IPv4 R&E Routing Table Report 20:15 GMT Sat 17 May, 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: 263913 Prefixes after maximum aggregation (per Origin AS): 115730 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135129 Number of IPv4 prefixes with a valid ROA: 118782 Number of IPv4 prefixes with an invalid ROA: 36 Number of IPv4 prefixes with no ROA: 145095 Total ASes present in the Internet Routing Table: 19771 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 17091 Origin ASes announcing only one prefix: 7758 Transit ASes present in the Internet Routing Table: 2680 Transit-only ASes present in the Internet Routing Table: 724 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 313 Number of instances of unregistered ASNs: 317 Number of 32-bit ASNs allocated by the RIRs: 46439 Number of 32-bit ASNs visible in the Routing Table: 7437 Prefixes from 32-bit ASNs in the Routing Table: 27728 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 116 Number of addresses announced to Internet: 1554082013 Equivalent to 92 /8s, 161 /16s and 104 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83378 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32334 Total APNIC prefixes after maximum aggregation: 7509 APNIC Deaggregation factor: 4.31 Prefixes being announced from the APNIC address blocks: 30796 Unique aggregates announced from the APNIC address blocks: 7603 APNIC Region origin ASes present in the Internet Routing Table: 1200 APNIC Prefixes per ASN: 25.66 APNIC Region origin ASes announcing only one prefix: 473 APNIC Region transit ASes present in the Internet Routing Table: 204 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: 547 Number of APNIC addresses announced to Internet: 167584364 Equivalent to 9 /8s, 253 /16s and 34 /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: 125806 Total ARIN prefixes after maximum aggregation: 65508 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122970 Unique aggregates announced from the ARIN address blocks: 65987 ARIN Region origin ASes present in the Internet Routing Table: 9344 ARIN Prefixes per ASN: 13.16 ARIN Region origin ASes announcing only one prefix: 3901 ARIN Region transit ASes present in the Internet Routing Table: 870 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: 2186 Number of ARIN addresses announced to Internet: 960895713 Equivalent to 57 /8s, 70 /16s and 26 /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: 49568 Total RIPE prefixes after maximum aggregation: 26822 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51222 Unique aggregates announced from the RIPE address blocks: 37364 RIPE Region origin ASes present in the Internet Routing Table: 4614 RIPE Prefixes per ASN: 11.10 RIPE Region origin ASes announcing only one prefix: 1925 RIPE Region transit ASes present in the Internet Routing Table: 694 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1882 Number of RIPE addresses announced to Internet: 281565008 Equivalent to 16 /8s, 200 /16s and 87 /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: 44808 Total LACNIC prefixes after maximum aggregation: 13341 LACNIC Deaggregation factor: 3.36 Prefixes being announced from the LACNIC address blocks: 43867 Unique aggregates announced from the LACNIC address blocks: 19888 LACNIC Region origin ASes present in the Internet Routing Table: 3478 LACNIC Prefixes per ASN: 12.61 LACNIC Region origin ASes announcing only one prefix: 1350 LACNIC Region transit ASes present in the Internet Routing Table: 701 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2669 Number of LACNIC addresses announced to Internet: 97276992 Equivalent to 5 /8s, 204 /16s and 84 /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: 11084 Total AfriNIC prefixes after maximum aggregation: 2338 AfriNIC Deaggregation factor: 4.74 Prefixes being announced from the AfriNIC address blocks: 14942 Unique aggregates announced from the AfriNIC address blocks: 4173 AfriNIC Region origin ASes present in the Internet Routing Table: 284 AfriNIC Prefixes per ASN: 52.61 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 153 Number of AfriNIC addresses announced to Internet: 46708992 Equivalent to 2 /8s, 200 /16s and 185 /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 10804 