IPv4 R&E Routing Table Report 20:15 GMT Thu 26 Jun, 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: 272596 Prefixes after maximum aggregation (per Origin AS): 119356 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 141327 Number of IPv4 prefixes with a valid ROA: 125050 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147504 Total ASes present in the Internet Routing Table: 20577 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 17738 Origin ASes announcing only one prefix: 7962 Transit ASes present in the Internet Routing Table: 2839 Transit-only ASes present in the Internet Routing Table: 716 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: 378 Number of instances of unregistered ASNs: 410 Number of 32-bit ASNs allocated by the RIRs: 46652 Number of 32-bit ASNs visible in the Routing Table: 8107 Prefixes from 32-bit ASNs in the Routing Table: 32344 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: 109 Number of addresses announced to Internet: 1564830725 Equivalent to 93 /8s, 69 /16s and 108 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 86981 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33454 Total APNIC prefixes after maximum aggregation: 7494 APNIC Deaggregation factor: 4.46 Prefixes being announced from the APNIC address blocks: 31990 Unique aggregates announced from the APNIC address blocks: 7670 APNIC Region origin ASes present in the Internet Routing Table: 1204 APNIC Prefixes per ASN: 26.57 APNIC Region origin ASes announcing only one prefix: 471 APNIC Region transit ASes present in the Internet Routing Table: 190 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 569 Number of APNIC addresses announced to Internet: 165170284 Equivalent to 9 /8s, 216 /16s and 76 /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: 126124 Total ARIN prefixes after maximum aggregation: 66289 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124178 Unique aggregates announced from the ARIN address blocks: 67263 ARIN Region origin ASes present in the Internet Routing Table: 9319 ARIN Prefixes per ASN: 13.33 ARIN Region origin ASes announcing only one prefix: 3879 ARIN Region transit ASes present in the Internet Routing Table: 879 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: 2201 Number of ARIN addresses announced to Internet: 961633289 Equivalent to 57 /8s, 81 /16s and 92 /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: 50266 Total RIPE prefixes after maximum aggregation: 27238 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52051 Unique aggregates announced from the RIPE address blocks: 38083 RIPE Region origin ASes present in the Internet Routing Table: 4687 RIPE Prefixes per ASN: 11.11 RIPE Region origin ASes announcing only one prefix: 1963 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1933 Number of RIPE addresses announced to Internet: 286253136 Equivalent to 17 /8s, 15 /16s and 224 /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: 51748 Total LACNIC prefixes after maximum aggregation: 15786 LACNIC Deaggregation factor: 3.28 Prefixes being announced from the LACNIC address blocks: 50236 Unique aggregates announced from the LACNIC address blocks: 23239 LACNIC Region origin ASes present in the Internet Routing Table: 4227 LACNIC Prefixes per ASN: 11.88 LACNIC Region origin ASes announcing only one prefix: 1538 LACNIC Region transit ASes present in the Internet Routing Table: 844 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: 3248 Number of LACNIC addresses announced to Internet: 105168704 Equivalent to 6 /8s, 68 /16s and 191 /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: 10626 Total AfriNIC prefixes after maximum aggregation: 2283 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 14032 Unique aggregates announced from the AfriNIC address blocks: 4964 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 48.22 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.3 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 46493440 Equivalent to 2 /8s, 197 /16s and 111 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2225 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 871 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2170 465 SINET-AS Research Organization of Informa 17561 559 36 250 LCS-AS-AP LARUS Limited, HK 45102 537 887 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 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 13601 40953 5216 