Routing Table Report 00:00 GMT Sat 31 Mar, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 407409
Prefixes after maximum aggregation: 172997
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195943
Total ASes present in the Internet Routing Table: 40592
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32967
Origin ASes announcing only one prefix: 15508
Transit ASes present in the Internet Routing Table: 5457
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5959
Unregistered ASNs in the Routing Table: 295
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2168
Prefixes from 32-bit ASNs in the Routing Table: 5316
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1286
Number of addresses announced to Internet: 2532110677
Equivalent to 150 /8s, 236 /16s and 241 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171608
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96952
Total APNIC prefixes after maximum aggregation: 31032
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93447
Unique aggregates announced from the APNIC address blocks: 39207
APNIC Region origin ASes present in the Internet Routing Table: 4667
APNIC Prefixes per ASN: 20.02
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 742
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 642392320
Equivalent to 38 /8s, 74 /16s and 33 /24s
Percentage of available APNIC address space announced: 81.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 152040
Total ARIN prefixes after maximum aggregation: 78049
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123211
Unique aggregates announced from the ARIN address blocks: 49995
ARIN Region origin ASes present in the Internet Routing Table: 14974
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5704
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805174528
Equivalent to 47 /8s, 253 /16s and 253 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 102883
Total RIPE prefixes after maximum aggregation: 53401
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93290
Unique aggregates announced from the RIPE address blocks: 57249
RIPE Region origin ASes present in the Internet Routing Table: 16356
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7952
RIPE Region transit ASes present in the Internet Routing Table: 2638
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1471
Number of RIPE addresses announced to Internet: 502356876
Equivalent to 29 /8s, 241 /16s and 91 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 40806
Total LACNIC prefixes after maximum aggregation: 8134
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 40331
Unique aggregates announced from the LACNIC address blocks: 19711
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.64
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 300
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 505
Number of LACNIC addresses announced to Internet: 98761224
Equivalent to 5 /8s, 226 /16s and 250 /24s
Percentage of available LACNIC address space announced: 65.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8929
Total AfriNIC prefixes after maximum aggregation: 2129
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6992
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31524352
Equivalent to 1 /8s, 225 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 47.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1919 11101 676 Korea Telecom (KIX)
17974 1789 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1653 301 89 TPG Internet Pty Ltd
4755 1573 386 158 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1173 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 931 129 153 Reliance Infocom Ltd Internet
9498 928 260 65 BHARTI Airtel Ltd.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3379 3807 196 bellsouth.net, inc.
7029 3375 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1885 680 128 AppliedTheory Corporation
20115 1633 1559 624 Charter Communications
4323 1588 1074 376 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1415 256 745 Mediacom Communications Corp
7018 1279 13742 829 AT&T WorldNet Services
11492 1184 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1777 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1065 853 198 KPNQwest Backbone AS
31148 677 37 9 FreeNet ISP
34984 673 188 174 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 635 205 497 Akamai Technologies European
8551 597 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1817 330 131 TVCABLE BOGOTA
28573 1744 1105 60 Types of queries are: POCs, o
8151 1527 3000 327 Uninet S.A. de C.V.
6503 1358 418 66 AVANTEL, S.A.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 700 28 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 569 242 101 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1294 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3379 3807 196 bellsouth.net, inc.
7029 3375 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1919 11101 676 Korea Telecom (KIX)
1785 1885 680 128 AppliedTheory Corporation
10620 1817 330 131 TVCABLE BOGOTA
17974 1789 503 63 PT TELEKOMUNIKASI INDONESIA
8402 1777 544 16 Corbina telecom
28573 1744 1105 60 Types of queries are: POCs, o
7545 1653 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3375 3220 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1777 1761 Corbina telecom
1785 1885 1757 AppliedTheory Corporation
17974 1789 1726 PT TELEKOMUNIKASI INDONESIA
10620 1817 1686 TVCABLE BOGOTA
28573 1744 1684 Types of queries are: POCs, o
7545 1653 1564 TPG Internet Pty Ltd
22773 1552 1441 Cox Communications, Inc.
4755 1573 1415 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:458 /14:838 /15:1515 /16:12337 /17:6549 /18:10870
/19:21117 /20:29915 /21:30130 /22:40713 /23:38046 /24:212931
/25:70 /26:76 /27:110 /28:276 /29:101 /30:500
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3036 3375 Windstream Communications Inc
6389 2095 3379 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1754 1777 Corbina telecom
10620 1707 1817 TVCABLE BOGOTA
30036 1359 1415 Mediacom Communications Corp
11492 1147 1184 Cable One
6503 1127 1358 AVANTEL, S.A.
8452 1102 1294 TEDATA
1785 1064 1885 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:537 2:757 4:18 6:3 8:395 12:1991
13:1 14:608 15:12 16:3 17:7 20:8
23:160 24:1762 27:1256 31:964 32:120 33:2
34:2 36:8 37:316 38:794 39:4 40:120
41:3096 42:130 44:3 46:1462 47:3 49:348
50:538 52:13 54:6 55:11 56:3 57:40
58:970 59:495 60:278 61:1214 62:982 63:2014
64:4216 65:2275 66:4523 67:2060 68:1330 69:3298
70:956 71:465 72:1847 73:1 74:2648 75:506
76:329 77:960 78:1011 79:509 80:1215 81:903
82:679 83:550 84:515 85:1209 86:416 87:905
88:345 89:1633 90:297 91:4674 92:518 93:1377
94:1469 95:1163 96:380 97:316 98:844 99:37
100:6 101:171 103:936 106:66 107:180 108:220
109:1263 110:766 111:901 112:446 113:594 114:657
115:794 116:920 117:724 118:920 119:1210 120:353
121:720 122:1666 123:1107 124:1364 125:1264 128:560
129:195 130:258 131:596 132:173 133:21 134:244
135:63 136:212 137:176 138:351 139:157 140:495
141:244 142:387 143:400 144:512 145:66 146:486
147:253 148:784 149:298 150:156 151:176 152:460
153:172 154:7 155:445 156:215 157:381 158:176
159:525 160:343 161:248 162:343 163:190 164:555
165:406 166:562 167:464 168:820 169:148 170:844
171:124 172:4 173:1740 174:586 175:449 176:455
177:621 178:1312 180:1245 181:74 182:783 183:279
184:451 185:1 186:2149 187:1007 188:1158 189:1688
190:5537 192:6030 193:5637 194:4654 195:3638 196:1290
197:123 198:3630 199:4497 200:5822 201:1904 202:8474
203:8616 204:4350 205:2478 206:2774 207:2791 208:4077
209:3634 210:2787 211:1482 212:2066 213:1917 214:875
215:109 216:5093 217:1531 218:548 219:339 220:1236
221:558 222:331 223:329
End of report
