IPv4 R&E Routing Table Report 20:15 GMT Thu 22 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: 264821 Prefixes after maximum aggregation (per Origin AS): 116275 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135725 Number of IPv4 prefixes with a valid ROA: 119438 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 145342 Total ASes present in the Internet Routing Table: 19828 Prefixes per ASN: 13.36 Origin-only ASes present in the Internet Routing Table: 17148 Origin ASes announcing only one prefix: 7773 Transit ASes present in the Internet Routing Table: 2680 Transit-only ASes present in the Internet Routing Table: 710 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: 314 Number of instances of unregistered ASNs: 318 Number of 32-bit ASNs allocated by the RIRs: 46491 Number of 32-bit ASNs visible in the Routing Table: 7491 Prefixes from 32-bit ASNs in the Routing Table: 28286 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: 115 Number of addresses announced to Internet: 1559187165 Equivalent to 92 /8s, 239 /16s and 78 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83630 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32805 Total APNIC prefixes after maximum aggregation: 7601 APNIC Deaggregation factor: 4.32 Prefixes being announced from the APNIC address blocks: 31236 Unique aggregates announced from the APNIC address blocks: 7739 APNIC Region origin ASes present in the Internet Routing Table: 1227 APNIC Prefixes per ASN: 25.46 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 205 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: 563 Number of APNIC addresses announced to Internet: 167765356 Equivalent to 9 /8s, 255 /16s and 229 /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: 125774 Total ARIN prefixes after maximum aggregation: 65996 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122841 Unique aggregates announced from the ARIN address blocks: 66333 ARIN Region origin ASes present in the Internet Routing Table: 9352 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3899 ARIN Region transit ASes present in the Internet Routing Table: 867 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: 961029601 Equivalent to 57 /8s, 72 /16s and 37 /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: 49778 Total RIPE prefixes after maximum aggregation: 26679 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51495 Unique aggregates announced from the RIPE address blocks: 37333 RIPE Region origin ASes present in the Internet Routing Table: 4614 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1955 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1898 Number of RIPE addresses announced to Internet: 286097232 Equivalent to 17 /8s, 13 /16s and 127 /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: 45201 Total LACNIC prefixes after maximum aggregation: 13416 LACNIC Deaggregation factor: 3.37 Prefixes being announced from the LACNIC address blocks: 44392 Unique aggregates announced from the LACNIC address blocks: 19991 LACNIC Region origin ASes present in the Internet Routing Table: 3512 LACNIC Prefixes per ASN: 12.64 LACNIC Region origin ASes announcing only one prefix: 1332 LACNIC Region transit ASes present in the Internet Routing Table: 714 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: 2684 Number of LACNIC addresses announced to Internet: 97468992 Equivalent to 5 /8s, 207 /16s and 66 /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: 10949 Total AfriNIC prefixes after maximum aggregation: 2370 AfriNIC Deaggregation factor: 4.62 Prefixes being announced from the AfriNIC address blocks: 14742 Unique aggregates announced from the AfriNIC address blocks: 4215 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 51.55 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 152 Number of AfriNIC addresses announced to Internet: 46775296 Equivalent to 2 /8s, 201 /16s and 188 /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 10900 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1849 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1487 192 53 CMNET-HUNAN-AP China Mobile communication 24547 863 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 821 52 385 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 522 852 139 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 13457 40824 5095 AMAZON-02, US 22773 3348 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2738 208 1680 USDA-1, US 36352 2566 210 1130 AS-COLOCROSSING, US 367 2435 2911 1168 DNIC-ASBLK-00306-00371, US 7018 2075 22883 1528 ATT-INTERNET4, US 11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1875 3828 492 CELLCO-PART, US 209 1661 4889 271 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 1179 92 964 AKAMAI-ASN1, NL 3257 929 2076 746 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 689 77 411 TELLCOM-AS, TR 212238 621 44 547 CDNEXT, GB 203214 593 44 384 HULUMTELE, IQ 8376 573 53 21 Jordan Data Communications, JO 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 7443 2005 991 UNINET, MX 11830 1990 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 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1031 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 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 1480 389 16 LINKdotNET-AS, EG 24835 1025 535 35 RAYA-AS, EG 29571 984 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 597 126 167 Vodafone-, EG 36914 547 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 461 207 333 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 13457 40824 5095 AMAZON-02, US 9808 10900 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7443 2005 991 UNINET, MX 22773 3348 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2738 208 1680 USDA-1, US 36352 2566 210 1130 AS-COLOCROSSING, US 367 2435 2911 1168 DNIC-ASBLK-00306-00371, US 7018 2075 22883 1528 ATT-INTERNET4, US 11830 1990 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 10900 10805 CHINAMOBILE-CN China Mobile Communications Grou 8151 7443 6452 UNINET, MX 22773 3348 3182 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1896 1680 ATLANTICBB-JOHNSTOWN, US 56046 1849 1663 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1480 1464 LINKdotNET-AS, EG 36352 2566 1436 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 23.152.48.0/24 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 /10:30 /11:41 /12:150 /13:209 /14:573 /15:1100 /16:7644 /17:3460 /18:4238 /19:7660 /20:12491 /21:15292 /22:27577 /23:28051 /24:156019 /25:66 /26:99 /27:53 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7443 UNINET, MX 22773 2499 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2328 13457 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1044 2566 AS-COLOCROSSING, US 19901 978 1267 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1896 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:20 2:474 3:775 4:5 5:802 6:156 7:5 8:680 11:171 12:996 13:376 14:115 15:301 16:246 17:6 18:888 20:183 21:4 22:188 23:2593 24:641 27:23 29:19 31:525 32:9 33:1 34:10 35:136 36:1773 37:986 38:1894 39:553 40:62 41:969 42:21 43:212 44:36 45:3644 46:963 47:92 49:20 50:366 51:386 52:1390 54:311 55:1096 56:11 57:19 58:16 59:30 60:16 61:73 62:542 63:754 64:1923 65:1092 66:1532 67:951 68:398 69:1105 70:415 71:202 72:733 74:941 75:324 76:249 77:488 78:347 79:235 80:310 81:372 82:718 83:233 84:336 85:428 86:233 87:207 88:291 89:874 90:104 91:934 92:624 93:482 94:955 95:688 96:289 97:60 98:456 99:178 100:35 101:39 102:352 103:1237 104:1623 105:214 106:16 107:1527 108:550 109:400 110:35 111:1966 112:485 113:39 114:40 115:23 116:62 117:1043 118:70 119:132 120:1245 121:44 122:65 123:78 124:58 125:26 128:498 129:393 130:700 131:913 132:558 133:211 134:495 135:113 136:610 137:506 138:862 139:429 140:698 141:459 142:1024 143:677 144:434 145:135 146:674 147:516 148:870 149:761 150:355 151:648 152:492 153:129 154:1701 155:858 156:1346 157:382 158:549 159:734 160:815 161:668 162:988 163:431 164:716 165:783 166:781 167:623 168:1115 169:155 170:1556 171:120 172:1394 173:844 174:252 175:66 176:785 177:909 178:509 179:720 180:46 181:1827 182:29 183:955 184:450 185:3515 186:2085 187:1456 188:836 189:1792 190:4220 191:458 192:5203 193:1877 194:1242 195:938 196:709 197:1567 198:2732 199:4910 200:3633 201:3280 202:1010 203:764 204:2150 205:1949 206:1538 207:1517 208:1427 209:1964 210:297 211:436 212:1020 213:784 214:982 215:42 216:2546 217:426 218:523 219:19 220:28 221:350 222:31 223:802 End of report