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 07 Mar, 2026 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: 1053851 Prefixes after maximum aggregation (per Origin AS): 398334 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 510041 Number of IPv4 prefixes with a valid ROA: 629285 Number of IPv4 prefixes with an invalid ROA: 21 Number of IPv4 prefixes with no ROA: 424545 Total ASes present in the Internet Routing Table: 78183 Prefixes per ASN: 13.48 Origin-only ASes present in the Internet Routing Table: 66869 Origin ASes announcing only one prefix: 27255 Transit ASes present in the Internet Routing Table: 11314 Transit-only ASes present in the Internet Routing Table: 577 Paths with bogon ASNs present in the IPv4 Routing Table: 46 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 250 Max AS path prepend of ASN ( 17210) 245 Prefixes from unregistered ASNs in the Routing Table: 1102 Number of instances of unregistered ASNs: 1133 Number of 32-bit ASNs allocated by the RIRs: 48973 Number of 32-bit ASNs visible in the Routing Table: 40089 Prefixes from 32-bit ASNs in the Routing Table: 226159 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 322 Number of addresses announced to Internet: 3117672484 Equivalent to 185 /8s, 211 /16s and 232 /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: 340492 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 292944 Total APNIC prefixes after maximum aggregation: 82900 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 280429 Unique aggregates announced from the APNIC address blocks: 107440 APNIC Region origin ASes present in the Internet Routing Table: 15193 APNIC Prefixes per ASN: 18.46 APNIC Region origin ASes announcing only one prefix: 4639 APNIC Region transit ASes present in the Internet Routing Table: 2051 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10699 Number of APNIC addresses announced to Internet: 757241152 Equivalent to 45 /8s, 34 /16s and 149 /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: 306080 Total ARIN prefixes after maximum aggregation: 136414 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 304564 Unique aggregates announced from the ARIN address blocks: 146711 ARIN Region origin ASes present in the Internet Routing Table: 19420 ARIN Prefixes per ASN: 15.68 ARIN Region origin ASes announcing only one prefix: 7097 ARIN Region transit ASes present in the Internet Routing Table: 2006 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 250 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5507 Number of ARIN addresses announced to Internet: 1352719360 Equivalent to 80 /8s, 160 /16s and 220 /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: 286986 Total RIPE prefixes after maximum aggregation: 140972 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 289469 Unique aggregates announced from the RIPE address blocks: 186587 RIPE Region origin ASes present in the Internet Routing Table: 29304 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12142 RIPE Region transit ASes present in the Internet Routing Table: 4093 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13135 Number of RIPE addresses announced to Internet: 733603968 Equivalent to 43 /8s, 185 /16s and 232 /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: 128998 Total LACNIC prefixes after maximum aggregation: 30383 LACNIC Deaggregation factor: 4.25 Prefixes being announced from the LACNIC address blocks: 124626 Unique aggregates announced from the LACNIC address blocks: 49621 LACNIC Region origin ASes present in the Internet Routing Table: 11360 LACNIC Prefixes per ASN: 10.97 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2576 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9369 Number of LACNIC addresses announced to Internet: 170908000 Equivalent to 10 /8s, 47 /16s and 217 /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: 37741 Total AfriNIC prefixes after maximum aggregation: 6966 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 54440 Unique aggregates announced from the AfriNIC address blocks: 19392 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 27.02 AfriNIC Region origin ASes announcing only one prefix: 717 AfriNIC Region transit ASes present in the Internet Routing Table: 393 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103039488 Equivalent to 6 /8s, 36 /16s and 66 /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 13917 9093 161 CHINAMOBILE-CN China Mobile Communication 7545 5978 830 530 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4840 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4822 547 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4556 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4420 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4047 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3657 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3613 908 229 CMNET-JIANGSU-AP China Mobile communicati 