IPv4 R&E Routing Table Report 23:00 GMT Tue 12 May, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1044146 Prefixes after maximum aggregation (per Origin AS): 401197 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517094 Number of IPv4 prefixes with a valid ROA: 639530 Number of IPv4 prefixes with an invalid ROA: 489 Number of IPv4 prefixes with no ROA: 404127 Total ASes present in the Internet Routing Table: 78376 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67196 Origin ASes announcing only one prefix: 27394 Transit ASes present in the Internet Routing Table: 11180 Transit-only ASes present in the Internet Routing Table: 589 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1029 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 49733 Number of 32-bit ASNs visible in the Routing Table: 40561 Prefixes from 32-bit ASNs in the Routing Table: 230132 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 424 Number of addresses announced to Internet: 3103044352 Equivalent to 184 /8s, 244 /16s and 179 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341290 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285418 Total APNIC prefixes after maximum aggregation: 82917 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271674 Unique aggregates announced from the APNIC address blocks: 107863 APNIC Region origin ASes present in the Internet Routing Table: 15166 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4605 APNIC Region transit ASes present in the Internet Routing Table: 2044 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10766 Number of APNIC addresses announced to Internet: 747660032 Equivalent to 44 /8s, 144 /16s and 99 /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: 301714 Total ARIN prefixes after maximum aggregation: 136353 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301175 Unique aggregates announced from the ARIN address blocks: 147646 ARIN Region origin ASes present in the Internet Routing Table: 19408 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7125 ARIN Region transit ASes present in the Internet Routing Table: 1893 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5570 Number of ARIN addresses announced to Internet: 1347622912 Equivalent to 80 /8s, 83 /16s and 24 /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, 393216-404380 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: 290310 Total RIPE prefixes after maximum aggregation: 143502 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293365 Unique aggregates announced from the RIPE address blocks: 191485 RIPE Region origin ASes present in the Internet Routing Table: 29476 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12213 RIPE Region transit ASes present in the Internet Routing Table: 4083 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13401 Number of RIPE addresses announced to Internet: 733657344 Equivalent to 43 /8s, 186 /16s and 185 /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: 128650 Total LACNIC prefixes after maximum aggregation: 30813 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123024 Unique aggregates announced from the LACNIC address blocks: 50260 LACNIC Region origin ASes present in the Internet Routing Table: 11387 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2721 LACNIC Region transit ASes present in the Internet Routing Table: 2581 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9439 Number of LACNIC addresses announced to Internet: 169661440 Equivalent to 10 /8s, 28 /16s and 212 /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: 37025 Total AfriNIC prefixes after maximum aggregation: 6990 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 54484 Unique aggregates announced from the AfriNIC address blocks: 19472 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 27.00 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1385 Number of AfriNIC addresses announced to Internet: 104247808 Equivalent to 6 /8s, 54 /16s and 178 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13889 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4064 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3720 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3534 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3461 218 604 LCS-AS-AP LARUS Limited, HK 45899 3367 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2765 762 733 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14926 41322 5697 AMAZON-02 - Amazon.com, Inc., US 22773 4788 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4613 306 1081 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3337 4865 506 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2633 2558 895 WINDSTREAM - Windstream Communications LL 30036 2611 359 456 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7156 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3906 358 2311 M247, RO 20940 3800 3389 109 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2779 203 2050 CDNEXT, GB 34984 2492 367 583 TELLCOM-AS, TR 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12720 3251 636 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2391 504 353 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1270 389 16 LINKdotNET-AS, EG 36935 1234 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 328608 605 56 163 Africa-on-Cloud-AS, ZA 20011 589 155 220 NTT-DATA-Inc, ZA 15399 552 57 57 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14926 41322 5697 AMAZON-02 - Amazon.com, Inc., US 9808 13889 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12720 3251 636 UNINET, MX 12479 7156 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4788 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4613 306 1081 CABLEONE - CABLE ONE, INC., US 18403 4557 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13889 13768 CHINAMOBILE-CN China Mobile Communications Grou 8151 12720 12084 UNINET, MX 12479 7156 7007 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4935 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 4531 FPT-AS-AP FPT Telecom Company, VN 22773 4788 4423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4064 4036 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 5511 OPENTRANSIT, FR 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:39 /11:95 /12:297 /13:581 /14:1187 /15:2098 /16:13571 /17:8243 /18:13273 /19:25396 /20:45665 /21:52284 /22:113216 /23:107674 /24:660497 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6945 12720 UNINET, MX 12479 6095 7156 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3488 4613 CABLEONE - CABLE ONE, INC., US 22773 3058 4788 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2699 14926 AMAZON-02 - Amazon.com, Inc., US 30036 2264 2611 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2494 2:2033 3:1000 4:5 5:5188 6:200 7:6 8:1471 9:59 11:172 12:1157 13:702 14:2704 15:465 16:208 17:441 18:916 20:591 21:4 22:188 23:8313 24:2772 25:2 27:2806 28:1 29:19 31:3559 32:36 34:91 35:284 36:4782 37:4433 38:9681 39:1296 40:438 41:4563 42:2170 43:3172 44:449 45:19861 46:4880 47:438 48:129 49:2347 50:2010 51:704 52:1324 54:286 55:1020 56:11 57:322 58:2363 59:1381 60:1175 61:3183 62:3127 63:1686 64:6383 65:2150 66:6102 67:3267 68:1503 69:4226 70:1061 71:607 72:3186 74:3056 75:1501 76:602 77:2943 78:2044 79:1795 80:2349 81:2237 82:4165 83:1455 84:2149 85:3833 86:1096 87:2482 88:1336 89:4776 90:810 91:8463 92:2786 93:3032 94:4404 95:4739 96:1443 97:309 98:945 99:836 100:70 101:1628 102:4544 103:32991 104:5373 105:856 106:899 107:2951 108:1269 109:4246 110:2291 111:4121 112:3177 113:1979 114:2381 115:2304 116:2156 117:3476 118:3044 119:2064 120:2725 121:1543 122:3006 123:2286 124:1709 125:3033 126:126 128:1570 129:965 130:1656 131:2410 132:884 133:485 134:1692 135:611 136:1478 137:1357 138:3394 139:1618 140:1769 141:1744 142:2566 143:2055 144:1784 145:639 146:2186 147:2251 148:2804 149:3136 150:1383 151:2914 152:2562 153:1551 154:9640 155:2305 156:5058 157:2397 158:1581 159:2873 160:3828 161:1968 162:4070 163:2565 164:2448 165:2680 166:1278 167:2314 168:4060 169:862 170:5620 171:1139 172:4770 173:3453 174:891 175:1369 176:3952 177:4845 178:4398 179:2346 180:3178 181:4570 182:4035 183:2837 184:2005 185:21903 186:6129 187:4973 188:4589 189:4518 190:9869 191:1676 192:11486 193:9634 194:7876 195:5828 196:3357 197:3325 198:6118 199:6058 200:8123 201:6393 202:10674 203:10654 204:4780 205:3670 206:4397 207:3820 208:4348 209:5402 210:4738 211:2691 212:5087 213:4123 214:1038 215:47 216:7292 217:3608 218:1708 219:415 220:2188 221:1346 222:934 223:3446 End of report