Routing Table Report 00:00 GMT Mon 17 Oct, 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: 381760
Prefixes after maximum aggregation: 170785
Deaggregation factor: 2.24
Unique aggregates announced to Internet: 185059
Total ASes present in the Internet Routing Table: 39063
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32376
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5168
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4924
Unregistered ASNs in the Routing Table: 798
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 1519
Prefixes from 32-bit ASNs in the Routing Table: 3475
Special use prefixes present in the Routing Table: 90
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2484266514
Equivalent to 148 /8s, 18 /16s and 230 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159195
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93073
Total APNIC prefixes after maximum aggregation: 30004
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89519
Unique aggregates announced from the APNIC address blocks: 37911
APNIC Region origin ASes present in the Internet Routing Table: 4567
APNIC Prefixes per ASN: 19.60
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 93
Number of APNIC addresses announced to Internet: 628485120
Equivalent to 37 /8s, 117 /16s and 236 /24s
Percentage of available APNIC address space announced: 79.7
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: 148332
Total ARIN prefixes after maximum aggregation: 76342
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120077
Unique aggregates announced from the ARIN address blocks: 47772
ARIN Region origin ASes present in the Internet Routing Table: 14737
ARIN Prefixes per ASN: 8.15
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1516
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804675608
Equivalent to 47 /8s, 246 /16s and 96 /24s
Percentage of available ARIN address space announced: 63.9
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: 92598
Total RIPE prefixes after maximum aggregation: 50734
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 84428
Unique aggregates announced from the RIPE address blocks: 54147
RIPE Region origin ASes present in the Internet Routing Table: 16049
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2489
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1068
Number of RIPE addresses announced to Internet: 491125708
Equivalent to 29 /8s, 69 /16s and 251 /24s
Percentage of available RIPE address space announced: 79.1
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: 35575
Total LACNIC prefixes after maximum aggregation: 7862
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34904
Unique aggregates announced from the LACNIC address blocks: 17875
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 22.68
LACNIC Region origin ASes announcing only one prefix: 454
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 342
Number of LACNIC addresses announced to Internet: 90848008
Equivalent to 5 /8s, 106 /16s and 59 /24s
Percentage of available LACNIC address space announced: 60.2
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: 8538
Total AfriNIC prefixes after maximum aggregation: 2028
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6610
Unique aggregates announced from the AfriNIC address blocks: 1968
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27805696
Equivalent to 1 /8s, 168 /16s and 72 /24s
Percentage of available AfriNIC address space announced: 41.4
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
17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1935 11071 654 Korea Telecom (KIX)
7545 1609 303 86 TPG Internet Pty Ltd
4755 1534 379 171 Videsh Sanchar Nigam Ltd. Aut
7552 1387 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1051 2080 298 CNCGROUP IP network: China169
24560 1018 342 229 Bharti Airtel Ltd.
18101 953 165 143 Reliance Infocom Ltd Internet
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 222 bellsouth.net, inc.
7029 2143 1041 209 Windstream Communications Inc
18566 2097 382 176 Covad Communications
1785 1839 680 121 AppliedTheory Corporation
4323 1630 1099 392 Time Warner Telecom
20115 1589 1541 635 Charter Communications
22773 1461 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1391 251 673 Mediacom Communications Corp
7018 1345 7097 852 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 1459 352 13 Corbina telecom
286 1079 825 201 KPNQwest Backbone AS
6830 655 1928 416 UPC Distribution Services
34984 582 108 180 Tellcom Iletisim Hizmetleri
20940 549 185 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 534 2082 409 TDC Tele Danmark
3320 501 8169 383 Deutsche Telekom AG
12479 482 593 7 Uni2 Autonomous System
8866 459 133 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 1681 310 155 TVCABLE BOGOTA
8151 1459 2841 345 Uninet S.A. de C.V.
