IPv4 R&E Routing Table Report 23:00 GMT Tue 20 Oct, 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: 1077516 Prefixes after maximum aggregation (per Origin AS): 415309 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 536277 Number of IPv4 prefixes with a valid ROA: 762802 Number of IPv4 prefixes with an invalid ROA: 423 Number of IPv4 prefixes with no ROA: 314291 Total ASes present in the Internet Routing Table: 79482 Prefixes per ASN: 13.56 Origin-only ASes present in the Internet Routing Table: 68024 Origin ASes announcing only one prefix: 27905 Transit ASes present in the Internet Routing Table: 11458 Transit-only ASes present in the Internet Routing Table: 615 Paths with bogon ASNs present in the IPv4 Routing Table: 31 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: 1109 Number of instances of unregistered ASNs: 1131 Number of 32-bit ASNs allocated by the RIRs: 51765 Number of 32-bit ASNs visible in the Routing Table: 41977 Prefixes from 32-bit ASNs in the Routing Table: 244401 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 564 Number of addresses announced to Internet: 3125825792 Equivalent to 186 /8s, 80 /16s and 81 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 356386 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 290208 Total APNIC prefixes after maximum aggregation: 85273 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 278727 Unique aggregates announced from the APNIC address blocks: 110594 APNIC Region origin ASes present in the Internet Routing Table: 15424 APNIC Prefixes per ASN: 18.07 APNIC Region origin ASes announcing only one prefix: 4756 APNIC Region transit ASes present in the Internet Routing Table: 2093 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11049 Number of APNIC addresses announced to Internet: 748851200 Equivalent to 44 /8s, 162 /16s and 144 /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: 313991 Total ARIN prefixes after maximum aggregation: 140213 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 310817 Unique aggregates announced from the ARIN address blocks: 153160 ARIN Region origin ASes present in the Internet Routing Table: 19530 ARIN Prefixes per ASN: 15.91 ARIN Region origin ASes announcing only one prefix: 7221 ARIN Region transit ASes present in the Internet Routing Table: 1975 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: 5855 Number of ARIN addresses announced to Internet: 1355326464 Equivalent to 80 /8s, 200 /16s and 164 /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: 301449 Total RIPE prefixes after maximum aggregation: 150054 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 308372 Unique aggregates announced from the RIPE address blocks: 202281 RIPE Region origin ASes present in the Internet Routing Table: 29930 RIPE Prefixes per ASN: 10.30 RIPE Region origin ASes announcing only one prefix: 12396 RIPE Region transit ASes present in the Internet Routing Table: 4191 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 54 Number of RIPE region 32-bit ASNs visible in the Routing Table: 14012 Number of RIPE addresses announced to Internet: 750516480 Equivalent to 44 /8s, 187 /16s and 249 /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 196608-219547 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: 132145 Total LACNIC prefixes after maximum aggregation: 31913 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 125758 Unique aggregates announced from the LACNIC address blocks: 51770 LACNIC Region origin ASes present in the Internet Routing Table: 11537 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2762 LACNIC Region transit ASes present in the Internet Routing Table: 2618 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9606 Number of LACNIC addresses announced to Internet: 167385856 Equivalent to 9 /8s, 250 /16s and 27 /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: 38614 Total AfriNIC prefixes after maximum aggregation: 7179 AfriNIC Deaggregation factor: 5.38 Prefixes being announced from the AfriNIC address blocks: 53278 Unique aggregates announced from the AfriNIC address blocks: 17999 AfriNIC Region origin ASes present in the Internet Routing Table: 2091 AfriNIC Prefixes per ASN: 25.48 AfriNIC Region origin ASes announcing only one prefix: 770 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 85 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1455 Number of AfriNIC addresses announced to Internet: 103437056 Equivalent to 6 /8s, 42 /16s and 83 /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 14002 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5108 560 338 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4741 347 24 FPT-VN - FPT Telecom Company, VN 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4096 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3634 887 182 CMNET-Jiangsu-AP - China Mobile communica 7713 3504 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 140292 3293 332 1666 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 45899 3271 1867 104 VNPT-AS-VN - VNPT Corp, VN 24560 2373 538 665 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 17482 42607 5638 AMAZON-02 - Amazon.com, Inc., US 22773 4919 3291 461 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4632 308 1098 CABLEONE - CABLE ONE, INC., US 7155 4335 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3840 1305 75 SHAW - Shaw Communications, CA 396982 3551 5382 604 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3285 244 1153 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2912 2586 911 WINDSTREAM - Windstream Communications LL 31898 2834 1421 1178 ORACLE-BMC-31898 - Oracle Corporation, US 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 6931 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 4976 307 79 