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1772 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 847 54 398 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 601 2154 464 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 515 848 138 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 13415 40825 5032 AMAZON-02, US 22773 3340 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2726 207 1675 USDA-1, US 36352 2543 209 1136 AS-COLOCROSSING, US 367 2447 2909 1177 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1860 3758 488 CELLCO-PART, US 209 1663 4890 273 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 1177 92 966 AKAMAI-ASN1, NL 3257 931 2076 748 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 813 1301 129 SAUDINETSTC-AS, SA 8452 773 1842 17 TE-AS TE-AS, EG 34984 688 76 411 TELLCOM-AS, TR 212238 624 44 550 CDNEXT, GB 8376 569 53 21 Jordan Data Communications, JO 58224 569 318 402 TCI, IR 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 7465 2012 998 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1027 2503 52 TIM SA, BR 18881 881 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 646 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 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 1495 389 16 LINKdotNET-AS, EG 29571 1182 100 73 ORANGE-COTE-IVOIRE, CI 24835 1037 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 585 125 166 Vodafone-, EG 36914 539 82 3 KENET-AS, KE 37069 504 1046 15 MOBINIL, EG 36903 457 205 331 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 13415 40825 5032 AMAZON-02, US 9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7465 2012 998 UNINET, MX 22773 3340 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3243 54815 2494 DNIC-AS-00749, US 4155 2726 207 1675 USDA-1, US 36352 2543 209 1136 AS-COLOCROSSING, US 367 2447 2909 1177 DNIC-ASBLK-00306-00371, US 7018 2093 22887 1542 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 10804 10709 CHINAMOBILE-CN China Mobile Communications Grou 8151 7465 6467 UNINET, MX 22773 3340 3176 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co 56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1495 1479 LINKdotNET-AS, EG 56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /11:41 /12:150 /13:209 /14:573 /15:1100 /16:7637 /17:3454 /18:4208 /19:7677 /20:12384 /21:15309 /22:27460 /23:27796 /24:155640 /25:62 /26:81 /27:35 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3994 7465 UNINET, MX 22773 2494 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2331 13415 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2543 AS-COLOCROSSING, US 19901 978 1264 BRSPD-PUBLIC, US 209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:474 3:758 4:6 5:800 6:155 7:5 8:682 11:171 12:997 13:363 14:115 15:301 16:246 17:6 18:883 20:177 21:4 22:188 23:2594 24:638 27:21 29:19 31:507 32:9 33:1 34:10 35:133 36:1714 37:927 38:2015 39:554 40:62 41:941 42:21 43:203 44:36 45:3596 46:961 47:92 49:18 50:362 51:386 52:1389 54:310 55:1093 56:11 57:18 58:17 59:15 60:16 61:74 62:561 63:752 64:2002 65:1087 66:1580 67:960 68:391 69:1128 70:415 71:202 72:733 74:949 75:427 76:248 77:470 78:369 79:286 80:302 81:368 82:743 83:232 84:343 85:459 86:233 87:231 88:293 89:864 90:104 91:932 92:616 93:485 94:918 95:670 96:288 97:59 98:452 99:179 100:35 101:19 102:386 103:1202 104:1629 105:217 106:16 107:1524 108:546 109:385 110:35 111:1960 112:460 113:39 114:40 115:22 116:62 117:1047 118:30 119:124 120:1220 121:45 122:58 123:76 124:57 125:25 128:495 129:393 130:687 131:894 132:563 133:212 134:494 135:113 136:610 137:515 138:855 139:430 140:701 141:454 142:1023 143:680 144:435 145:136 146:681 147:490 148:864 149:788 150:351 151:643 152:479 153:129 154:1709 155:843 156:1425 157:372 158:550 159:723 160:932 161:668 162:977 163:359 164:720 165:769 166:788 167:629 168:1109 169:153 170:1624 171:125 172:1367 173:835 174:252 175:63 176:685 177:828 178:491 179:689 180:49 181:1825 182:29 183:930 184:444 185:3518 186:2042 187:1399 188:809 189:1762 190:4237 191:449 192:5177 193:1891 194:1235 195:960 196:712 197:1565 198:2732 199:4907 200:3594 201:3275 202:993 203:726 204:2144 205:1957 206:1542 207:1517 208:1436 209:1938 210:290 211:436 212:1067 213:846 214:981 215:42 216:2525 217:427 218:520 219:19 220:28 221:339 222:31 223:792 End of report