Routing Table Report 08:00 +10GMT Thu 24 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376796
Prefixes after maximum aggregation: 165230
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187983
Total ASes present in the Internet Routing Table: 37571
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32403
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5168
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2508
Unregistered ASNs in the Routing Table: 972
Number of 32-bit ASNs allocated by the RIRs: 1980
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3849
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2510546432
Equivalent to 149 /8s, 163 /16s and 230 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
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: 157640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90282
Total APNIC prefixes after maximum aggregation: 29957
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87685
Unique aggregates announced from the APNIC address blocks: 38644
APNIC Region origin ASes present in the Internet Routing Table: 4561
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 697
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630454784
Equivalent to 37 /8s, 147 /16s and 250 /24s
Percentage of available APNIC address space announced: 80.0
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: 144739
Total ARIN prefixes after maximum aggregation: 74089
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117259
Unique aggregates announced from the ARIN address blocks: 48580
ARIN Region origin ASes present in the Internet Routing Table: 14684
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5617
ARIN Region transit ASes present in the Internet Routing Table: 1493
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803593984
Equivalent to 47 /8s, 229 /16s and 223 /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: 92945
Total RIPE prefixes after maximum aggregation: 51187
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85106
Unique aggregates announced from the RIPE address blocks: 54417
RIPE Region origin ASes present in the Internet Routing Table: 16118
RIPE Prefixes per ASN: 5.28
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492558592
Equivalent to 29 /8s, 91 /16s and 217 /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: 35988
Total LACNIC prefixes after maximum aggregation: 7890
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35555
Unique aggregates announced from the LACNIC address blocks: 18730
LACNIC Region origin ASes present in the Internet Routing Table: 1537
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 270
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 93183488
Equivalent to 5 /8s, 141 /16s and 222 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8301
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6353
Unique aggregates announced from the AfriNIC address blocks: 2002
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.71
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 27851520
Equivalent to 1 /8s, 168 /16s and 251 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1954 11102 666 Korea Telecom (KIX)
7545 1623 303 86 TPG Internet Pty Ltd
17974 1574 511 36 PT Telekomunikasi Indonesia
4755 1504 376 168 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1095 80 494 Sify Limited
7552 982 1062 11 Vietel Corporation
24560 966 343 218 Bharti Airtel Ltd., Telemedia
4808 962 1978 277 CNCGROUP IP network China169
18101 953 119 148 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 219 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1852 680 121 PaeTec Communications, Inc.
4323 1612 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications Inc.
30036 1435 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1320 7063 869 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1404 480 15 Corbina telecom
6830 650 1927 412 UPC Broadband
34984 611 114 192 BILISIM TELEKOM
20940 560 187 441 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 489 599 12 France Telecom Espana SA
3292 481 2106 409 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
8551 416 367 39 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1700 315 179 Types of queries are: POCs, o
28573 1506 1045 71 Types of queries are: POCs, o
8151 1313 2954 337 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 597 72 87 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 545 236 96 Types of queries are: POCs, o
6503 541 434 69 Axtel, S.A.B. de C.V.
11172 528 101 96 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 893 446 12 TEDATA
24863 776 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 159 20 4 Swift Networks Limited
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3482 3814 219 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1954 11102 666 Korea Telecom (KIX)
1785 1852 680 121 PaeTec Communications, Inc.
10620 1700 315 179 Types of queries are: POCs, o
7545 1623 303 86 TPG Internet Pty Ltd
4323 1612 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
17974 1574 511 36 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2942 2730 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1852 1731 PaeTec Communications, Inc.
17974 1574 1538 PT Telekomunikasi Indonesia
7545 1623 1537 TPG Internet Pty Ltd
10620 1700 1521 Types of queries are: POCs, o
28573 1506 1435 Types of queries are: POCs, o
22773 1501 1397 Cox Communications Inc.
8402 1404 1389 Corbina telecom
4755 1504 1336 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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<<
46.18.104.0/21 8468 ENTANET International Ltd
62.61.220.0/24 24974 Tachyon Europe BV
Complete listing at http://thyme.rand.apnic.net/london/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 /14:807 /15:1428 /16:11986 /17:6073 /18:10084
/19:20099 /20:27672 /21:27832 /22:37668 /23:35243 /24:196530
/25:11 /26:21 /27:20 /28:155 /29:129 /30:64
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2555 2942 Windstream Communications Inc
6389 2124 3482 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1595 1700 Types of queries are: POCs, o
30036 1395 1435 Mediacom Communications Corp
8402 1379 1404 Corbina telecom
11492 1118 1155 CABLE ONE, INC.
1785 1058 1852 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 961 1501 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:443 4:15 5:1 6:3 8:358
12:1959 13:1 14:547 15:11 16:3 17:7
20:9 23:68 24:1685 27:1022 31:711 32:61
33:2 34:2 36:4 38:762 40:109 41:2866
42:64 44:3 46:1063 47:3 49:295 50:446
52:13 55:6 56:2 57:45 58:870 59:482
60:356 61:1052 62:913 63:1961 64:4055 65:2300
66:4332 67:2009 68:1172 69:3143 70:903 71:359
72:1814 74:2646 75:430 76:320 77:896 78:879
79:455 80:1129 81:838 82:520 83:523 84:468
85:1152 86:409 87:910 88:357 89:1592 90:237
91:4279 92:537 93:1422 94:1310 95:1067 96:391
97:285 98:779 99:37 101:120 103:506 106:1
107:97 108:86 109:1193 110:657 111:801 112:356
113:480 114:612 115:684 116:865 117:693 118:867
119:1256 120:348 121:652 122:1566 123:1019 124:1297
125:1303 128:238 129:176 130:170 131:630 132:147
133:21 134:216 135:54 136:209 137:143 138:285
139:120 140:467 141:249 142:368 143:398 144:495
145:65 146:467 147:220 148:618 149:272 150:156
151:191 152:446 153:172 154:6 155:390 156:205
157:325 158:155 159:427 160:332 161:206 162:362
163:165 164:514 165:371 166:540 167:448 168:821
169:144 170:826 171:87 172:4 173:1749 174:601
175:407 176:310 177:393 178:1123 180:1175 181:39
182:651 183:238 184:395 185:1 186:1456 187:785
188:985 189:1154 190:5204 192:5889 193:5054 194:3551
195:3112 196:1263 197:167 198:3564 199:4183 200:5463
201:1703 202:8247 203:8429 204:4234 205:2391 206:2566
207:2767 208:4014 209:3560 210:2660 211:1442 212:2041
213:1808 214:732 215:95 216:4892 217:1479 218:558
219:333 220:1217 221:507 222:297 223:276
End of report
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