IPv4 R&E Routing Table Report 23:05 GMT Sun 26 Mar, 2023 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: 909453 Prefixes after maximum aggregation (per Origin AS): 345904 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447117 Number of IPv4 prefixes with a valid ROA: 381045 Number of IPv4 prefixes with an invalid ROA: 1651 Number of IPv4 prefixes with no ROA: 526757 Total ASes present in the Internet Routing Table: 74098 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63645 Origin ASes announcing only one prefix: 26147 Transit ASes present in the Internet Routing Table: 10453 Transit-only ASes present in the Internet Routing Table: 436 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1099 Number of instances of unregistered ASNs: 1103 Number of 32-bit ASNs allocated by the RIRs: 41531 Number of 32-bit ASNs visible in the Routing Table: 34334 Prefixes from 32-bit ASNs in the Routing Table: 168368 Number of bogon 32-bit ASNs visible in the Routing Table: 67 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 498 Number of addresses announced to Internet: 3061620736 Equivalent to 182 /8s, 124 /16s and 160 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305822 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236012 Total APNIC prefixes after maximum aggregation: 68282 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230692 Unique aggregates announced from the APNIC address blocks: 97875 APNIC Region origin ASes present in the Internet Routing Table: 13293 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3894 APNIC Region transit ASes present in the Internet Routing Table: 1786 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8643 Number of APNIC addresses announced to Internet: 773049856 Equivalent to 46 /8s, 19 /16s and 206 /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, 131072-151865 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: 267182 Total ARIN prefixes after maximum aggregation: 121356 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269417 Unique aggregates announced from the ARIN address blocks: 130309 ARIN Region origin ASes present in the Internet Routing Table: 19017 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6977 ARIN Region transit ASes present in the Internet Routing Table: 1888 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4752 Number of ARIN addresses announced to Internet: 1285282304 Equivalent to 76 /8s, 155 /16s and 218 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 258311 Total RIPE prefixes after maximum aggregation: 121545 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 254527 Unique aggregates announced from the RIPE address blocks: 157263 RIPE Region origin ASes present in the Internet Routing Table: 28278 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12043 RIPE Region transit ASes present in the Internet Routing Table: 3979 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11100 Number of RIPE addresses announced to Internet: 718159616 Equivalent to 42 /8s, 206 /16s and 63 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117349 Total LACNIC prefixes after maximum aggregation: 28142 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116664 Unique aggregates announced from the LACNIC address blocks: 49061 LACNIC Region origin ASes present in the Internet Routing Table: 10963 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2636 LACNIC Region transit ASes present in the Internet Routing Table: 2279 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8765 Number of LACNIC addresses announced to Internet: 176603648 Equivalent to 10 /8s, 134 /16s and 194 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29500 Total AfriNIC prefixes after maximum aggregation: 5794 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37655 Unique aggregates announced from the AfriNIC address blocks: 12210 AfriNIC Region origin ASes present in the Internet Routing Table: 1727 AfriNIC Prefixes per ASN: 21.80 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1074 Number of AfriNIC addresses announced to Internet: 108142592 Equivalent to 6 /8s, 114 /16s and 32 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5753 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3383 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2864 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2309 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2169 439 213 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8136 10767 2892 