This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 01 Nov, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1032937 Prefixes after maximum aggregation (per Origin AS): 392775 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 500200 Number of IPv4 prefixes with a valid ROA: 595034 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 437883 Total ASes present in the Internet Routing Table: 77595 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 66412 Origin ASes announcing only one prefix: 27064 Transit ASes present in the Internet Routing Table: 11183 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 976 Number of instances of unregistered ASNs: 1005 Number of 32-bit ASNs allocated by the RIRs: 47869 Number of 32-bit ASNs visible in the Routing Table: 39258 Prefixes from 32-bit ASNs in the Routing Table: 218082 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 295 Number of addresses announced to Internet: 3118611521 Equivalent to 185 /8s, 226 /16s and 60 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 337141 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282934 Total APNIC prefixes after maximum aggregation: 81510 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 272967 Unique aggregates announced from the APNIC address blocks: 106610 APNIC Region origin ASes present in the Internet Routing Table: 14933 APNIC Prefixes per ASN: 18.28 APNIC Region origin ASes announcing only one prefix: 4539 APNIC Region transit ASes present in the Internet Routing Table: 2014 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10432 Number of APNIC addresses announced to Internet: 757175872 Equivalent to 45 /8s, 33 /16s and 150 /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: 300529 Total ARIN prefixes after maximum aggregation: 133601 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 300689 Unique aggregates announced from the ARIN address blocks: 145002 ARIN Region origin ASes present in the Internet Routing Table: 19379 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1997 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5399 Number of ARIN addresses announced to Internet: 1353267200 Equivalent to 80 /8s, 169 /16s and 56 /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: 285309 Total RIPE prefixes after maximum aggregation: 139644 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 285604 Unique aggregates announced from the RIPE address blocks: 182142 RIPE Region origin ASes present in the Internet Routing Table: 29121 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 4051 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12808 Number of RIPE addresses announced to Internet: 733836289 Equivalent to 43 /8s, 189 /16s and 116 /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: 127076 Total LACNIC prefixes after maximum aggregation: 30446 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123087 Unique aggregates announced from the LACNIC address blocks: 49484 LACNIC Region origin ASes present in the Internet Routing Table: 11316 LACNIC Prefixes per ASN: 10.88 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2549 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9294 Number of LACNIC addresses announced to Internet: 170683136 Equivalent to 10 /8s, 44 /16s and 107 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36113 Total AfriNIC prefixes after maximum aggregation: 6906 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 50295 Unique aggregates announced from the AfriNIC address blocks: 16686 AfriNIC Region origin ASes present in the Internet Routing Table: 1959 AfriNIC Prefixes per ASN: 25.67 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1325 Number of AfriNIC addresses announced to Internet: 103463680 Equivalent to 6 /8s, 42 /16s and 187 /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 13529 8889 173 CHINAMOBILE-CN China Mobile Communication 7545 6104 833 582 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4499 537 312 BBIL-AP BHARTI Airtel Ltd., IN 45899 4400 1874 54 VNPT-AS-VN VNPT Corp, VN 18403 4394 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4012 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3386 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2936 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14441 41087 5379 AMAZON-02, US 11492 4776 317 802 CABLEONE, US 22773 4634 3091 398 ASN-CXA-ALL-CCI-22773-RDC, US 174 