IPv4 R&E Routing Table Report 20:15 GMT Tue 27 Jan, 2026 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: 287263 Prefixes after maximum aggregation (per Origin AS): 118444 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 148748 Number of IPv4 prefixes with a valid ROA: 145340 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 141720 Total ASes present in the Internet Routing Table: 20609 Prefixes per ASN: 13.94 Origin-only ASes present in the Internet Routing Table: 17746 Origin ASes announcing only one prefix: 7991 Transit ASes present in the Internet Routing Table: 2863 Transit-only ASes present in the Internet Routing Table: 728 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 240 Number of instances of unregistered ASNs: 269 Number of 32-bit ASNs allocated by the RIRs: 48508 Number of 32-bit ASNs visible in the Routing Table: 8423 Prefixes from 32-bit ASNs in the Routing Table: 34419 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 92 Number of addresses announced to Internet: 1607920837 Equivalent to 95 /8s, 214 /16s and 236 /24s Percentage of available address space announced: 43.4 Percentage of allocated address space announced: 43.4 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: 92286 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43424 Total APNIC prefixes after maximum aggregation: 8972 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 40129 Unique aggregates announced from the APNIC address blocks: 9188 APNIC Region origin ASes present in the Internet Routing Table: 1326 APNIC Prefixes per ASN: 30.26 APNIC Region origin ASes announcing only one prefix: 561 APNIC Region transit ASes present in the Internet Routing Table: 226 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 647 Number of APNIC addresses announced to Internet: 170907500 Equivalent to 10 /8s, 47 /16s and 215 /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: 126590 Total ARIN prefixes after maximum aggregation: 64687 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 124053 Unique aggregates announced from the ARIN address blocks: 70480 ARIN Region origin ASes present in the Internet Routing Table: 9108 ARIN Prefixes per ASN: 13.62 ARIN Region origin ASes announcing only one prefix: 3785 ARIN Region transit ASes present in the Internet Routing Table: 849 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2189 Number of ARIN addresses announced to Internet: 1008630057 Equivalent to 60 /8s, 30 /16s and 121 /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: 50585 Total RIPE prefixes after maximum aggregation: 25836 RIPE Deaggregation factor: 1.96 Prefixes being announced from the RIPE address blocks: 53349 Unique aggregates announced from the RIPE address blocks: 37279 RIPE Region origin ASes present in the Internet Routing Table: 4491 RIPE Prefixes per ASN: 11.88 RIPE Region origin ASes announcing only one prefix: 1912 RIPE Region transit ASes present in the Internet Routing Table: 683 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1886 Number of RIPE addresses announced to Internet: 275913424 Equivalent to 16 /8s, 114 /16s and 26 /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: 55921 Total LACNIC prefixes after maximum aggregation: 16446 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 53787 Unique aggregates announced from the LACNIC address blocks: 24332 LACNIC Region origin ASes present in the Internet Routing Table: 4549 LACNIC Prefixes per ASN: 11.82 LACNIC Region origin ASes announcing only one prefix: 1619 LACNIC Region transit ASes present in the Internet Routing Table: 903 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: 3540 Number of LACNIC addresses announced to Internet: 106416992 Equivalent to 6 /8s, 87 /16s and 203 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 10503 Total AfriNIC prefixes after maximum aggregation: 2313 AfriNIC Deaggregation factor: 4.54 Prefixes being announced from the AfriNIC address blocks: 15853 Unique aggregates announced from the AfriNIC address blocks: 7387 AfriNIC Region origin ASes present in the Internet Routing Table: 297 AfriNIC Prefixes per ASN: 53.38 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 45912064 Equivalent to 2 /8s, 188 /16s and 144 /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 13360 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2191 