AMAZON-02, US 11492 4534 300 620 CABLEONE, US 7155 3962 279 45 VIASAT-SP-BACKBONE, US 22773 3617 3062 290 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3150 1585 2333 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2624 3588 357 GOOGLE-CLOUD-PLATFORM, US 7018 2558 24118 1564 ATT-INTERNET4, US 30036 2507 361 483 MEDIACOM-ENTERPRISE-BUSINESS, 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 7166 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4041 3399 163 AKAMAI-ASN1, NL 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2902 2292 913 ROSTELECOM-AS, RU 9009 2666 252 1394 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2135 339 19 UKRTELNET, UA 58224 1850 950 543 TCI, IR 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 11149 3341 579 Uninet S.A. de C.V., MX 10620 3497 506 850 Telmex Colombia S.A., CO 13999 2296 366 610 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1331 2324 245 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1131 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 456 Techtel LMDS Comunicaciones Interactiva 26615 1030 2498 45 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 24863 1568 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1018 67 53 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 526 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 486 73 5 EthioNet-AS, ET 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 8151 11149 3341 579 Uninet S.A. de C.V., MX 9808 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8136 10767 2892 AMAZON-02, US 12479 7166 1705 149 UNI2-AS, ES 7545 5753 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4534 300 620 CABLEONE, US 20940 4041 3399 163 AKAMAI-ASN1, NL 7155 3962 279 45 VIASAT-SP-BACKBONE, US 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9501 9453 CHINAMOBILE-CN China Mobile Communications Grou 12479 7166 7017 UNI2-AS, ES 16509 8136 5244 AMAZON-02, US 7545 5753 5063 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3962 3917 VIASAT-SP-BACKBONE, US 11492 4534 3914 CABLEONE, US 20940 4041 3878 AKAMAI-ASN1, NL 8551 3891 3854 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:575 /14:1196 /15:2073 /16:13438 /17:8185 /18:13724 /19:24855 /20:43068 /21:51055 /22:108882 /23:97224 /24:544700 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6224 7166 UNI2-AS, ES 8151 5139 11149 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3442 4534 CABLEONE, US 8551 3363 3891 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3037 3962 VIASAT-SP-BACKBONE, US 22773 2677 3617 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2507 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2051 3497 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) ---------------------------------------------- 1:1671 2:1222 3:170 4:5 5:4460 6:121 7:6 8:1516 9:1 11:172 12:1578 13:393 14:2306 15:296 16:135 17:367 18:400 20:248 21:4 22:188 23:6136 24:2597 25:6 27:2499 29:19 31:2524 32:99 34:10 35:104 36:1924 37:4641 38:4390 39:807 40:151 41:4009 42:974 43:2304 44:309 45:16468 46:4224 47:369 49:1734 50:1826 51:570 52:1587 54:389 55:763 56:8 57:89 58:1680 59:1077 60:974 61:2460 62:2640 63:1929 64:5660 65:2313 66:4913 67:3012 68:1369 69:4170 70:1251 71:669 72:2969 74:2593 75:1463 76:605 77:2431 78:1846 79:3159 80:2081 81:1733 82:1498 83:1264 84:1517 85:2999 86:745 87:1961 88:1227 89:3597 90:613 91:7679 92:2034 93:2562 94:3578 95:3972 96:1330 97:336 98:1158 99:746 100:73 101:1301 102:2665 103:31119 104:4589 105:483 106:897 107:2560 108:986 109:4398 110:2077 111:3196 112:2049 113:1489 114:1626 115:2017 116:1901 117:2563 118:2283 119:1967 120:1749 121:1048 122:2589 123:2136 124:1577 125:2446 128:1258 129:1056 130:999 131:1997 132:832 133:421 134:1897 135:300 136:860 137:937 138:2557 139:1522 140:1217 141:1476 142:1429 143:1491 144:1164 145:355 146:1931 147:1563 148:2307 149:1940 150:873 151:1153 152:1953 153:488 154:4241 155:1413 156:1671 157:1280 158:1040 159:2267 160:2536 161:1513 162:3533 163:1501 164:1580 165:1695 166:879 167:1736 168:3857 169:930 170:4583 171:880 172:3529 173:2938 174:1017 175:1157 176:3669 177:4612 178:3636 179:2156 180:2429 181:3423 182:3325 183:1934 184:2347 185:20148 186:4691 187:3937 188:4060 189:3564 190:9136 191:1437 192:10918 193:8840 194:7267 195:5139 196:3180 197:2377 198:5885 199:6081 200:7751 201:5861 202:10335 203:10192 204:4616 205:3525 206:3864 207:3393 208:4069 209:4857 210:4176 211:2403 212:4113 213:3527 214:1079 215:60 216:6600 217:2675 218:1270 219:410 220:1756 221:973 222:726 223:2140 End of report