IPv4 R&E Routing Table Report 23:00 GMT Wed 22 Apr, 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: 1041046 Prefixes after maximum aggregation (per Origin AS): 399509 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515232 Number of IPv4 prefixes with a valid ROA: 635004 Number of IPv4 prefixes with an invalid ROA: 460 Number of IPv4 prefixes with no ROA: 405582 Total ASes present in the Internet Routing Table: 78285 Prefixes per ASN: 13.30 Origin-only ASes present in the Internet Routing Table: 67088 Origin ASes announcing only one prefix: 27363 Transit ASes present in the Internet Routing Table: 11197 Transit-only ASes present in the Internet Routing Table: 597 Paths with bogon ASNs present in the IPv4 Routing Table: 39 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: 1073 Number of instances of unregistered ASNs: 1105 Number of 32-bit ASNs allocated by the RIRs: 49436 Number of 32-bit ASNs visible in the Routing Table: 40408 Prefixes from 32-bit ASNs in the Routing Table: 228542 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 488 Number of addresses announced to Internet: 3103371520 Equivalent to 184 /8s, 249 /16s and 177 /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: 339242 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284220 Total APNIC prefixes after maximum aggregation: 82446 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271106 Unique aggregates announced from the APNIC address blocks: 107831 APNIC Region origin ASes present in the Internet Routing Table: 15150 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 4626 APNIC Region transit ASes present in the Internet Routing Table: 2053 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10743 Number of APNIC addresses announced to Internet: 748944896 Equivalent to 44 /8s, 163 /16s and 254 /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: 302874 Total ARIN prefixes after maximum aggregation: 135883 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302290 Unique aggregates announced from the ARIN address blocks: 147240 ARIN Region origin ASes present in the Internet Routing Table: 19397 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1903 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: 5551 Number of ARIN addresses announced to Internet: 1347947008 Equivalent to 80 /8s, 88 /16s and 10 /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: 288099 Total RIPE prefixes after maximum aggregation: 142752 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290801 Unique aggregates announced from the RIPE address blocks: 189966 RIPE Region origin ASes present in the Internet Routing Table: 29412 RIPE Prefixes per ASN: 9.89 RIPE Region origin ASes announcing only one prefix: 12194 RIPE Region transit ASes present in the Internet Routing Table: 4084 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13302 Number of RIPE addresses announced to Internet: 733230336 Equivalent to 43 /8s, 180 /16s and 53 /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: 127693 Total LACNIC prefixes after maximum aggregation: 30814 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122545 Unique aggregates announced from the LACNIC address blocks: 50351 LACNIC Region origin ASes present in the Internet Routing Table: 11362 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2693 LACNIC Region transit ASes present in the Internet Routing Table: 2571 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: 9425 Number of LACNIC addresses announced to Internet: 169774592 Equivalent to 10 /8s, 30 /16s and 142 /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: 37087 Total AfriNIC prefixes after maximum aggregation: 6972 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 53816 Unique aggregates announced from the AfriNIC address blocks: 19463 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.64 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 1387 Number of AfriNIC addresses announced to Internet: 103194368 Equivalent to 6 /8s, 38 /16s and 159 /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 13845 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5905 827 489 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4927 551 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3685 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3490 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3366 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2963 838 598 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2913 183 492 LCS-AS-AP LARUS Limited, HK 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 14782 41291 5649 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4663 309 1048 CABLEONE - CABLE ONE, INC., US 7155 3872 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3725 1305 75 SHAW - Shaw Communications, CA 174 3346 8768 827 COGENT-174 - Cogent Communications, LLC, 396982 3326 4860 