The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Sunday, December 8, 2013

[bgp-stats] Routing Table Report - Washington view

* BGP Routing Table Analysis Reports *
Routing Table Report 09:00 +10GMT Mon 09 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/us/

Analysis Summary
----------------

BGP routing table entries examined: 466741
Prefixes after maximum aggregation: 188506
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 234700
Total ASes present in the Internet Routing Table: 45472
Prefixes per ASN: 10.26
Origin-only ASes present in the Internet Routing Table: 35404
Origin ASes announcing only one prefix: 16259
Transit ASes present in the Internet Routing Table: 5810
Transit-only ASes present in the Internet Routing Table: 152
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 995
Unregistered ASNs in the Routing Table: 260
Number of 32-bit ASNs allocated by the RIRs: 5478
Number of 32-bit ASNs visible in the Routing Table: 4258
Prefixes from 32-bit ASNs in the Routing Table: 13269
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1340
Number of addresses announced to Internet: 2655141472
Equivalent to 158 /8s, 66 /16s and 62 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162659

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108123
Total APNIC prefixes after maximum aggregation: 33489
APNIC Deaggregation factor: 3.23
Prefixes being announced from the APNIC address blocks: 110350
Unique aggregates announced from the APNIC address blocks: 47784
APNIC Region origin ASes present in the Internet Routing Table: 4838
APNIC Prefixes per ASN: 22.81
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 817
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 777
Number of APNIC addresses announced to Internet: 727439104
Equivalent to 43 /8s, 91 /16s and 215 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161348
Total ARIN prefixes after maximum aggregation: 81284
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 162095
Unique aggregates announced from the ARIN address blocks: 75348
ARIN Region origin ASes present in the Internet Routing Table: 15853
ARIN Prefixes per ASN: 10.22
ARIN Region origin ASes announcing only one prefix: 5997
ARIN Region transit ASes present in the Internet Routing Table: 1611
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 44
Number of ARIN addresses announced to Internet: 1072438528
Equivalent to 63 /8s, 236 /16s and 29 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118992
Total RIPE prefixes after maximum aggregation: 61103
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122793
Unique aggregates announced from the RIPE address blocks: 79025
RIPE Region origin ASes present in the Internet Routing Table: 17523
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8280
RIPE Region transit ASes present in the Internet Routing Table: 2787
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2513
Number of RIPE addresses announced to Internet: 656147552
Equivalent to 39 /8s, 28 /16s and 4 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52585
Total LACNIC prefixes after maximum aggregation: 9818
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57783
Unique aggregates announced from the LACNIC address blocks: 27430
LACNIC Region origin ASes present in the Internet Routing Table: 2037
LACNIC Prefixes per ASN: 28.37
LACNIC Region origin ASes announcing only one prefix: 554
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 917
Number of LACNIC addresses announced to Internet: 146159872
Equivalent to 8 /8s, 182 /16s and 57 /24s
Percentage of available LACNIC address space announced: 87.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11728
Total AfriNIC prefixes after maximum aggregation: 2585
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12380
Unique aggregates announced from the AfriNIC address blocks: 4056
AfriNIC Region origin ASes present in the Internet Routing Table: 688
AfriNIC Prefixes per ASN: 17.99
AfriNIC Region origin ASes announcing only one prefix: 205
AfriNIC Region transit ASes present in the Internet Routing Table: 138
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48507136
Equivalent to 2 /8s, 228 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2162 11551 653 Korea Telecom (KIX)
7545 2095 319 109 TPG Internet Pty Ltd
4755 1779 391 189 TATA Communications formerly
9829 1541 1246 45 BSNL National Internet Backbo
9583 1418 113 570 Sify Limited
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1080 2020 309 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
20115 1680 1656 596 Charter Communications
4323 1646 1114 418 Time Warner Telecom
701 1507 11144 778 MCI Communications Services,
30036 1380 311 580 Mediacom Communications Corp
7018 1339 17797 877 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1877 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1177 444 885 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 793 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1734 1161 229 Telecom Argentina Stet-France
18881 1709 908 20 Global Village Telecom
8151 1354 2852 418 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 823 94 90 Telconet S.A
6147 791 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 773 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
29571 250 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
4766 2162 11551 653 Korea Telecom (KIX)
7545 2095 319 109 TPG Internet Pty Ltd
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
8402 1877 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2720 2632 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
7545 2095 1986 TPG Internet Pty Ltd
1785 2048 1916 PaeTec Communications, Inc.
18566 2053 1875 MegaPath Corporation
8402 1877 1861 OJSC "Vimpelcom"
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1709 1689 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/us/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 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

Complete listing at http://thyme.rand.apnic.net/us/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/us/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:470 /14:923 /15:1618 /16:12787 /17:6689 /18:11079
/19:22862 /20:32779 /21:35396 /22:49629 /23:43485 /24:248493
/25:42 /26:32 /27:17 /28:18 /29:8 /30:2
/31:0 /32:9

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2053 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1591 1877 OJSC "Vimpelcom"
22773 1551 2299 Cox Communications, Inc.
30036 1220 1380 Mediacom Communications Corp
11492 1183 1224 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/us/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:924 2:835 3:3 4:16 5:810 6:21
8:610 12:1879 13:3 14:877 15:11 16:3
17:19 18:19 20:25 23:615 24:1756 27:1703
31:1511 32:43 33:2 34:5 36:96 37:1939
38:898 39:5 40:181 41:3251 42:229 44:13
46:2057 47:10 49:698 50:858 52:12 54:44
55:5 56:4 57:26 58:1070 59:580 60:367
61:1469 62:1209 63:1974 64:4338 65:2331 66:4146
67:2102 68:1077 69:3217 70:905 71:503 72:2005
74:2556 75:324 76:293 77:1216 78:1001 79:668
80:1277 81:1037 82:628 83:753 84:583 85:1254
86:382 87:1034 88:548 89:1567 90:154 91:5716
92:621 93:1609 94:2110 95:1533 96:447 97:333
98:1087 99:41 100:33 101:442 103:3775 105:531
106:143 107:228 108:502 109:1996 110:964 111:1120
112:579 113:799 114:733 115:999 116:994 117:809
118:1216 119:1267 120:331 121:731 122:1779 123:1242
124:1334 125:1438 128:592 129:218 130:338 131:661
132:344 133:158 134:295 135:72 136:269 137:264
138:351 139:165 140:171 141:330 142:537 143:400
144:495 145:90 146:542 147:422 148:726 149:368
150:149 151:486 152:415 153:207 154:46 155:515
156:303 157:368 158:283 159:696 160:361 161:453
162:900 163:204 164:625 165:574 166:275 167:637
168:1036 169:120 170:1128 171:185 172:11 173:1637
174:663 175:523 176:1317 177:2503 178:1876 179:316
180:1598 181:882 182:1402 183:476 184:622 185:1110
186:2632 187:1455 188:1960 189:1256 190:7270 192:7008
193:5460 194:4030 195:3376 196:1338 197:1052 198:4691
199:5455 200:6037 201:2526 202:8785 203:8810 204:4437
205:2627 206:2794 207:2743 208:3954 209:3639 210:2942
211:1602 212:2169 213:1992 214:886 215:84 216:5364
217:1712 218:628 219:311 220:1264 221:587 222:329
223:512

End of report
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