24560 2990 864 509 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 14474 41237 5575 AMAZON-02 - Amazon.com, Inc., US 174 5133 8764 847 COGENT-174 - Cogent Communications, LLC, 22773 4780 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4643 308 1019 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 396982 3297 4856 483 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 16625 2756 1206 2121 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2703 222 892 AS-COLOCROSSING - HostPapa, 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 7229 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3862 3393 115 AKAMAI-ASN1, NL 9009 3822 355 2247 M247, RO 12389 3180 2320 876 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2663 192 1950 CDNEXT, GB 34984 2460 365 574 TELLCOM-AS, TR 8452 1701 1852 17 TE-AS TE-AS, EG 203020 1609 243 786 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12780 3302 592 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2044 648 34 RAYA-AS, EG 36992 1847 1532 340 ETISALAT-MISR, EG 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 555 46 165 Africa-on-Cloud-AS, ZA 36914 553 82 3 KENET-AS, 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 14474 41237 5575 AMAZON-02 - Amazon.com, Inc., US 9808 13917 9093 161 CHINAMOBILE-CN China Mobile Communication 8151 12780 3302 592 UNINET, MX 12479 7229 1711 149 UNI2-AS, ES 7545 5978 830 530 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5133 8764 847 COGENT-174 - Cogent Communications, LLC, 39891 4969 306 72 ALJAWWALSTC-AS, SA 4538 4840 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4822 547 333 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 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 13917 13756 CHINAMOBILE-CN China Mobile Communications Grou 8151 12780 12188 UNINET, MX 12479 7229 7080 UNI2-AS, ES 7545 5978 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4840 4764 ERX-CERNET-BKB China Education and Research Net 18403 4556 4532 FPT-AS-AP FPT Telecom Company, VN 9498 4822 4489 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4420 4367 VNPT-AS-VN VNPT Corp, VN 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 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 33491 COMCAST-33491 - Comcast 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL - GUAMCELL Communications, US 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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: 11164 INTERNET2-I2PX - Internet2, US 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/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 /10:40 /11:95 /12:299 /13:586 /14:1206 /15:2123 /16:13808 /17:8491 /18:14188 /19:26190 /20:47206 /21:53515 /22:115066 /23:109485 /24:660795 /25:74 /26:83 /27:114 /28:40 /29:65 /30:10 /31:3 /32:339 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6945 12780 UNINET, MX 12479 6163 7229 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3503 4643 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3049 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2588 14474 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2663 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2571 2:1601 3:1003 4:7 5:5184 6:194 7:6 8:1534 9:27 11:172 12:1196 13:654 14:2733 15:457 16:177 17:402 18:920 20:612 21:4 22:188 23:8219 24:2656 25:2 27:2848 29:19 31:3406 32:34 34:91 35:295 36:4669 37:4487 38:11179 39:1270 40:241 41:4632 42:2075 43:3109 44:443 45:20104 46:4970 47:422 48:86 49:2241 50:2075 51:600 52:1297 54:279 55:1116 56:11 57:327 58:2584 59:1478 60:1184 61:3374 62:3159 63:1769 64:6234 65:2120 66:6028 67:3260 68:1502 69:4234 70:1038 71:621 72:3068 74:2986 75:1498 76:592 77:2842 78:1916 79:1810 80:2360 81:2246 82:3993 83:1461 84:2049 85:3828 86:1108 87:2425 88:1357 89:4697 90:813 91:8451 92:2854 93:3020 94:4403 95:4606 96:1451 97:313 98:951 99:797 100:67 101:1627 102:4672 103:32855 104:5411 105:1045 106:944 107:2850 108:1210 109:4286 110:2302 111:4172 112:3182 113:2097 114:2211 115:2363 116:2222 117:3472 118:3076 119:2191 120:2748 121:1602 122:3021 123:2455 124:1844 125:3039 126:125 128:1673 129:963 130:1614 131:2448 132:788 133:477 134:1646 135:570 136:1604 137:1368 138:3192 139:1715 140:1814 141:1589 142:2515 143:2149 144:1738 145:637 146:2210 147:2162 148:2791 149:3084 150:1340 151:2684 152:2290 153:1024 154:9846 155:2308 156:4426 157:2289 158:1506 159:2769 160:3818 161:1958 162:4018 163:2407 164:2038 165:2630 166:1305 167:2253 168:4031 169:890 170:5602 171:1128 172:4377 173:3453 174:885 175:1402 176:3829 177:4955 178:4357 179:2362 180:3126 181:4578 182:4017 183:2858 184:2015 185:21845 186:5938 187:4973 188:4583 189:4581 190:9889 191:1588 192:11492 193:9591 194:7929 195:5817 196:3331 197:3339 198:6155 199:6103 200:8241 201:6431 202:11186 203:10895 204:4736 205:3716 206:4563 207:3900 208:4406 209:5382 210:5184 211:2874 212:5051 213:4114 214:1052 215:46 216:7263 217:3550 218:1986 219:653 220:2337 221:1334 222:1432 223:3374 End of report