28573 1368 1015 68 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
27947 592 72 79 Telconet S.A
6503 583 450 71 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 542 233 96 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 799 146 34 LINKdotNET AS number
8452 655 446 12 TEDATA
15475 454 74 8 Nile Online
36992 299 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 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 222 bellsouth.net, inc.
7029 2143 1041 209 Windstream Communications Inc
18566 2097 382 176 Covad Communications
17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1935 11071 654 Korea Telecom (KIX)
1785 1839 680 121 AppliedTheory Corporation
10620 1681 310 155 TVCABLE BOGOTA
4323 1630 1099 392 Time Warner Telecom
7545 1609 303 86 TPG Internet Pty Ltd
20115 1589 1541 635 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 2143 1934 Windstream Communications Inc
18566 2097 1921 Covad Communications
17974 1937 1904 PT TELEKOMUNIKASI INDONESIA
1785 1839 1718 AppliedTheory Corporation
10620 1681 1526 TVCABLE BOGOTA
7545 1609 1523 TPG Internet Pty Ltd
8402 1459 1446 Corbina telecom
7552 1387 1380 Vietel Corporation
4755 1534 1363 Videsh Sanchar Nigam Ltd. Aut
22773 1461 1361 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 36938 >>UNKNOWN<<
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 /12:235
/13:464 /14:815 /15:1462 /16:12144 /17:6289 /18:10452
/19:20501 /20:28431 /21:27700 /22:37344 /23:35632 /24:198487
/25:66 /26:86 /27:116 /28:279 /29:106 /30:479
/31:53 /32:479
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3547 bellsouth.net, inc.
18566 2047 2097 Covad Communications
7029 1813 2143 Windstream Communications Inc
10620 1576 1681 TVCABLE BOGOTA
8402 1436 1459 Corbina telecom
30036 1353 1391 Mediacom Communications Corp
11492 1114 1152 Cable One
1785 1056 1839 AppliedTheory Corporation
7011 1048 1166 Citizens Utilities
22773 949 1461 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:402 2:477 4:19 5:1 6:3 8:360
12:1960 13:1 14:540 15:11 16:3 17:7
20:9 23:58 24:1689 27:965 31:597 32:150
33:4 34:2 36:4 38:756 39:1 40:109
41:2655 42:51 44:3 46:998 47:3 49:265
50:446 52:13 55:6 56:2 57:46 58:886
59:491 60:367 61:1178 62:1101 63:1947 64:4133
65:2310 66:4290 67:1996 68:1329 69:3345 70:926
71:377 72:1897 73:1 74:2630 75:389 76:354
77:886 78:866 79:482 80:1148 81:829 82:512
83:536 84:645 85:1119 86:407 87:894 88:360
89:1606 90:269 91:4205 92:526 93:1527 94:1305
95:1056 96:441 97:283 98:920 99:37 101:217
103:368 106:70 107:68 108:60 109:1061 110:671
111:789 112:327 113:482 114:614 115:698 116:908
117:713 118:913 119:1241 120:339 121:709 122:1571
123:1026 124:1363 125:1388 128:257 129:182 130:165
131:586 132:144 133:21 134:218 135:54 136:213
137:139 138:290 139:151 140:488 141:294 142:385
143:428 144:493 145:64 146:473 147:225 148:686
149:258 150:167 151:192 152:448 153:178 154:7
155:387 156:203 157:360 158:152 159:476 160:324
161:214 162:339 163:181 164:509 165:390 166:537
167:438 168:737 169:146 170:872 171:86 172:4
173:1711 174:674 175:434 176:280 177:323 178:1054
180:1119 181:36 182:672 183:216 184:371 185:1
186:1283 187:691 188:935 189:857 190:5108 192:5957
193:5041 194:3580 195:3125 196:1248 197:172 198:3640
199:4163 200:5516 201:1654 202:8574 203:8575 204:4294
205:2377 206:2703 207:2829 208:4078 209:3653 210:2803
211:1463 212:2114 213:1778 214:785 215:90 216:5026
217:1618 218:565 219:337 220:1244 221:515 222:347
223:279
End of report
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