138 497 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1057 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 900 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 771 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 673 1167 154 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 14026 38808 5442 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1905 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1708 1495 785 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1484 730 696 BRIGHTSPEED - Brightspeed, US 20057 1444 1017 112 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 1252 96 1019 AKAMAI-ASN1, NL 25019 1148 1335 138 SAUDINETSTC-AS, SA 34984 984 151 739 TELLCOM-AS, TR 8452 902 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 700 49 615 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 552 53 25 Jordan Data Communications, JO 5511 531 98 450 OPENTRANSIT, FR 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 7289 1938 784 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1402 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1256 371 22 INTEGRATEL PERU S.A.A., PE 26615 1011 2486 56 TIM SA, BR 18881 913 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 24835 1451 463 90 RAYA-AS, EG 37069 1095 1100 11 MOBINIL, EG 24863 947 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 564 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 385 870 245 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 14026 38808 5442 AMAZON-02 - Amazon.com, Inc., US 9808 13360 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7289 1938 784 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 17561 2191 138 497 LCS-AS-AP LARUS Limited, HK 11830 1992 369 65 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 13360 13240 CHINAMOBILE-CN China Mobile Communications Grou 8151 7289 6505 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3357 3162 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2191 1694 LCS-AS-AP LARUS Limited, HK 11776 1905 1692 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1709 1659 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /11:52 /12:159 /13:212 /14:565 /15:1047 /16:7451 /17:3416 /18:4095 /19:7534 /20:13131 /21:16107 /22:28167 /23:29687 /24:175353 /25:61 /26:80 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4003 7289 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2475 14026 AMAZON-02 - Amazon.com, Inc., US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 36352 1094 2581 AS-COLOCROSSING - HostPapa, US 11664 1087 1402 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1484 BRIGHTSPEED - Brightspeed, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:72 2:469 3:974 4:5 5:1142 6:172 7:5 8:637 9:5 11:172 12:877 13:564 14:177 15:363 16:154 17:3 18:909 20:204 21:4 22:188 23:2882 24:662 27:47 29:19 31:515 32:13 34:7 35:182 36:3328 37:637 38:2309 39:837 40:251 41:1104 42:23 43:205 44:29 45:4453 46:930 47:166 48:20 49:21 50:496 51:522 52:1080 54:231 55:1121 56:11 57:33 58:44 59:42 60:74 61:58 62:612 63:708 64:2165 65:979 66:2412 67:1086 68:488 69:1206 70:439 71:155 72:704 74:983 75:294 76:240 77:401 78:575 79:241 80:349 81:415 82:822 83:202 84:343 85:643 86:236 87:208 88:277 89:576 90:104 91:920 92:688 93:895 94:975 95:1325 96:285 97:45 98:390 99:270 100:22 101:22 102:510 103:1289 104:1694 105:133 106:3 107:1704 108:514 109:362 110:104 111:2761 112:1303 113:33 114:34 115:54 116:57 117:1520 118:70 119:90 120:2008 121:36 122:78 123:126 124:69 125:49 128:625 129:371 130:713 131:1176 132:555 133:218 134:500 135:136 136:737 137:612 138:1022 139:448 140:759 141:429 142:1465 143:874 144:485 145:192 146:688 147:467 148:1009 149:740 150:226 151:896 152:739 153:274 154:2358 155:1038 156:2035 157:484 158:654 159:835 160:631 161:719 162:982 163:420 164:734 165:619 166:564 167:710 168:1487 169:205 170:1826 171:102 172:1589 173:780 174:271 175:100 176:654 177:949 178:652 179:919 180:45 181:2495 182:23 183:1685 184:436 185:3368 186:3422 187:1701 188:1057 189:1993 190:5926 191:524 192:5091 193:1689 194:1106 195:935 196:678 197:1055 198:2668 199:2455 200:4368 201:3568 202:1104 203:823 204:2190 205:1799 206:1486 207:1696 208:1682 209:1954 210:443 211:517 212:1073 213:858 214:980 215:43 216:2438 217:556 218:649 219:29 220:82 221:536 222:37 223:1668 End of report