AMAZON-02, US 22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2827 215 1717 USDA-1, US 36352 2569 210 1136 AS-COLOCROSSING, US 367 2429 3162 1159 DNIC-ASBLK-00306-00371, US 6167 1914 3955 513 CELLCO-PART, US 11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US 7018 1831 22861 1370 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 1188 92 965 AKAMAI-ASN1, NL 3257 1045 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 34984 679 74 415 TELLCOM-AS, TR 212238 661 48 585 CDNEXT, GB 8376 575 53 24 Jordan Data Communications, JO 51167 568 113 251 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 6276 1715 921 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1835 262 1278 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 26615 1052 2487 55 TIM SA, BR 18881 879 1127 31 TELEFONICA BRASIL S.A, BR 11172 679 122 56 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 647 91 44 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 24863 1450 389 16 LINKdotNET-AS, EG 24835 1061 475 106 RAYA-AS, EG 29571 1052 100 72 ORANGE-COTE-IVOIRE, CI 36935 617 520 50 Vodafone-, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 552 1192 125 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 37069 451 1046 15 MOBINIL, 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 13601 40953 5216 AMAZON-02, US 9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 6276 1715 921 UNINET, MX 22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2827 215 1717 USDA-1, US 36352 2569 210 1136 AS-COLOCROSSING, US 367 2429 3162 1159 DNIC-ASBLK-00306-00371, US 56046 2225 811 188 CMNET-JIANGSU-AP China Mobile communicati 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 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou 8151 6276 5355 UNINET, MX 22773 3348 3184 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2225 2037 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1687 ATLANTICBB-JOHNSTOWN, US 56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1450 1434 LINKdotNET-AS, EG 36352 2569 1433 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 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 41.77.208.0/22 Origin: 37475 RESERVED, ZZ 41.77.208.0/22 Transit: 15964 CAMNET-AS, CM 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 /8:13 /9:10 /10:30 /11:42 /12:150 /13:209 /14:577 /15:1100 /16:7599 /17:3465 /18:4241 /19:7587 /20:12701 /21:15532 /22:28295 /23:28648 /24:162172 /25:63 /26:81 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3330 6276 UNINET, MX 22773 2502 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2341 13601 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 10620 1086 1835 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1031 2569 AS-COLOCROSSING, US 19901 1011 1315 BRSPD-PUBLIC, US 209 963 1657 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:18 2:451 3:819 4:5 5:808 6:148 7:5 8:657 11:171 12:968 13:387 14:115 15:308 16:247 17:4 18:889 20:188 21:4 22:188 23:2620 24:733 27:23 29:19 31:538 32:18 33:1 34:10 35:180 36:1978 37:855 38:2436 39:550 40:68 41:990 42:21 43:232 44:28 45:4176 46:990 47:96 49:21 50:363 51:387 52:1385 54:318 55:1103 56:11 57:22 58:16 59:38 60:32 61:85 62:548 63:751 64:1924 65:1104 66:1592 67:1075 68:408 69:1198 70:466 71:194 72:665 74:933 75:318 76:239 77:512 78:398 79:252 80:291 81:369 82:716 83:208 84:341 85:498 86:248 87:217 88:304 89:724 90:105 91:954 92:655 93:489 94:926 95:682 96:288 97:59 98:526 99:178 100:42 101:19 102:350 103:1267 104:1692 105:213 106:41 107:1561 108:550 109:456 110:40 111:1926 112:539 113:36 114:59 115:28 116:52 117:1051 118:66 119:82 120:1384 121:51 122:77 123:128 124:62 125:25 128:513 129:398 130:679 131:1033 132:568 133:213 134:459 135:128 136:602 137:508 138:947 139:425 140:710 141:362 142:1010 143:769 144:431 145:127 146:700 147:511 148:996 149:787 150:205 151:766 152:624 153:142 154:1388 155:864 156:1157 157:401 158:552 159:745 160:826 161:645 162:1055 163:431 164:724 165:568 166:793 167:687 168:1481 169:160 170:1665 171:109 172:1348 173:808 174:363 175:78 176:778 177:1107 178:606 179:816 180:41 181:2129 182:28 183:1026 184:460 185:3616 186:2502 187:1580 188:844 189:1773 190:5263 191:480 192:5227 193:1907 194:1244 195:934 196:747 197:1187 198:2746 199:4985 200:4436 201:3567 202:944 203:721 204:2193 205:1798 206:1571 207:1572 208:1505 209:1984 210:331 211:443 212:1001 213:772 214:926 215:34 216:2594 217:446 218:546 219:19 220:34 221:406 222:24 223:943 End of report