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4347 388 2650 M247 - M247 Europe SRL, RO 20940 3816 3388 105 AKAMAI-ASN1 - Akamai International B.V., 212238 3583 259 2739 CDNEXT - Datacamp Limited, GB 12389 3103 2329 866 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2525 155 30 KCELL-AS - Kcell JSC, KZ 34984 2518 370 596 TELLCOM-AS - Superonline Iletisim Hizmetl 25019 1960 1384 141 SAUDINETSTC-AS - Saudi Telecom Company JS 3257 1740 2082 978 GTT-BACKBONE - GTT Communications Inc., U 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 13296 3298 616 AS8151 - UNINET, MX 10620 3398 442 1121 AS10620 - Telmex Colombia S.A., CO 13999 2223 493 326 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1851 369 65 AS11830 - Instituto Costarricense de Elec 11664 1513 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1388 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1268 763 226 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1174 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1103 73 382 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1079 75 54 AS27715 - Locaweb Servicos de Internet S/ 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 1972 481 26 Vodafone Data - Vodafone Data, EG 36992 1943 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1461 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1352 588 110 Office National des Postes et Telecommuni 36935 1295 523 49 Vodafone Data - Vodafone Data, EG 37069 1127 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 806 57 60 Wananchi Group (Kenya) Limited - Wananchi 20011 719 172 287 Dimension Data - Dimension Data, ZA 36873 545 141 39 Airtel Networks Limited - Airtel Networks 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 17482 42607 5638 AMAZON-02 - Amazon.com, Inc., US 9808 14002 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13296 3298 616 AS8151 - UNINET, MX 12479 6931 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5108 560 338 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4976 307 79 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4919 3291 461 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4741 347 24 FPT-VN - FPT Telecom Company, VN 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4632 308 1098 CABLEONE - CABLE ONE, INC., US 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 14002 13867 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13296 12680 AS8151 - UNINET, MX 12479 6931 6782 UNI2-AS - Orange Espagne SA, ES 39891 4976 4897 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5108 4770 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4741 4717 FPT-VN - FPT Telecom Company, VN 22773 4919 4458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4646 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4335 4248 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4096 4072 VIETEL-AS-AP - Viettel Group, VN 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP - NETSTAR 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887 - C 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 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 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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, 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 /11:97 /12:299 /13:588 /14:1191 /15:2130 /16:13701 /17:8236 /18:13240 /19:25499 /20:45487 /21:53478 /22:113982 /23:111104 /24:688415 /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 7449 13296 AS8151 - UNINET, MX 12479 5846 6931 UNI2-AS - Orange Espagne SA, ES 39891 3659 4976 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3603 3840 SHAW - Shaw Communications, CA 11492 3509 4632 CABLEONE - CABLE ONE, INC., US 16509 3389 17482 AMAZON-02 - Amazon.com, Inc., US 7155 3267 4335 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3130 4919 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2233 3398 AS10620 - Telmex Colombia S.A., CO 30036 2185 2531 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2750 2:2906 3:1368 4:6 5:5558 6:219 7:6 8:1324 9:515 11:172 12:1083 13:1386 14:2713 15:488 16:378 17:471 18:1175 20:602 21:4 22:189 23:8623 24:2805 25:2 27:2931 28:7 29:19 31:4007 32:34 34:93 35:307 36:4930 37:4443 38:10599 39:1448 40:456 41:4608 42:2282 43:3552 44:534 45:19925 46:5049 47:476 48:171 49:2469 50:2024 51:1035 52:1456 54:486 55:1153 56:11 57:332 58:2511 59:1372 60:1178 61:3333 62:3204 63:1673 64:6661 65:2271 66:6257 67:3344 68:1360 69:4094 70:1082 71:595 72:3368 74:3149 75:1743 76:599 77:2953 78:2177 79:2049 80:2418 81:2320 82:4440 83:1525 84:2156 85:3925 86:1146 87:2994 88:1380 89:4977 90:788 91:8557 92:2795 93:3072 94:4704 95:4785 96:1455 97:304 98:980 99:1153 100:65 101:1623 102:4745 103:33170 104:5801 105:967 106:970 107:3012 108:1446 109:4046 110:2236 111:4220 112:3227 113:1971 114:2630 115:2327 116:2109 117:3897 118:2996 119:2152 120:2824 121:2027 122:3050 123:2210 124:1730 125:3024 126:175 128:1593 129:1002 130:1767 131:2621 132:947 133:491 134:1841 135:678 136:1579 137:1423 138:3458 139:1833 140:1895 141:1915 142:2737 143:2385 144:1933 145:725 146:2249 147:2449 148:2890 149:3596 150:1543 151:3185 152:2747 153:2239 154:8352 155:2405 156:3692 157:2585 158:1654 159:2992 160:4195 161:2160 162:4265 163:2769 164:2532 165:2818 166:1262 167:2415 168:4301 169:996 170:5602 171:1138 172:4950 173:3477 174:896 175:1439 176:4115 177:5892 178:4642 179:2936 180:3510 181:4770 182:4155 183:2900 184:2206 185:22088 186:6595 187:6237 188:4974 189:5062 190:10028 191:2102 192:11991 193:9648 194:8004 195:6019 196:3515 197:3454 198:6338 199:6182 200:8353 201:6996 202:10680 203:10720 204:4804 205:3733 206:4465 207:3875 208:4342 209:5456 210:4749 211:2730 212:5267 213:4137 214:1036 215:51 216:7302 217:3969 218:1925 219:415 220:2230 221:1471 222:976 223:3677 End of report