IPv4 R&E Routing Table Report 20:15 GMT Sun 16 Mar, 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: 266524 Prefixes after maximum aggregation (per Origin AS): 116015 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 139368 Number of IPv4 prefixes with a valid ROA: 120185 Number of IPv4 prefixes with an invalid ROA: 22 Number of IPv4 prefixes with no ROA: 146317 Total ASes present in the Internet Routing Table: 20456 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 17604 Origin ASes announcing only one prefix: 7828 Transit ASes present in the Internet Routing Table: 2852 Transit-only ASes present in the Internet Routing Table: 721 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 296 Number of instances of unregistered ASNs: 297 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 8007 Prefixes from 32-bit ASNs in the Routing Table: 31207 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 129 Number of addresses announced to Internet: 1565642109 Equivalent to 93 /8s, 81 /16s and 205 /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: 85091 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31982 Total APNIC prefixes after maximum aggregation: 7590 APNIC Deaggregation factor: 4.21 Prefixes being announced from the APNIC address blocks: 30722 Unique aggregates announced from the APNIC address blocks: 8181 APNIC Region origin ASes present in the Internet Routing Table: 1197 APNIC Prefixes per ASN: 25.67 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 211 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: 544 Number of APNIC addresses announced to Internet: 169452908 Equivalent to 10 /8s, 25 /16s and 165 /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: 125282 Total ARIN prefixes after maximum aggregation: 64336 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 122961 Unique aggregates announced from the ARIN address blocks: 66363 ARIN Region origin ASes present in the Internet Routing Table: 9329 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3894 ARIN Region transit ASes present in the Internet Routing Table: 874 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: 2157 Number of ARIN addresses announced to Internet: 964715009 Equivalent to 57 /8s, 128 /16s and 98 /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: 47463 Total RIPE prefixes after maximum aggregation: 25952 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 49334 Unique aggregates announced from the RIPE address blocks: 36297 RIPE Region origin ASes present in the Internet Routing Table: 4536 RIPE Prefixes per ASN: 10.88 RIPE Region origin ASes announcing only one prefix: 1882 RIPE Region transit ASes present in the Internet Routing Table: 679 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1824 Number of RIPE addresses announced to Internet: 288119248 Equivalent to 17 /8s, 44 /16s and 89 /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: 51299 Total LACNIC prefixes after maximum aggregation: 15580 LACNIC Deaggregation factor: 3.29 Prefixes being announced from the LACNIC address blocks: 49981 Unique aggregates announced from the LACNIC address blocks: 23939 LACNIC Region origin ASes present in the Internet Routing Table: 4273 LACNIC Prefixes per ASN: 11.70 LACNIC Region origin ASes announcing only one prefix: 1468 LACNIC Region transit ASes present in the Internet Routing Table: 868 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: 3340 Number of LACNIC addresses announced to Internet: 100682560 Equivalent to 6 /8s, 0 /16s and 75 /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: 10202 Total AfriNIC prefixes after maximum aggregation: 2342 AfriNIC Deaggregation factor: 4.36 Prefixes being announced from the AfriNIC address blocks: 13397 Unique aggregates announced from the AfriNIC address blocks: 4468 AfriNIC Region origin ASes present in the Internet Routing Table: 271 AfriNIC Prefixes per ASN: 49.44 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 142 Number of AfriNIC addresses announced to Internet: 42617856 Equivalent to 2 /8s, 138 /16s and 76 /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 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1571 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1502 192 53 CMNET-HUNAN-AP China Mobile communication 24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 640 2170 465 SINET-AS Research Organization of Informa 17561 558 36 225 LCS-AS-AP LARUS Limited, HK 24445 503 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 476 779 140 ALIBABA-CN-NET Alibaba US Technology Co., 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 12906 39642 3963 AMAZON-02, US 