4411 8767 839 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3688 1320 82 SHAW, CA 396982 3278 4825 469 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2881 1228 2149 AKAMAI-AS, US 36352 2855 231 915 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7299 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4020 378 2289 M247, RO 20940 3922 3395 137 AKAMAI-ASN1, NL 12389 3181 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2526 177 1819 CDNEXT, GB 34984 2417 363 575 TELLCOM-AS, TR 5384 2385 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 1709 205 1003 HOSTROYALE, IN 8452 1665 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12496 3301 569 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2506 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1291 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1278 371 23 Telefonica del Peru S.A.A., PE 22884 1059 67 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1025 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1963 630 32 RAYA-AS, EG 36992 1678 1509 399 ETISALAT-MISR, EG 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1191 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 82 3 KENET-AS, KE 15399 544 57 55 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14441 41087 5379 AMAZON-02, US 9808 13529 8889 173 CHINAMOBILE-CN China Mobile Communication 8151 12496 3301 569 UNINET, MX 12479 7299 1711 149 UNI2-AS, ES 7545 6104 833 582 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4776 317 802 CABLEONE, US 22773 4634 3091 398 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4499 537 312 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13529 13356 CHINAMOBILE-CN China Mobile Communications Grou 8151 12496 11927 UNINET, MX 12479 7299 7150 UNI2-AS, ES 7545 6104 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4804 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4394 4370 FPT-AS-AP FPT Telecom Company, VN 45899 4400 4346 VNPT-AS-VN VNPT Corp, VN 22773 4634 4236 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4499 4187 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:94 /12:299 /13:584 /14:1207 /15:2149 /16:13937 /17:8451 /18:14290 /19:25531 /20:46346 /21:53490 /22:114850 /23:108147 /24:642731 /25:151 /26:110 /27:114 /28:20 /29:66 /30:12 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6693 12496 UNINET, MX 12479 6260 7299 UNI2-AS, ES 11492 3589 4776 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3476 3688 SHAW, CA 22773 2985 4634 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2437 14441 AMAZON-02, US 30036 2306 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2504 2:1614 3:968 4:12 5:4998 6:171 7:6 8:1542 9:6 11:172 12:1240 13:549 14:2720 15:401 16:303 17:390 18:912 20:597 21:4 22:188 23:8053 24:2612 25:2 27:2867 29:19 31:3451 32:35 33:1 34:85 35:279 36:4521 37:4593 38:10477 39:1178 40:473 41:4381 42:1963 43:2914 44:402 45:19474 46:5288 47:388 49:2171 50:2054 51:596 52:1629 54:357 55:1093 56:11 57:296 58:2398 59:1398 60:1221 61:3179 62:3117 63:1771 64:5906 65:2131 66:5930 67:3246 68:1490 69:4218 70:1034 71:638 72:2956 74:2897 75:1516 76:601 77:2769 78:1909 79:1797 80:2295 81:2131 82:3584 83:1515 84:2001 85:3594 86:1206 87:2412 88:1332 89:4578 90:815 91:8457 92:2878 93:3011 94:4296 95:4564 96:1511 97:312 98:947 99:761 100:71 101:1508 102:4379 103:32687 104:5469 105:1040 106:928 107:2794 108:1200 109:4262 110:2302 111:3923 112:2789 113:1946 114:2111 115:2353 116:2186 117:3111 118:3099 119:2131 120:2407 121:1580 122:2963 123:2373 124:1816 125:2955 126:124 128:1622 129:981 130:1463 131:2248 132:777 133:461 134:1629 135:365 136:1495 137:1286 138:2897 139:1667 140:1701 141:1585 142:2178 143:2130 144:1334 145:632 146:2198 147:2123 148:2780 149:2883 150:1295 151:2674 152:2274 153:651 154:8230 155:2216 156:3223 157:1997 158:1384 159:2635 160:3776 161:2012 162:3997 163:2331 164:1956 165:2564 166:1322 167:2131 168:3866 169:773 170:5479 171:1072 172:4496 173:3436 174:906 175:1379 176:3773 177:4862 178:4336 179:2359 180:2834 181:4336 182:3811 183:2595 184:2102 185:21789 186:5473 187:4772 188:4419 189:4508 190:9786 191:1629 192:11491 193:9522 194:7990 195:5759 196:3218 197:3333 198:6154 199:6090 200:8279 201:6422 202:11060 203:10925 204:4607 205:3644 206:4464 207:3753 208:4295 209:5394 210:5115 211:2901 212:4939 213:3982 214:1036 215:53 216:7182 217:3526 218:1647 219:620 220:2207 221:1270 222:1016 223:3154 End of report