31 TELEFONICA BRASIL S.A, BR 11172 725 124 69 Alestra, S. de R.L. de C.V., MX 27651 649 92 46 ENTEL CHILE S.A., CL 28006 647 77 297 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 29571 1067 100 72 ORANGE-COTE-IVOIRE, CI 24835 831 424 77 RAYA-AS, EG 37069 600 1112 11 MOBINIL, EG 36914 573 82 3 KENET-AS, KE 24863 570 389 22 LINKdotNET-AS, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 484 518 29 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 36992 379 615 252 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 13656 40958 5252 AMAZON-02, US 9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7479 2014 903 UNINET, MX 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2847 216 1735 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2562 210 1141 AS-COLOCROSSING, US 367 2490 3101 1168 DNIC-ASBLK-00306-00371, US 11830 1987 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 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou 8151 7479 6576 UNINET, MX 22773 3335 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2590 2402 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp 36352 2562 1421 AS-COLOCROSSING, 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /10:31 /11:51 /12:159 /13:214 /14:584 /15:1108 /16:7718 /17:3494 /18:4237 /19:7769 /20:12896 /21:16161 /22:27976 /23:29333 /24:166161 /25:64 /26:81 /27:37 /28:16 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4015 7479 UNINET, MX 22773 2489 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2341 13656 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1024 1343 BRSPD-PUBLIC, US 36352 1024 2562 AS-COLOCROSSING, US 10620 994 1712 Telmex Colombia S.A., CO 209 962 1657 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) ---------------------------------------------- 1:36 2:432 3:847 4:5 5:800 6:149 7:5 8:652 11:171 12:974 13:400 14:116 15:308 16:247 17:3 18:889 20:188 21:4 22:188 23:2654 24:686 27:43 29:19 31:525 32:18 33:1 34:10 35:180 36:2318 37:713 38:2563 39:553 40:78 41:1003 42:21 43:229 44:30 45:4317 46:1029 47:108 49:26 50:361 51:388 52:1382 54:318 55:1108 56:11 57:24 58:16 59:35 60:33 61:65 62:567 63:781 64:1937 65:1135 66:1601 67:1091 68:387 69:1272 70:455 71:191 72:714 74:959 75:321 76:243 77:504 78:368 79:237 80:307 81:371 82:710 83:233 84:350 85:473 86:245 87:220 88:302 89:719 90:106 91:990 92:689 93:485 94:1051 95:676 96:285 97:54 98:506 99:194 100:42 101:26 102:381 103:1316 104:1700 105:199 106:40 107:1532 108:517 109:443 110:40 111:1940 112:618 113:35 114:56 115:29 116:63 117:1077 118:69 119:82 120:1419 121:50 122:64 123:131 124:66 125:25 126:1 128:525 129:396 130:669 131:1020 132:551 133:212 134:476 135:127 136:673 137:537 138:1029 139:444 140:721 141:370 142:1024 143:802 144:446 145:126 146:686 147:517 148:986 149:748 150:181 151:813 152:626 153:146 154:1338 155:913 156:996 157:396 158:565 159:737 160:827 161:655 162:1088 163:439 164:728 165:572 166:809 167:705 168:1567 169:163 170:1764 171:108 172:1338 173:809 174:361 175:87 176:793 177:1109 178:622 179:874 180:41 181:2271 182:28 183:1049 184:459 185:3473 186:2834 187:1713 188:835 189:2014 190:6032 191:538 192:5270 193:1876 194:1262 195:961 196:704 197:1075 198:2744 199:5023 200:4724 201:3763 202:1015 203:710 204:2219 205:1844 206:1583 207:1618 208:1508 209:2025 210:366 211:461 212:1018 213:789 214:936 215:35 216:2583 217:449 218:548 219:28 220:38 221:449 222:29 223:1038 End of report