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2482 183 1506 USDA-1, US 367 2452 2913 1186 DNIC-ASBLK-00306-00371, US 36352 2283 192 1038 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1800 3546 465 CELLCO-PART, US 209 1670 4890 278 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 1256 99 1015 AKAMAI-ASN1, NL 3215 926 4894 282 France Telecom - Orange, FR 34984 836 82 457 TELLCOM-AS, TR 3257 780 2067 684 GTT-BACKBONE GTT, US 25019 699 1290 134 SAUDINETSTC-AS, SA 203214 645 49 357 HULUMTELE, IQ 8452 602 1842 17 TE-AS TE-AS, EG 8376 572 53 22 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 7225 2008 993 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1734 257 1227 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2503 53 TIM SA, BR 18881 870 1127 31 TELEFONICA BRASIL S.A, BR 28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 TELEFONICA BRASIL S.A, BR 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 1420 389 16 LINKdotNET-AS, EG 29571 1054 94 224 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 863 509 44 RAYA-AS, EG 36935 694 520 41 Vodafone-, EG 36992 604 1229 126 ETISALAT-MISR, EG 36914 543 82 3 KENET-AS, KE 37069 455 1030 15 MOBINIL, EG 36903 417 195 306 MT-MPLS, MA 2018 373 318 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 12906 39642 3963 AMAZON-02, US 9808 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 7225 2008 993 UNINET, MX 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2482 183 1506 USDA-1, US 367 2452 2913 1186 DNIC-ASBLK-00306-00371, US 36352 2283 192 1038 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11830 1993 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 10138 10051 CHINAMOBILE-CN China Mobile Communications Grou 8151 7225 6232 UNINET, MX 22773 3374 3199 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1877 1660 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1502 1449 CMNET-HUNAN-AP China Mobile communications corp 24863 1420 1404 LINKdotNET-AS, EG 209 1670 1392 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 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 53966 UNALLOCATED 8.39.98.0/24 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 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 23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA 23.158.216.0/24 Transit: 22427 GNET-AS, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 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 /10:29 /11:43 /12:151 /13:222 /14:577 /15:1104 /16:7626 /17:3369 /18:4209 /19:7721 /20:12458 /21:15516 /22:28189 /23:28023 /24:157046 /25:60 /26:75 /27:36 /28:16 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3786 7225 UNINET, MX 22773 2516 3374 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 12906 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 978 1734 Telmex Colombia S.A., CO 209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US 19901 921 1159 BRSPD-PUBLIC, US 36352 905 2283 AS-COLOCROSSING, US 11776 881 1877 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:62 2:461 3:589 4:5 5:782 6:149 7:5 8:640 11:171 12:999 13:290 14:140 15:300 16:241 17:5 18:887 20:173 21:4 22:188 23:2532 24:965 27:22 29:19 31:400 32:18 34:10 35:131 36:1229 37:1054 38:2311 39:543 40:54 41:934 42:211 43:205 44:25 45:4083 46:910 47:84 49:55 50:349 51:382 52:1384 54:276 55:1054 56:9 57:19 58:4 59:26 60:16 61:65 62:524 63:778 64:1885 65:1087 66:1623 67:974 68:416 69:1226 70:442 71:216 72:830 74:979 75:428 76:246 77:438 78:339 79:270 80:266 81:335 82:644 83:240 84:359 85:540 86:232 87:253 88:258 89:792 90:101 91:945 92:642 93:366 94:754 95:620 96:268 97:66 98:468 99:161 100:36 101:24 102:321 103:1251 104:1451 105:115 106:63 107:1484 108:541 109:369 110:57 111:1915 112:462 113:37 114:64 115:18 116:51 117:1047 118:163 119:131 120:1169 121:42 122:110 123:144 124:57 125:23 126:1 128:480 129:276 130:657 131:935 132:566 133:213 134:535 135:115 136:567 137:508 138:1029 139:428 140:709 141:421 142:970 143:692 144:414 145:75 146:692 147:502 148:858 149:708 150:373 151:673 152:521 153:126 154:1534 155:774 156:1369 157:377 158:501 159:664 160:832 161:728 162:1006 163:342 164:736 165:779 166:708 167:649 168:1477 169:144 170:1681 171:122 172:1394 173:801 174:255 175:66 176:701 177:1125 178:498 179:808 180:50 181:1903 182:46 183:883 184:511 185:3403 186:2480 187:1436 188:752 189:1740 190:5168 191:493 192:5096 193:1741 194:1212 195:893 196:667 197:1517 198:2677 199:4857 200:4078 201:3410 202:988 203:712 204:2129 205:1982 206:1574 207:1514 208:1352 209:1958 210:308 211:425 212:936 213:779 214:1012 215:36 216:2513 217:435 218:525 219:19 220:24 221:301 222:31 223:739 End of report