Routing Table Report 00:00 GMT Sun 06 Nov, 2011
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: 384311
Prefixes after maximum aggregation: 167947
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187324
Total ASes present in the Internet Routing Table: 39235
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32317
Origin ASes announcing only one prefix: 15491
Transit ASes present in the Internet Routing Table: 5331
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5314
Unregistered ASNs in the Routing Table: 878
Number of 32-bit ASNs allocated by the RIRs: 1930
Number of 32-bit ASNs visible in the Routing Table: 1587
Prefixes from 32-bit ASNs in the Routing Table: 3666
Special use prefixes present in the Routing Table: 85
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2490745378
Equivalent to 148 /8s, 117 /16s and 194 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 160808
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93037
Total APNIC prefixes after maximum aggregation: 30172
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 89476
Unique aggregates announced from the APNIC address blocks: 38321
APNIC Region origin ASes present in the Internet Routing Table: 4585
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1277
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 101
Number of APNIC addresses announced to Internet: 629928960
Equivalent to 37 /8s, 139 /16s and 244 /24s
Percentage of available APNIC address space announced: 79.9
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: 148629
Total ARIN prefixes after maximum aggregation: 76509
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120351
Unique aggregates announced from the ARIN address blocks: 48349
ARIN Region origin ASes present in the Internet Routing Table: 14739
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5633
ARIN Region transit ASes present in the Internet Routing Table: 1558
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804774920
Equivalent to 47 /8s, 247 /16s and 228 /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: 93837
Total RIPE prefixes after maximum aggregation: 51181
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85412
Unique aggregates announced from the RIPE address blocks: 54532
RIPE Region origin ASes present in the Internet Routing Table: 16099
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2553
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1109
Number of RIPE addresses announced to Internet: 491966924
Equivalent to 29 /8s, 82 /16s and 209 /24s
Percentage of available RIPE address space announced: 79.3
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: 36325
Total LACNIC prefixes after maximum aggregation: 7962
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35738
Unique aggregates announced from the LACNIC address blocks: 18557
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 23.21
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 361
Number of LACNIC addresses announced to Internet: 92826888
Equivalent to 5 /8s, 136 /16s and 109 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8603
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6657
Unique aggregates announced from the AfriNIC address blocks: 1999
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27593728
Equivalent to 1 /8s, 165 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1948 11121 665 Korea Telecom (KIX)
17974 1631 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1609 303 85 TPG Internet Pty Ltd
4755 1531 636 168 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1094 80 502 Sify Limited
4808 1043 2034 291 CNCGROUP IP network: China169
17488 965 187 209 Hathway IP Over Cable Interne
24560 964 343 218 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 3547 3815 221 bellsouth.net, inc.
7029 2367 1042 211 Windstream Communications Inc
18566 2095 383 177 Covad Communications
1785 1846 680 124 AppliedTheory Corporation
4323 1623 1093 388 Time Warner Telecom
20115 1594 1547 620 Charter Communications
22773 1488 2909 103 Cox Communications, Inc.
30036 1404 254 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1318 7030 863 AT&T WorldNet Services
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 1451 416 14 Corbina telecom
286 1082 827 205 KPNQwest Backbone AS
6830 651 1927 414 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 566 189 444 Akamai Technologies European
12479 547 628 51 Uni2 Autonomous System
9116 541 326 31 Goldenlines main autonomous s
3292 534 2074 408 TDC Tele Danmark
3320 502 8169 382 Deutsche Telekom AG
8866 462 133 26 Bulgarian Telecommunication C
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 1699 314 156 TVCABLE BOGOTA
28573 1474 1043 79 Types of queries are: POCs, o
8151 1421 2918 347 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 602 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 565 434 68 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 543 429 25 Prima S.A.
3816 542 233 95 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
24863 801 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 444 74 8 Nile Online
36992 284 415 20 Etisalat MISR
3741 282 939 231 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
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 3547 3815 221 bellsouth.net, inc.
7029 2367 1042 211 Windstream Communications Inc
18566 2095 383 177 Covad Communications
4766 1948 11121 665 Korea Telecom (KIX)
1785 1846 680 124 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
17974 1631 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1623 1093 388 Time Warner Telecom
7545 1609 303 85 TPG Internet Pty Ltd
20115 1594 1547 620 Charter Communications
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 2367 2156 Windstream Communications Inc
18566 2095 1918 Covad Communications
1785 1846 1722 AppliedTheory Corporation
17974 1631 1595 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
7545 1609 1524 TPG Internet Pty Ltd
8402 1451 1437 Corbina telecom
28573 1474 1395 Types of queries are: POCs, o
7552 1394 1387 Vietel Corporation
22773 1488 1385 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
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
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /10:27 /11:81 /12:236
/13:465 /14:815 /15:1454 /16:12179 /17:6320 /18:10447
/19:20483 /20:28722 /21:28068 /22:37544 /23:35755 /24:200093
/25:66 /26:86 /27:113 /28:224 /29:107 /30:469
/31:52 /32:473
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3547 bellsouth.net, inc.
18566 2044 2095 Covad Communications
7029 2026 2367 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1427 1451 Corbina telecom
30036 1365 1404 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1846 AppliedTheory Corporation
7011 1053 1171 Citizens Utilities
22773 950 1488 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:421 2:479 4:19 5:1 6:3 8:361
12:1960 13:1 14:542 15:11 16:3 17:7
20:9 23:58 24:1685 27:1025 31:679 32:150
33:2 34:2 36:4 38:756 39:1 40:110
41:2717 42:56 44:3 46:1024 47:3 49:298
50:447 52:13 55:9 56:2 57:57 58:906
59:496 60:363 61:1140 62:1104 63:1982 64:4079
65:2307 66:4303 67:2032 68:1345 69:3292 70:929
71:385 72:1833 73:1 74:2661 75:401 76:325
77:964 78:875 79:476 80:1135 81:848 82:534
83:533 84:630 85:1154 86:409 87:978 88:361
89:1609 90:237 91:4261 92:537 93:1540 94:1305
95:1100 96:432 97:286 98:943 99:37 101:226
103:434 106:7 107:84 108:76 109:1161 110:664
111:799 112:342 113:487 114:623 115:715 116:912
117:723 118:893 119:1274 120:344 121:713 122:1574
123:1018 124:1352 125:1356 128:246 129:192 130:165
131:627 132:150 133:21 134:222 135:54 136:211
137:142 138:286 139:153 140:482 141:317 142:390
143:411 144:477 145:64 146:467 147:233 148:636
149:267 150:171 151:194 152:447 153:178 154:7
155:385 156:208 157:362 158:154 159:486 160:333
161:214 162:371 163:179 164:511 165:387 166:540
167:441 168:810 169:146 170:880 171:88 172:4
173:1729 174:684 175:427 176:280 177:370 178:1093
180:1144 181:38 182:658 183:221 184:389 185:1
186:1325 187:784 188:1065 189:1147 190:5157 192:5971
193:5067 194:3585 195:3155 196:1277 197:168 198:3639
199:4212 200:5516 201:1693 202:8511 203:8544 204:4312
205:2371 206:2697 207:2822 208:4047 209:3607 210:2810
211:1465 212:2133 213:1790 214:811 215:95 216:4933
217:1600 218:568 219:339 220:1261 221:517 222:324
223:269
End of report