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2718 222 902 AS-COLOCROSSING - HostPapa, US 30036 2662 365 344 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 7163 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3831 354 2253 M247, RO 20940 3796 3389 110 AKAMAI-ASN1, NL 12389 3145 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2763 201 2039 CDNEXT, GB 34984 2452 365 575 TELLCOM-AS, TR 8452 1726 1852 14 TE-AS TE-AS, EG 203020 1666 252 832 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 12845 3311 618 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2435 506 343 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1439 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1248 371 22 INTEGRATEL PERU S.A.A., PE 26615 1073 2392 100 TIM SA, BR 22884 1057 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 24835 2024 648 34 RAYA-AS, EG 36992 1858 1533 336 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36935 1244 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 554 57 58 WANANCHI-, KE 36914 553 82 3 KENET-AS, 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 14782 41291 5649 AMAZON-02 - Amazon.com, Inc., US 9808 13845 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12845 3311 618 UNINET, MX 12479 7163 1711 149 UNI2-AS, ES 7545 5905 827 489 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4927 551 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4663 309 1048 CABLEONE - CABLE ONE, INC., US 18403 4545 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 13845 13724 CHINAMOBILE-CN China Mobile Communications Grou 8151 12845 12227 UNINET, MX 12479 7163 7014 UNI2-AS, ES 7545 5905 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4927 4597 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 4519 FPT-AS-AP FPT Telecom Company, VN 22773 4778 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 7155 3872 3787 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 198550 UNALLOCATED 2.26.124.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.26.125.0/24 213702 QWINS-LTD QWINS AS-SET: 198550 UNALLOCATED 2.27.12.0/24 207567 INTEZIONET-AS, GB 198550 UNALLOCATED 2.27.13.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.14.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.15.0/24 213702 QWINS-LTD QWINS AS-SET: 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 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: 174 COGENT-174 - Cogent Communications, LLC, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 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 /13:582 /14:1187 /15:2095 /16:13572 /17:8240 /18:13257 /19:25399 /20:45646 /21:52324 /22:113412 /23:107289 /24:657582 /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 7028 12845 UNINET, MX 12479 6104 7163 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3527 4663 CABLEONE - CABLE ONE, INC., US 6327 3506 3725 SHAW - Shaw Communications, CA 22773 3052 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2826 3872 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2653 14782 AMAZON-02 - Amazon.com, Inc., US 30036 2314 2662 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2495 2:1861 3:1011 4:5 5:5180 6:198 7:6 8:1490 9:39 11:172 12:1189 13:703 14:2694 15:459 16:198 17:424 18:921 20:585 21:4 22:188 23:8150 24:2778 25:2 27:2819 28:1 29:19 31:3446 32:36 34:90 35:284 36:4695 37:4438 38:10148 39:1285 40:424 41:4562 42:2165 43:3130 44:445 45:19782 46:4872 47:437 48:127 49:2346 50:2021 51:665 52:1321 54:288 55:1213 56:11 57:322 58:2361 59:1383 60:1174 61:3154 62:3115 63:1716 64:6331 65:2135 66:6105 67:3260 68:1503 69:4214 70:1062 71:612 72:3204 74:3027 75:1501 76:590 77:2942 78:1989 79:1789 80:2341 81:2235 82:4095 83:1442 84:2131 85:3828 86:1092 87:2392 88:1332 89:4775 90:802 91:8422 92:2804 93:3012 94:4363 95:4714 96:1451 97:314 98:943 99:823 100:70 101:1632 102:4513 103:32976 104:5368 105:860 106:914 107:2885 108:1246 109:4249 110:2287 111:4120 112:3165 113:1968 114:2275 115:2307 116:2165 117:3514 118:2999 119:2083 120:2699 121:1540 122:2992 123:2268 124:1704 125:3012 126:126 128:1563 129:959 130:1633 131:2474 132:845 133:486 134:1677 135:603 136:1582 137:1349 138:3329 139:1618 140:1756 141:1726 142:2537 143:2098 144:1761 145:643 146:2201 147:2231 148:2793 149:3164 150:1382 151:2837 152:2545 153:1345 154:9860 155:2316 156:4470 157:2371 158:1563 159:2865 160:3837 161:1961 162:4041 163:2517 164:2070 165:2669 166:1282 167:2307 168:4000 169:867 170:5575 171:1132 172:4748 173:3475 174:882 175:1367 176:3877 177:4824 178:4356 179:2319 180:3205 181:4553 182:4020 183:2817 184:2028 185:21822 186:5773 187:4967 188:4552 189:4519 190:9821 191:1560 192:11456 193:9640 194:7888 195:5816 196:3356 197:3355 198:6118 199:6069 200:8082 201:6387 202:10665 203:10632 204:4767 205:3670 206:4582 207:3845 208:4371 209:5401 210:4731 211:2685 212:5088 213:4119 214:1041 215:47 216:7284 217:3573 218:1702 219:425 220:2198 221:1340 222:936 223:3429 End of report