Routing Table Report 00:00 GMT Tue 27 Dec, 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: 391198
Prefixes after maximum aggregation: 169499
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 184095
Total ASes present in the Internet Routing Table: 39702
Prefixes per ASN: 9.85
Origin-only ASes present in the Internet Routing Table: 32605
Origin ASes announcing only one prefix: 15550
Transit ASes present in the Internet Routing Table: 5309
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 6315
Unregistered ASNs in the Routing Table: 1040
Number of 32-bit ASNs allocated by the RIRs: 2135
Number of 32-bit ASNs visible in the Routing Table: 1788
Prefixes from 32-bit ASNs in the Routing Table: 4249
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2333231334
Equivalent to 139 /8s, 18 /16s and 72 /24s
Percentage of available address space announced: 63.0
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 164446
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93926
Total APNIC prefixes after maximum aggregation: 30270
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 90346
Unique aggregates announced from the APNIC address blocks: 37124
APNIC Region origin ASes present in the Internet Routing Table: 4601
APNIC Prefixes per ASN: 19.64
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 743
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 124
Number of APNIC addresses announced to Internet: 615685888
Equivalent to 36 /8s, 178 /16s and 159 /24s
Percentage of available APNIC address space announced: 78.1
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: 149487
Total ARIN prefixes after maximum aggregation: 77099
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121382
Unique aggregates announced from the ARIN address blocks: 45983
ARIN Region origin ASes present in the Internet Routing Table: 14837
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1522
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 666664200
Equivalent to 39 /8s, 188 /16s and 125 /24s
Percentage of available ARIN address space announced: 53.0
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: 97282
Total RIPE prefixes after maximum aggregation: 51914
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88451
Unique aggregates announced from the RIPE address blocks: 53947
RIPE Region origin ASes present in the Internet Routing Table: 16236
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2577
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1249
Number of RIPE addresses announced to Internet: 478947980
Equivalent to 28 /8s, 140 /16s and 42 /24s
Percentage of available RIPE address space announced: 77.2
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: 37414
Total LACNIC prefixes after maximum aggregation: 8054
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36826
Unique aggregates announced from the LACNIC address blocks: 18930
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 23.59
LACNIC Region origin ASes announcing only one prefix: 456
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 397
Number of LACNIC addresses announced to Internet: 94925576
Equivalent to 5 /8s, 168 /16s and 115 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8596
Total AfriNIC prefixes after maximum aggregation: 2092
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6634
Unique aggregates announced from the AfriNIC address blocks: 2108
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.2
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: 30850304
Equivalent to 1 /8s, 214 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1930 11097 662 Korea Telecom (KIX)
17974 1719 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1514 385 155 Videsh Sanchar Nigam Ltd. Aut
7552 1420 1064 7 Vietel Corporation
9829 1120 989 28 BSNL National Internet Backbo
9583 1099 81 494 Sify Limited
4808 1070 2050 304 CNCGROUP IP network: China169
24560 1012 385 167 Bharti Airtel Ltd.
18101 975 131 157 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 3472 3814 220 bellsouth.net, inc.
7029 2959 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1860 680 122 AppliedTheory Corporation
4323 1616 1081 385 Time Warner Telecom
20115 1611 1549 622 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 686 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1306 7013 859 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 1587 480 15 Corbina telecom
286 1097 806 197 KPNQwest Backbone AS
15557 1092 2161 64 LDCOM NETWORKS
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 650 1928 414 UPC Distribution Services
34984 631 132 198 Tellcom Iletisim Hizmetleri
20940 560 179 447 Akamai Technologies European
8551 552 367 39 Bezeq International
12479 551 636 53 Uni2 Autonomous System
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 1721 319 159 TVCABLE BOGOTA
28573 1567 1064 75 Types of queries are: POCs, o
8151 1493 2962 349 Uninet S.A. de C.V.
7303 1252 754 175 Telecom Argentina Stet-France
27947 632 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 549 237 91 COLOMBIA TELECOMUNICACIONES S
6503 547 434 68 AVANTEL, S.A.
10481 547 429 25 Prima S.A.
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 1037 958 13 TEDATA
24863 788 146 34 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3472 3814 220 bellsouth.net, inc.
7029 2959 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1930 11097 662 Korea Telecom (KIX)
1785 1860 680 122 AppliedTheory Corporation
10620 1721 319 159 TVCABLE BOGOTA
17974 1719 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1616 1081 385 Time Warner Telecom
20115 1611 1549 622 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 2959 2745 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1860 1738 AppliedTheory Corporation
17974 1719 1681 PT TELEKOMUNIKASI INDONESIA
8402 1587 1572 Corbina telecom
10620 1721 1562 TVCABLE BOGOTA
7545 1626 1540 TPG Internet Pty Ltd
28573 1567 1492 Types of queries are: POCs, o
7552 1420 1413 Vietel Corporation
22773 1515 1408 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /12:237
/13:465 /14:819 /15:1478 /16:12208 /17:6373 /18:10475
/19:20680 /20:29119 /21:28615 /22:38853 /23:36437 /24:203544
/25:69 /26:84 /27:111 /28:291 /29:113 /30:548
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2567 2959 Windstream Communications Inc
6389 2116 3472 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1566 1587 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1063 1860 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:471 2:450 4:19 5:1 6:3 8:368
12:1948 13:1 14:581 15:11 16:3 17:7
20:9 23:79 24:1720 27:1135 31:811 32:122
33:2 34:2 36:4 37:7 38:778 39:1
40:115 41:3029 42:78 43:1 44:3 46:1149
47:3 49:282 50:473 52:13 55:5 56:2
57:52 58:930 59:489 60:344 61:1183 62:954
63:1980 64:4157 65:2303 66:4398 67:2018 68:1353
69:3248 70:971 71:410 72:1818 73:1 74:2700
75:444 76:332 77:941 78:883 79:514 80:1172
81:846 82:543 83:534 84:577 85:1165 86:754
87:909 88:364 89:1611 90:259 91:4389 92:531
93:1520 94:1346 95:1049 96:401 97:287 98:777
99:38 100:2 101:253 103:592 106:11 107:118
108:103 109:1435 110:700 111:832 112:433 113:518
114:602 115:719 116:898 117:728 118:905 119:1258
120:360 121:692 122:1617 123:1030 124:1359 125:1346
128:531 129:192 130:184 131:589 132:163 133:21
134:227 135:54 136:213 137:151 138:284 139:137
140:490 141:256 142:384 143:390 144:501 145:67
146:476 147:233 148:683 149:269 150:165 151:192
152:445 153:170 154:7 155:397 156:210 157:367
158:154 159:504 160:359 161:221 162:333 163:187
164:522 165:411 166:544 167:455 168:817 169:147
170:829 171:95 172:4 173:1825 174:603 175:436
176:323 177:427 178:1152 180:1233 181:39 182:681
183:261 184:411 185:1 186:1397 187:780 188:1007
189:1173 190:5325 192:6004 193:5466 194:3816 195:3247
196:1301 197:175 198:3634 199:4245 200:5538 201:1691
202:8551 203:8481 204:4347 205:2423 206:2706 207:2823
208:4027 209:3593 210:2756 211:1485 212:2007 213:1814
214:796 215:93 216:4956 217:1485 218:570 219:336
220:1262 221:530 222:325 223:265
End of report
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